US20060275151A1 - Pump and heat exchanger - Google Patents
Pump and heat exchanger Download PDFInfo
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- US20060275151A1 US20060275151A1 US11/141,001 US14100105A US2006275151A1 US 20060275151 A1 US20060275151 A1 US 20060275151A1 US 14100105 A US14100105 A US 14100105A US 2006275151 A1 US2006275151 A1 US 2006275151A1
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- United States
- Prior art keywords
- tube
- section
- fins
- tube assembly
- tubing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/5866—Cooling at last part of the working fluid in a heat exchanger
Abstract
A pump includes an impeller with impeller blades that extend radially outward. The pump may further include a pump housing that may surround a radial perimeter of the impeller. Furthermore, the pump housing may include an inlet opening in fluid communication with the impeller and a discharge channel. The pump may further include a heat exchanger supported within the pump housing between the inlet opening and at least one connection port. of the pump housing. The heat exchanger may include one or more tubing coils that extend around an axis.
Description
- The present disclosure relates to a heat exchanger and, more particularly, to a heat exchanger for pumps.
- Pumps heat the fluid they pump, particularly gas. In many applications, removing some of the heat that a pump adds to fluid improves the operation of the device that the pump supplies. For example, cooling the air a turbomachine discharges can improve the operation of the engine that it supplies. To cool the discharge of a pump, a heat exchanger is often plumbed between the outlet of the pump and the system the pump supplies.
- In many applications, however, space constraints complicate or prevent using plumbing to connect a heat exchanger between the outlet of a pump and the system it supplies. For example, in a multi-stage turbocharging system, limited space may preclude plumbing a heat exchanger between the outlet of a first compressor and the inlet of a second compressor.
- At least one pump design enables cooling the pumped fluid without plumbing a heat exchanger between the outlet of the pump and the device it supplies. For example, U.S. Patent Application No. 2004/0055740 (“the '740 application”) shows a rotary compressor with a ring-shaped heat exchanger in the housing of the rotary compressor. The heat exchanger is disposed between a compressor wheel of the rotary compressor and an outlet of the housing, such that fluid discharged by the compressor wheel flows across the heat exchanger before leaving the housing. The heat exchanger includes ring-shaped tanks on its ends and numerous tubes extending axially between, and connecting, the ring-shaped tanks. A connection between each tube and each ring-shaped tank is effected by a tight mechanical fit between the tube and a tube slot and, optionally, solder or braze metal.
- Although the rotary compressor of the '740 application includes a heat exchanger for cooling the pumped fluid, the design includes disadvantages. Applying solder or braze metal at the numerous connections between the ring-shaped tanks and the tubes requires significant labor. Each of the connections between the ring-shaped tanks and the tubes presents a risk of developing a fluid leak. The housing of the rotary heat exchanger restricts physical access to the heat exchanger, which may complicate repairing any fluid leaks that the numerous connections develop.
- The pump and heat exchanger of the present disclosure solves one or more of the problems set forth above.
- One disclosed embodiment includes a pump that may include an impeller with impeller blades that extend radially outward. The pump may further include a pump housing that surrounds a radial perimeter of the impeller. Additionally, the pump housing may include an inlet opening in fluid communication with the impeller and a discharge channel. The pump may further include a heat exchanger supported within the pump housing between the inlet opening and at least one connection port of the pump housing. The heat exchanger may include one or more tubing coils that extend around an axis.
- Another embodiment relates to a method of constructing a heat exchanger. The method may include forming a first section of tube assembly, including bending a ribbon parallel to its major surfaces multiple times around a fixture to form the ribbon into multiple fins. Additionally, forming the first section of tube assembly may include securing the ribbon around a first section of tube with the fins formed by the ribbon extending from the first section of tube.
- Another embodiment relates to an assembly that may include a first set of helical tubing coils that may extend in a series in a first direction along a central axis. The assembly may further include a second set of helical tubing coils that may extend in a series in a second direction along the central axis. At least some of the tubing coils of the second set of helical tubing coils may extend between at least some of the tubing coils of the first set of helical tubing coils. As a result, at least some of the tubing coils of the first set of helical tubing coils may be disposed in alternating positions along the central axis with at least some of the tubing coils of the second set of helical tubing coils.
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FIG. 1A is a sectional illustration of one embodiment of a pump according to the present disclosure; -
FIG. 1B is a sectional illustration of the pump shown inFIG. 1A , throughline 1B-1B ofFIG. 1A ; -
FIG. 2A is a section illustration of another embodiment of a pump according to the present disclosure; -
FIG. 2B is a sectional illustration of the pump shown inFIG. 2A , throughline 2B-2B ofFIG. 2A ; -
FIG. 3A is a perspective illustration of one embodiment of a heat exchanger according to the present disclosure; -
FIG. 3B is a sectional illustration of the heat exchanger shown inFIG. 3A , throughline 3B-3B ofFIG. 3A ; -
FIG. 3C is a sectional illustration of the heat exchanger shown inFIGS. 3A and 3B , throughline 3C-3C ofFIG. 3A ; -
FIG. 4 is a perspective illustration of another embodiment of a heat exchanger according to the present disclosure; -
FIG. 5 is a perspective illustration of another embodiment of a heat exchanger according to the present disclosure; -
FIG. 6A is a perspective illustration of a tube with fins and spacers attached according to the present disclosure; -
FIG. 6B is a sectional illustration of the tube, fins, and spacers shown inFIG. 6A , throughline 6B-6B ofFIG. 6A ; -
FIG. 7A is a perspective illustration of one embodiment of a method of manufacturing fins for a heat exchanger according to the present disclosure; -
FIG. 7B is a plan illustration of the method illustrated inFIG. 7A ; -
FIG. 8A is a perspective illustration of one embodiment of a method of shaping fins for a heat exchanger according to the present disclosure; -
FIG. 8B is a sectional illustration throughline 8B-8B ofFIG. 8A ; -
FIG. 9A is a perspective illustration of another embodiment of a method of shaping fins for a heat exchanger according to the present disclosure; -
FIG. 9B is a sectional illustration throughline 9B-9B ofFIG. 9A ; -
FIG. 10 is a plan illustration of one embodiment of a method of bending a tube for a heat exchanger according to the present disclosure; -
FIG. 11 is an illustration of one manufacturing method that may be used in the construction of the heat exchanger shown inFIGS. 3A-3C ; -
FIG. 12 is an elevational illustration of one embodiment of a method of attaching heat exchanger sections to a spacer according to the present disclosure. -
FIG. 1A provides a sectional view of apump 10 according to an exemplary disclosed embodiment, andFIG. 1B shows a section ofpump 10 throughline 1B-1B ofFIG. 1A .Pump 10 includes apump housing 12, animpeller 14, and aheat exchanger 16.Pump 10 may be a compressor of a turbocharger or supercharger. -
Pump housing 12 may supportimpeller 14 and allow rotation ofimpeller 14 around animpeller rotation axis 18.Pump housing 12 may define aninlet opening 20.Pump housing 12 may also define adischarge channel 22 that may extend from adjacent aradial perimeter 24 ofimpeller 14 to one ormore connection ports Inlet opening 20 may be in fluid communication withconnection ports discharge channel 22.Pump housing 12 may also surroundradial perimeter 24 ofimpeller 14. In other words, with the exception of any openings defined by anyconnection ports housing 12 may encloseradial perimeter 24 ofimpeller 14 in directions parallel toimpeller rotation axis 18 and directions perpendicular toimpeller rotation axis 18. - As is best shown in
FIG. 1A , dischargechannel 22 may defineflow paths 31 fromradial perimeter 24 ofimpeller 14 toconnection ports Discharge channel 22 may include aradial inlet slot 30 that extends aroundradial perimeter 24 ofimpeller 14.Discharge channel 22 may further include anannular space 32 extending aroundimpeller rotation axis 18. -
Discharge channel 22 is not limited to the configuration shown inFIGS. 1A and 1B . In place ofradial inlet slot 30,discharge channel 22 may include one or more passages with other shapes and/or other orientations. Additionally, dischargechannel 22 may include cavities of other shapes, such as elliptical or rectangular, in addition to, or in place of,annular space 32. Furthermore,annular space 32, or any cavity of another shape in place thereof, may be defined at some other place alongimpeller rotation axis 18. For example,annular space 32 may be defined aroundimpeller 14, withannular space 32 connecting directly to an outer portion ofradial inlet slot 30. - As best shown by
FIG. 1A ,connection ports discharge openings pump housing 12 and include features that facilitate connecting other components in fluid communication withdischarge openings Connection port 26 may include a cylindrical boss, which may facilitate connecting a tube in fluid communication with discharge opening 34 by clamping the tube around the cylindrical boss.Connection port 28 may include a portion ofpump housing 12 that defines a cylindrical inner surface arounddischarge opening 36.Connection port 28 may facilitate connecting a plumbing fitting in fluid communication with discharge opening 36 by engaging a cylindrical outer surface of the plumbing fitting with the cylindrical inner surface ofconnection port 28, such as by adhesive, metallic bond, or press fit. Aconnection port connection port 26 may be connected to an engine (not shown), such thatpump 10 may supply combustion air to the engine throughconnection port 26. Additionally, aconnection port pump 10. For example,connection port 28 may be connected to a pressure or temperature sensor (not shown). -
Connection ports FIG. 1A .Connection ports discharge openings connection ports discharge openings Connection ports discharge openings discharge openings -
Impeller 14 includes impeller blades 38 that extend radially away fromimpeller rotation axis 18. Impeller blades 38 may extend straight out fromimpeller rotation axis 18, or impeller blades 38 may extend radially away fromimpeller rotation axis 18 in a slanted or curved manner. -
Heat exchanger 16 may reside withinpump housing 12 between inlet opening 20 and one ormore connection ports heat exchanger 16 may reside indischarge channel 22.Heat exchanger 16 may reside withinannular space 32.Heat exchanger 16 may include one or more tubing coils 58 that extend aroundimpeller rotation axis 18. Tubing coil, as the term is used herein, refers to a length of tubing that extends one full loop around an axis. As best shown inFIG. 1A ,heat exchanger 16 may includemultiple tubes 54, and, as is best shown inFIG. 1B , one or more oftubes 54 may form multiple tubing coils 58. Tube, as the term is used herein, refers to a continuous length of tubing formed as a unit. As can be seen inFIG. 1B , tubing coils 58 may be spiral tubing coils. Eachtube 54 may form tubing coils 58 by spiraling from oneend 60 oftube 54 radially outwardly to anotherend 62 oftube 54. As can be best seen inFIG. 1B ,heat exchanger 16 may include onemanifold 50 that connects to each oftubes 54 and another manifold 52 that also connects to each oftubes 54. As is best shown inFIG. 1A ,heat exchanger 16 may be disposed withindischarge channel 22 such that radially outer portions of tubing coils 58 are closer alongflow paths 31 toradial perimeter 24 ofimpeller 14 than are radially inner portions of tubing coils 58. Tubing coils 58 may be constructed of a malleable material, such as aluminum, copper, another metal, or a metallic alloy. Moreover, tubing coils 58 may be constructed of material with high thermal conductivity. -
Heat exchanger 16 is not limited to the configuration shown inFIGS. 1A and 1B . For example, tubing coils 58 may extend in paths of other shapes, such as elliptical or rectangular, aroundimpeller rotation axis 18. Additionally, whileFIGS. 1A and 1B show round tubing forming tubing coils 58, tubing of any shape may form tubing coils 58. Furthermore,heat exchanger 16 may omit one or more oftubes 54. Additionally,heat exchanger 16 may omit one or both ofmanifolds heat exchanger 16 may include fins joined to tubing coils 58. Additionally,heat exchanger 16 may include spacers attached to such fins. -
FIGS. 2A and 2B show apump 41 consistent with another embodiment.Pump 41 may include apump housing 43, afirst impeller 45, asecond impeller 47, andheat exchanger 16.Pump 41 may be a compressor of a two-stage turbocharger or supercharger. -
Pump housing 43 may supportfirst impeller 45 andsecond impeller 47 and allow rotation offirst impeller 45 andsecond impeller 47 around animpeller rotation axis 51.Pump housing 43 may define aninlet opening 53.Pump housing 43 may also define adischarge channel 55 that may extend from adjacent aradial perimeter 57 offirst impeller 45 to one ormore connection ports Inlet opening 53 may be in fluid communication withconnection ports discharge channel 55.Pump housing 43 may also surroundradial perimeter 57 offirst impeller 45. In other words, with the exception of any openings defined by anyconnection ports housing 43 may encloseradial perimeter 57 offirst impeller 45 in directions parallel toimpeller rotation axis 51 and directions perpendicular toimpeller rotation axis 51. Similarly, pumphousing 43 may surround aradial perimeter 87 ofsecond impeller 47. - As is best shown in
FIG. 2A , dischargechannel 55 may defineflow paths 63 fromradial perimeter 57 offirst impeller 45 toconnection ports Discharge channel 55 may include aradial inlet slot 65 that extends aroundradial perimeter 57 offirst impeller 45.Discharge channel 55 may further include anannular chamber 67 disposed aroundimpeller rotation axis 51.Discharge channel 55 may also include a second-impeller chamber 69, within whichsecond impeller 47 may reside. -
Discharge channel 55 is not limited to the configuration shown inFIGS. 2A and 2B . In place ofradial inlet slot 65,discharge channel 55 may include one or more passages with other shapes and/or other orientations. - Additionally, discharge
channel 55 may include chambers of other shapes, such as elliptical or rectangular, in addition to, or in place of,annular chamber 67. Furthermore,annular chamber 67 may be defined at some other place alongimpeller rotation axis 51. For example,annular chamber 67 may connect to and surroundradial inlet slot 65. - As best shown by
FIG. 2A ,connection ports discharge openings pump housing 43 and include features that facilitate connecting other components in fluid communication withdischarge openings Connection port 59 may include a cylindrical boss, which may facilitate connecting a tube in fluid communication with discharge opening 71 by clamping the tube around the cylindrical boss.Connection port 61 may include a portion ofpump housing 43 that defines a cylindrical inner surface arounddischarge opening 73.Connection port 61 may facilitate connecting a plumbing fitting in fluid communication with discharge opening 73 by engaging a cylindrical outer surface of the plumbing fitting with the cylindrical inner surface ofconnection port 61, such as by adhesive, metallic bond, or press fit. Aconnection port connection port 59 may be connected to an engine (not shown), such thatpump 10 may supply combustion air to the engine throughconnection port 59. Additionally, aconnection port pump 10. For example,connection port 61 may be connected to a pressure or temperature sensor (not shown). -
Connection ports FIG. 2A .Connection ports discharge openings connection ports discharge openings Connection ports discharge openings discharge openings -
First impeller 45 andsecond impeller 47 includeimpeller blades 75 that extend radially away fromimpeller rotation axis 51.Impeller blades 75 may extend straight out fromimpeller rotation axis 51, orimpeller blades 75 may extend away fromimpeller rotation axis 51 in a slanted or curved manner. -
Heat exchanger 16 may reside withinpump housing 43 between inlet opening 53 and one ormore connection ports heat exchanger 16 may reside indischarge channel 55 betweenfirst impeller 45 andsecond impeller 47 alongflow paths 63.Heat exchanger 16 may be disposed inannular chamber 67. Tubing coils 58 ofheat exchanger 16 may extend aroundimpeller rotation axis 51. As is best shown inFIG. 2A ,heat exchanger 16 may be disposed indischarge channel 55 such that radially outer portions of tubing coils 58 are disposed closer alongflow paths 63 toradial perimeter 57 offirst impeller 45 than are radially inner portions of tubing coils 58. Tubing coils 58 may be constructed of material with relatively high thermal conductivity. -
FIGS. 3A-3C show another embodiment of aheat exchanger 42 suitable for use inpump 10 orpump 41.Heat exchanger 42 may be similar to the configuration ofheat exchanger 16 shown inFIGS. 1A-2B , with the addition offins 56 andspacers 46.FIG. 3A is a perspective view ofheat exchanger 42,FIG. 3B is a sectional view ofheat exchanger 42 throughline 3B-3B ofFIG. 3A , andFIG. 3C is a sectional view ofheat exchanger 42 throughline 3C-3C ofFIG. 3A . As best shown inFIG. 3B ,heat exchanger 42 may include multipleheat exchanger sections 44.Heat exchanger 42 may also includemanifolds heat exchanger sections 44. - Each
heat exchanger section 44 may include atube assembly 39, includingtube 54 andfins 56 joined thereto, andspacers 46 on opposite sides oftube assembly 39. As is best shown byFIG. 3C , eachtube assembly 39 of eachheat exchanger section 44 may be formed in a radially-outwardly extending spiral including multiple tubing coils 58 that spiral radially outwardly aroundcentral axis 48 betweenend 60 oftube 54 and end 62 oftube 54. As can be seen inFIG. 3C ,fins 56 joined to eachtubing coil 58 of eachtube assembly 39 may be misaligned withfins 56 joined to radially-adjacent tubing coils 58. This misalignment may improve performance ofheat exchanger 42 by creating turbulence in fluid that flows radially acrossheat exchanger 42. Eachtube 54,fins 56, andspacers 46 may be constructed of material with relatively high thermal conductivity. - Each
spacer 46 may attach tofins 56 of one ormore tube assemblies 39. Eachspacer 46 may spiral substantially parallel to anadjacent tube assembly 39, radially outwardly aroundcentral axis 48. Eachspacer 46 betweenadjacent tube assemblies 39 may attach tofins 56 of both of theadjacent tube assemblies 39, thereby attachingadjacent tube assemblies 39 to one another.Tube assemblies 39 may be connected to one another in such a manner that they spiral radially outward substantially parallel to one another. Additionally, ends 60 oftubes 54 may be disposed adjacent one another, and ends 62 oftubes 54 may be disposed adjacent one another.Manifold 50 may connect toends 60 oftubes 54. Similarly, manifold 52 may connect toends 62 oftubes 54. -
Heat exchanger 42 is not limited to the configuration shown inFIGS. 3A-3C . For example, whileFIGS. 3A-3C show each oftube assembly 39 forming a planar spiral, one or more oftube assemblies 39 may form a conical spiral. Additionally, whiletubes 54 are shown as having a circular cross-section, they may have cross-sections of other shapes. Furthermore,heat exchanger 42 may implement different configurations offins 56 andspacers 46, as described in greater detail below in connection withFIGS. 6A and 6B . - According to certain embodiments, pump 10 or pump 41 may include
heat exchanger 42. For example,heat exchanger 42 could be mounted withinannular chamber 32 ofpump 10 in place ofheat exchanger 16.Heat exchanger 42 may reside withindischarge channel 22 withtubing coils 58 extending aroundimpeller rotation axis 18. Additionally,heat exchanger 42 could be mounted withinannular chamber 67 ofpump 41 in place ofheat exchanger 16.Heat exchanger 42 may reside withindischarge channel 55 withtubing coils 58 extending aroundimpeller rotation axis 51. -
FIG. 4 shows another embodiment of aheat exchanger 64 suitable for use inpump 10 orpump 41.Heat exchanger 64 may include a first set of helical tubing coils 70 that may extend in series in afirst direction 68 along acentral axis 66.Heat exchanger 64 may also include a second set of helical tubing coils 74 that may also extend in series infirst direction 68 alongcentral axis 66. Afirst end 79 of first set of helical tubing coils 70 may be fluidly connected to afirst end 81 of second set of helical tubing coils 74. For example, aconnector 72, such as a 1800 tubing elbow, may be fluidly connected betweenfirst end 79 of first set of helical tubing coils 70 andfirst end 81 of second set of helical tubing coils 74. At least a portion of first set of helical tubing coils 70 and at least a portion of second set of helical tubing coils 74 may extend along a same portion ofcentral axis 66. As is shown inFIG. 4 , some or all of helical tubing coils 70 may extend between some of helical tubing coils 74, such that some or all of helical tubing coils 70 are disposed in alternating positions with helical tubing coils 74 alongcentral axis 66. Asecond end 83 of first set of helical tubing coils 70 may be connected to a first tube ending 76. Asecond end 85 of second set of helical tubing coils 74 may be connected to a second tube ending 78. First tube ending 76 and second tube ending 78 may be disposed adjacent one another. Tubing coils 70, 74 may be constructed of a malleable material such as aluminum, copper, another metal, or a metallic alloy. Furthermore, tubing coils 70, 74 may be constructed of a material with relatively high thermal conductivity. -
Heat exchanger 64 is not limited to the configuration shown inFIG. 4 . For example, whileFIG. 4 shows helical tubing coils 70 and helical tubing coils 74 having a same radial dimension, helical tubing coils 70 may have a greater or smaller radial dimension than helical tubing coils 74. Additionally, the radial dimension of helical tubing coils 70 and/or the radial dimension of helical tubing coils 74 may vary alongcentral axis 66. Furthermore,heat exchanger 64 may omit first set of helical tubing coils 70 and/or second set of helical tubing coils 74. Alternatively,heat exchanger 64 may include other tubing coils in addition to helical tubing coils 70 and 74. Such additional tubing coils may have shapes other than helical. Furthermore,heat exchanger 64 may include portions that are not formed in tubing coils. - Consistent with certain disclosed embodiments, pump 10 or pump 41 may include
heat exchanger 64. For example,heat exchanger 64 may reside withinannular chamber 32 ofpump 10 in place ofheat exchanger 16.Heat exchanger 64 may reside withindischarge channel 22 with tubing coils 70, 74 extending aroundimpeller rotation axis 18. Additionally,heat exchanger 64 may reside withinannular chamber 67 ofpump 41 in place ofheat exchanger 16.Heat exchanger 64 may reside withindischarge channel 55 with tubing coils 70, 74 extending aroundimpeller rotation axis 51. -
FIG. 5 shows aheat exchanger 80, which is similar toheat exchanger 64, illustrated inFIG. 4 , with the addition offins 56 andspacers 46. Inheat exchanger 80, afirst section 91 oftube assembly 39, which includes a section oftube 54 andfins 56, may extend helically alongcentral axis 66 and may include first set of helical tubing coils 70. Asecond section 93 oftube assembly 39 may extend helically aroundcentral axis 66 and include second set of helical tubing coils 74.Fins 56 may extend from eachhelical tubing coil 70 toward adjacent helical tubing coils 74. Similarly,fins 56 may extend from eachhelical tubing coil 74 toward adjacent helical tubing coils 70. A portion ofspacer 46 may extend substantially parallel to eachhelical tubing coil 70 between it and an adjacenthelical tubing coil 74. The portion ofspacer 46 between eachhelical tubing coil 70 and an adjacenthelical tubing coil 74 may attach tofins 56 extending fromhelical tubing coil 70 andfins 56 extending from adjacenthelical tubing coil 74, thereby attachinghelical tubing coil 70 to adjacenthelical tubing coil 74. - Consistent with certain disclosed embodiments, pump 10 or pump 41 may include
heat exchanger 80. For example,heat exchanger 80 may reside withinannular chamber 32 ofpump 10 in place ofheat exchanger 16.Heat exchanger 80 may reside withindischarge channel 22 with tubing coils 70, 74 extending aroundimpeller rotation axis 18. Additionally,heat exchanger 80 may reside withinannular chamber 67 ofpump 41 in place ofheat exchanger 16.Heat exchanger 80 may reside withindischarge channel 55 with tubing coils 70, 74 extending aroundimpeller rotation axis 51. -
FIGS. 6A and 6B show a configuration oftube assembly 39 andspacers 46 consistent with certain embodiments.FIG. 6A is a perspective view oftube assembly 39 withspacers 46 mounted tofins 56.FIG. 6B is a sectional view of the assembly shown inFIG. 6A , through a cross-section oftube 54.Fins 56 may be joined totube 54 along a length thereof to formtube assembly 39.Fins 56 may extend completely or partially aroundtube 54. Alternatively,fins 56 may extend from only one side oftube 54.Fins 56 may have parallelstraight edges 82 on opposite sides oftube 54. - One or
more spacers 46 may attach tofins 56 and extend substantially parallel totube 54.Spacers 46 may attach toedges 82 on opposite sides oftube 54.Spacers 46 may have rectangular cross-sections, as is shown inFIGS. 6A and 6B .Spacers 46 may be constructed of a malleable material, such as aluminum, copper, another metal, or a metallic alloy. Furthermore, spacers 46 may be constructed of a material with relatively high thermal conductivity. -
Tube 54,fins 56, andspacers 46 are not limited to the configuration shown inFIGS. 6A and 6B . For example, whileFIGS. 6A and 6B show spacers 46 attached to everyfin 56,spacers 46 may attach to only a subset offins 56 joined totube 54. Additionally,fins 56 may extend through openings inspacers 46 and/orspacers 46 may extend through openings infins 56. Furthermore, whileFIGS. 6A and 6B show spacers 46 as having rectangular cross-sections,spacers 46 may have cross-sections of other shapes. -
Pump 10 and pump 41 have potential application in any system requiring movement of fluid where heating or cooling of the fluid discharged from the pump is desired. -
Pump 10 may be operated by rotatingimpeller 14 aboutimpeller rotation axis 18. Whenimpeller 14 is rotated, impeller blades 38 pump fluid intodischarge channel 22.Discharge channel 22 routes the pumped fluid alongflow paths 31 toconnection ports pump housing 12, the pumped fluid flows across tubing coils 58 or 70 and 74 of anyheat exchangers discharge channel 22. Consistent with certain embodiments, such as the embodiment shown inFIGS. 1A and 1B , the pumped fluid may flow from radially outside tubing coils 58, or 70 and 74 to radially inside tubing coils 58 or 70 and 74. Heat-transfer fluid may flow through any tubing coils 58 or 70 and 74 disposed withindischarge channel 22. The heat-transfer fluid accepts heat from or conveys heat to the pumped fluid, dependant upon the respective temperatures of the heat-transfer fluid and the pumped fluid. -
Pump 41 may be operated by rotatingfirst impeller 45 aboutimpeller rotation axis 51. Whenfirst impeller 45 is rotated,impeller blades 75 pump fluid intodischarge channel 55.Discharge channel 55 routes the pumped fluid alongflow paths 63 toconnection ports second impeller 47 is rotated aroundimpeller rotation axis 51, it may accelerate the pumped fluid out of second-impeller chamber 69 through portions ofdischarge channel 55 between second-impeller chamber 69 andconnection port 59. As the pumped fluid flows throughpump housing 43, the pumped fluid flows across tubing coils 58 or 70 and 74 of anyheat exchangers discharge channel 55. Consistent with certain embodiments, such as the embodiment shown inFIGS. 2A and 2B , the pumped fluid may flow from radially outside tubing coils 58 or 70 and 74 to radially inside tubing coils 58 or 70 and 74. Heat-transfer fluid may flow through any tubing coils 58 or 70 and 74 disposed withindischarge channel 55. The heat-transfer fluid accepts heat from or conveys heat to the pumped fluid, dependant upon the respective temperatures of the heat-transfer fluid and the pumped fluid. - The disclosed embodiments of
heat exchangers respective axis tubing coil heat exchangers tube 54 may extend multiple times around arespective axis heat exchangers pump housing 12 or pumphousing 43 without causing a need to frequently disassemblepump housing 12 or pumphousing 43 to repair leaks. - Additionally, the configurations of
heat exchangers FIGS. 7A and 7B illustrate a method that may be utilized in joiningfins 56 totube 54 to formtube assembly 39. Aribbon 84 may be bent parallel to itsmajor surfaces 86 around a fixture multiple times to formmultiple fins 56. Amajor surface 86 of a ribbon, as the term is used herein, refers to one of the two surfaces that compose the majority of the surface area of the ribbon.Ribbon 84 may be constructed of a malleable material such as a metal or a metal alloy. Consistent with certain embodiments,tube 54 may be the fixture around whichribbon 84 is bent. As shown inFIGS. 7A and 7B ,tube 54 may be clamped in achuck 88 along with anend 90 ofribbon 84.Chuck 88 may then rotatetube 54 and end 90 around anaxis 92 oftube 54, while aguide 94 stops anouter portion 96 ofribbon 84 from rotating withtube 54. While holdingouter portion 96 ofribbon 84 against rotation, guide 94 may allowouter portion 96 ofribbon 84 to advance towardtube 54. Aschuck 88 andtube 54 rotate, they may drawouter portion 96 ofribbon 84 towardtube 54 and bend successive portions ofribbon 84 aroundtube 54. Aschuck 88 andtube 54 bend successive portions ofribbon 84 aroundtube 54, guide 94 may moveouter portion 96 ofribbon 84 alongaxis 92, so as to formribbon 84 into coils that advance alongaxis 92, formingfins 56.Chuck 88 andtube 54 may rotate at a constant rate, and guide 94 may advance at a constant rate alongaxis 92, so as to formribbon 84 into a helix aroundtube 54.Tube 54 andribbon 84 may be constructed of material with relatively high thermal conductivity. - A method of bending
ribbon 84 multiple times around a fixture to formribbon 84 intofins 56, is not limited to the embodiments described above in connection withFIGS. 7A and 7B . For example, a fixture other thantube 54 may be employed. Additionally, in addition to, or in place of, chuck 88 and guide 94, other components and/or a person may apply force toribbon 84 to bend it around the fixture. Furthermore, the fixture may have shapes other than that shown inFIGS. 7A and 7B . Moreover, instead of the fixture rotating to bendribbon 84, the fixture may be held stationary andribbon 84 bent around it. - After
ribbon 84 is bent multiple times around a fixture to formribbon 84 intofins 56,ribbon 84 may be joined totube 54 to formtube assembly 39. Whenribbon 84 has been bent around a fixture other thantube 54,ribbon 84 may be removed from the fixture and slid overtube 54. Whenribbon 84 has been bent aroundtube 54,ribbon 84 is positioned aroundtube 54 following bending ofribbon 84. Onceribbon 84 has been bent intofins 56 and positioned aroundtube 54,ribbon 84 may be joined totube 54 by adhesive bonding, metallic bonding, or by expandingtube 54 to create an interference fit withribbon 84. -
Tube 54 may be expanded to create an interference fit withribbon 84 by drawing a mandrel (not shown) through an interior oftube 54. - A method of joining
fins 56 totube 54 is not limited to the embodiments described above in connection withFIGS. 7A and 7B . For example,fins 56 may be formed and joined totube 54 individually. - As is shown in
FIGS. 8A and 8B , afterribbon 84 is bent to formfins 56, acutting tool 98 may be used to shapefins 56 by cutting portions of them off. Consistent with certain embodiments, cuttingtool 98 may be run parallel to acenter axis 100 around whichribbon 84 extends to cut afirst series 102 ofstraight edges 82, aligned with one another in the direction ofcenter axis 100, onfins 56. Subsequently, cuttingtool 98 may be run parallel to centeraxis 100 on an opposite side thereof to cut asecond series 104 ofstraight edges 82, aligned with one another in the direction ofcenter axis 100, onfins 56. As is best seen inFIG. 8B , while cuttingsecond series 104 ofstraight edges 82, cuttingtool 98 may also run parallel tofirst series 102 ofstraight edges 82, to producesecond series 104 ofstraight edges 82 parallel tofirst series 102 ofstraight edges 82. Cuttingtool 98 may be a mechanical cutting tool, such as a saw blade, as is shown inFIGS. 8A and 8B . Alternatively, cuttingtool 98 may be a laser, a torch, a plasma cutter, a hydraulic jet, or any other type of device suited for cuttingfins 56. Additionally, cuttingtool 98 may be used to formstraight edges 82 onfins 56 before or afterfins 56 are joined totube 54. - As is shown in
FIGS. 9A and 9B , aram 106 may also be used to shapefins 56 by bending them. For example, instead of cuttingtool 98,ram 106 may be run parallel to centeraxis 100 to bend outer portions offins 56 over and formstraight edges 82 onfins 56.Ram 106 may be used to formstraight edges 82 onfins 56 before or afterfins 56 are secured totube 54. - Methods other than those described above in connection with
FIGS. 8A, 8B , 9A, and 9B may be employed to providestraight edges 82 onfins 56. Before usingcutting tool 98 or ram 106 to formstraight edges 82 onfins 56, one may joinfins 56 totube 54 to formtube assembly 39 and bendtube tube assembly 39, as is described in greater detail below. Additionally,individual fins 56 with parallel,straight edges 82 may be constructed and attached totube 54 one at a time to formtube assembly 39. -
FIG. 10 illustrates one embodiment of a method that may be employed in the manufacture of a heat exchanger, such asheat exchangers tube assembly 39. This method may include formingtube assembly 39 by joiningfins 56 totube 54.Tube assembly 39 may then be bent into coils including tubing coils 58 or 70 and 74 by employing the method described hereinafter. Aftertube assembly 39 is constructed, anend 108 oftube assembly 39 may be temporarily anchored adjacent afixture 110 by achuck 112.Fixture 110 and chuck 112 may rotate together while aguide 114 stops anouter portion 116 oftube assembly 39 from rotating withfixture 110. While holdingouter portion 116 oftube assembly 39 against rotation, guide 114 may allowouter portion 116 oftube assembly 39 to advance towardfixture 110. Asfixture 110 and chuck 112 rotate, they may drawouter portion 116 oftube assembly 39 towardfixture 110 and bend successive portions oftube assembly 39 againstfixture 110 intocoils 118.Tube assembly 39 may be bent to yielding, such that they take on a new shape in their free states.Tube assembly 39 may be bent directly againstfixture 110. In other words,tube assembly 39 may bear directly againstfixture 110 during bending, as is shown inFIG. 10 . Additionally,tube assembly 39 may be bent indirectly againstfixture 110. In other words,tube assembly 39 may bear against another component supported byfixture 110. For example, as is shown inFIG. 11 , which is discussed in greater detail below,tube assembly 39 may be bent multiple times aroundfixture 110 within a plane. In such cases, the firsttime tube assembly 39 is bent aroundfixture 110,tube assembly 39 would bear directly againstfixture 110. The secondtime tube assembly 39 is bent aroundfixture 110 within the same plane,tube assembly 39 would bear against the portion oftube assembly 39 bent aroundfixture 110 the first time. Thus, the secondtime tube assembly 39 is bent aroundfixture 110 within a plane,tube assembly 39 is bent indirectly againstfixture 110. - As
fixture 110 and chuck 112 rotate, guide 114 may also control the position ofouter portion 116 oftube assembly 39 with respect to anaxis 120 offixture 110 to control the shape ofcoils 118. For example, whilefixture 110 rotates, guide 114 may holdouter portion 116 oftube assembly 39 in one position with respect toaxis 120 to formcoils 118 in radially outwardly extending spirals. Alternatively, whilefixture 110 rotates, guide 114 may moveouter portion 116 oftube assembly 39 with respect toaxis 120 to formcoil 118 in an axially-extending helix. - A method of bending
tube assembly 39 is not limited to the embodiments described above in connection withFIG. 10 . For example,fixture 110 may have different shapes, depending on whatshape coil 118 is desired. Additionally, instead offixture 110 rotating to bendtube assembly 39,fixture 110 may be held stationary andtube assembly 39 bent againstfixture 110. Moreover, in addition to, or in place of,fixture 110,chuck 112, and guide 114, other components and/or a person may apply force totube assembly 39 to bend it. - The methods described above in connection with
FIGS. 9, 10 , and 11 may be implemented tomanufacturer heat exchanger 42, shown inFIGS. 3A-3C .Tube assembly 39 may be constructed by constructingfins 56 and joining them totube 54 with eachfin 56 havingstraight edges 82 parallel to one another on opposite sides oftube 54. Subsequently, as is shown inFIG. 11 , each tube assembly may be bent around afixture 124 multiple times within a plane. This forms at least a portion oftube 54 into tubing coils 58 spiraling radially outwardly. Anouter perimeter 126 of a cross-section offixture 124 may have the form of one rotation of a spiral in order to facilitate formingtube 54 into tubing coils 58 that spiral radially outwardly. - During bending of
tube 54 andfins 56 multiple times within a plane, asheet 128 of material, such as cardboard, stiff paper, plastic, or metal, may be temporarily disposed betweenfins 56 of radially-adjacent spiral coils oftube assembly 39 to prevent radial overlap offins 56 of radially-adjacent spiral coils oftube assembly 39. As can be seen inFIG. 11 ,sheet 128 may supportfins 56 of each spiral coil oftube assembly 39 in spaced relationship withfins 56 of the spiral coil oftube assembly 39 radially inward thereof. Following bending oftube assembly 39 multiple times within a plane to form radially-outwardly extending spiral coils, anysheets 128 temporarily disposed between adjacent spiral coils may be removed from betweenfins 56 of radially-adjacent coils oftube assembly 39. - Using the process described above,
additional tube assemblies 39 may be bent into radially-outwardly extending spirals including tubing coils 58 that spiral radially outwardly.Spacers 46 may be formed in spirals of substantially the same shape as tubing coils 58 of eachtube assembly 39 so bent. AsFIG. 12 illustrates,spacers 46 and coiledtube assemblies 39 may then be stacked in alternation on afixture 122. Eachspacer 46 may be attached tostraight edges 82 offins 56 such as by adhesive or metallic bond. By attaching coiledtube assemblies 39 betweenspacers 46,heat exchanger sections 44 are formed. - A method of
manufacturing heat exchanger 42 is not limited to the embodiments described above. For example,tube assembly 39 may be bent into spiral coils prior to formingstraight edges 82 onfins 56, such as by cuttingfins 56 with cuttingtool 98, or bendingfins 56 withram 106. Additionally, instead ofperimeter 126 of the cross-section offixture 110 having the shape of one rotation of a spiral,fixture 110 may have cross-sections of other shapes, such as circular. Additionally,heat exchanger 42 may be constructed using tools and/or fixtures other than those mentioned above. - Additionally, the methods described above in connection with
FIG. 10 may be implemented to manufactureheat exchanger 80, shown inFIG. 5 .Fins 56 may be constructed and joined to one ormore tubes 54 to form one ormore tube assemblies 39. Eachfin 56 may havestraight edges 82 parallel to one another on opposite sides oftube 54.First section 91 oftube assembly 39 may then be bent parallel tostraight edges 82 offins 56 aroundfixture 110 into a helix extending in a first direction alongaxis 120 to form first set of helical tubing coils 70. Additionally,second section 93 oftube assembly 39 may be bent parallel tostraight edges 82 offins 56 aroundfixture 110 into a helix extending infirst direction 68 to form second set of helical tubing coils 74. In some embodiments,first section 91 oftube assembly 39 andsecond section 93 oftube assembly 39 may be simultaneously bent parallel to one another helically aroundfixture 110, to simultaneously form first set of helical tubing coils 70 and second set of helical tubing coils 74 in alternating positions alongaxis 120 offixture 110. After first set of helical tubing coils 70 and second set of helical tubing coils 74 are formed,first end 79 of first set of helical tubing coils 70 andfirst end 81 of second set of helical tubing coils 74 may be fluidly connected, such as by fluidly connectingconnector 72 therebetween. Additionally, spacers 46 may be formed into helixes of substantially the same shape as first set of helical tubing coils 70 and second set of tubing coils 74. Thesespacers 46 may then be slid betweenfins 56 extending from first set of tubing coils 70 andfins 56 extending from second set of tubing coils 74. Thesespacers 46 may then be attached to thesefins 56 such as by adhesive or metallic bond. - Methods of
manufacturing heat exchangers heat exchangers heat exchangers - Once a heat exchanger, such as
heat exchanger 16,heat exchanger 42,heat exchanger 64, orheat exchanger 80 is constructed, it may be installed inpump housing 12 between inlet opening 20 andconnection port 26 or inpump housing 43 between inlet opening 53 andconnection port 59. For example, a manufacturer may installheat exchanger pump housing 12 withtubing coils 58 extending aroundimpeller rotation axis 18. Consistent with certain embodiments a manufacturer may installheat exchanger 64 orheat exchanger 80 inpump housing 12 with first set of helical tubing coils 70 and second set of helical tubing coils 74 extending aroundimpeller rotation axis 18. Furthermore, a manufacturer may installheat exchanger pump housing 43 withtubing coils 58 extending aroundimpeller rotation axis 51. Consistent with certain embodiments a manufacturer may installheat exchanger 64 orheat exchanger 80 inpump housing 43 with first set of helical tubing coils 70 and second set of helical tubing coils 74 extending aroundimpeller rotation axis 51. - It will be apparent to those skilled in the art that various modifications and variations can be made in the pump, heat exchanger and manufacturing methods without departing from the scope of the disclosure. Other embodiments of the pump, heat exchanger and manufacturing methods will be apparent to those skilled in the art from consideration of the specification and practice of the pump, heat exchanger and manufacturing methods disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims and their equivalents.
Claims (36)
1. A pump, comprising:
an first impeller with impeller blades that extend radially outward;
a pump housing surrounding a radial perimeter of the first impeller and including an inlet opening in fluid communication with the first impeller and a discharge channel; and
a heat exchanger supported within the pump housing between the inlet opening and at least one connection port of the pump housing, wherein the heat exchanger includes one or more tubing coils that extend around an axis.
2. The pump of claim 1 , wherein the pump housing allows rotation of the first impeller around an impeller rotation axis, the heat exchanger is disposed within the discharge channel, and the axis around which the one or more tubing coils of the heat exchanger extend is the impeller rotation axis.
3. The pump of claim 1 , wherein the heat exchanger further includes:
a first tube that forms at least one of the tubing coils;
a second tube that forms at least one of the tubing coils;
wherein a first end of the first tube is disposed adjacent a first end of the second tube; and
wherein a second end of the first tube is disposed adjacent a second end of the second tube.
4. The pump of claim 3 , wherein the heat exchanger further includes:
a first manifold connected to the first end of the first tube and the first end of the second tube; and
a second manifold connected to the second end of the first tube and the second end of the second tube.
5. The pump of claim 3 , wherein at least one tubing coil formed by the first tube is a spiral tubing coil and at least one tubing coil formed by the second tube is a spiral tubing coil.
6. The pump of claim 1 , wherein:
a first section of tube assembly includes one of the tubing coils with fins joined thereto;
a second section of tube assembly includes another of the tubing the tubing coils with fins joined thereto;
the first section of tube assembly and the second section of tube assembly extend substantially parallel to one another with fins of the first section of tube assembly extending toward the second section of tube assembly and fins of the second section of tube assembly extending toward the first section of tube assembly; and
a spacer extending between and substantially parallel to the first section of tube assembly and the second section of tube assembly attaches to fins of the first section of tube assembly and to fins of the second section of tube assembly.
7. The pump of claim 1 , wherein at least one of the tubing coils is a helical tubing coil.
8. The pump of claim 1 , wherein:
the tubing coils include a first set of helical tubing coils that extend in series in a first direction along a central axis;
the tubing coils include a second set of helical tubing coils that also extend in series in the first direction along a central axis;
a first end of the first set of tubing coils is connected to a first end of the second set of helical tubing coils; and
at least a portion of the first set of helical tubing coils and at least a portion of the second set of helical tubing coils extend along a same portion of the central axis.
9. The pump of claim 8 , wherein:
a second end of the first set of helical tubing coils is connected to a first tube ending;
a second end of the second set of helical tubing coils is connected to a second tube ending; and
the first tube ending and the second tube ending are disposed adjacent one another.
10. The pump of claim 9 , wherein at least some tubing coils of the first set of helical tubing coils extend between at least some tubing coils of the second set of helical tubing coils, such that at least some of the tubing coils of the first set of helical tubing coils are disposed in alternating positions with at least some of the tubing coils of the second set of helical tubing coils, along the central axis.
11. The pump of claim 8 , at least some tubing coils of the first set of helical tubing coils extend between at least some tubing coils of the second set of helical tubing coils, such that at least some of the tubing coils of the first set of helical tubing coils are disposed in alternating positions with at least some of the tubing coils of the second set of helical tubing coils, along the central axis.
12. The pump of claim 2 , further comprising:
a second impeller disposed within the discharge channel and rotatable around the impeller rotation axis.
13. The pump of claim 12 , wherein the heat exchanger is disposed between the radial perimeter of the first impeller and the second impeller along flow paths defined by the discharge channel.
14. The pump of claim 13 , wherein the discharge channel defines flow paths from adjacent the radial perimeter of the first impeller to at least one connection port, and wherein radially-outer portions of the one or more tubing coils are disposed closer, along the flow paths, to the radial perimeter of the first impeller than are radially-inner portions of the one or more tubing coils.
15. The pump of claim 2 , wherein the discharge channel defines flow paths from adjacent the radial perimeter of the first impeller to the at least one connection port, and wherein radially-outer portions of the one or more tubing coils are disposed closer along the flow paths to the radial perimeter of the first impeller than are radially-inner portions of the one or more tubing coils.
16. A method of constructing a heat exchanger, comprising:
forming a first section of tube assembly by:
bending a ribbon parallel to its major surfaces multiple times around a fixture to form the ribbon into multiple fins; and
securing the ribbon around a first section of tube with the fins extending from the first section of tube.
17. The method of claim 16 , wherein bending the ribbon includes bending the ribbon into a helix around the fixture.
18. The method of claim 16 , fuirther including:
forming straight edges on the fins.
19. The method of claim 16 , further including:
forming a series of straight edges on the fins by cutting off outer portions of the fins in a manner such that the straight edges are aligned with one another in a direction of a center axis around which the ribbon extends.
20. The method of claim 16 , further including:
forming a series of straight edge on the fins by bending over outer portions of the fins in a manner such that the straight edges are aligned with one another in a direction of a center axis around which the ribbon extends.
21. The method of claim 16 , further including:
forming a series of straight edges on the fins, wherein the straight edges are aligned with one another in a direction of a center axis around which the ribbon extends; and
mounting a spacer to the series of straight edges on the fins.
22. The method of claim 16 , further including:
forming a series of straight edges on the fins, wherein the straight edges are aligned with one another in a direction of a center axis around which the ribbon extends;
bending the first section of tube assembly parallel to the series of straight edges;
bending a spacer into a shape such that at least a portion of the spacer and at least a portion of the first section of tube of the first tube assembly have substantially the same shape; and
mounting a first side of the spacer to the first series of straight edges substantially parallel to a portion of the first section of tube.
23. The method of claim 22 , further including:
forming a second section of tube assembly by joining fins to a second section of tube, wherein the fins attached to the second section of tube have a series of straight edges aligned with one another in an axial direction of the second section of tube;
bending at least a portion of the second section of tube assembly, parallel to the straight edges on the fins of the second section of tube assembly, and into a shape such that at least a portion of the second section of tube assembly and at least a portion of the spacer have substantially the same shape; and
attaching the straight edges of the fins of the second tube assembly to a second side of the spacer, opposite the first side of the spacer, such that at least a portion of the second section of tube extends substantially parallel to at least a portion of the first section of tube.
24. The method of claim 16 , further including:
installing the first section of tube assembly in a pump housing of a pump between an inlet opening and a connection port of the pump housing.
25. The method of claim 24 , further including:
prior to installing the first section of tube assembly in the pump housing, bending the first section of tube assembly to form at least one tubing coil; and
wherein installing the first section of tube assembly in the pump housing includes installing the first section of tube assembly within a discharge channel disposed between the inlet opening and the connection port of the pump housing with the at least one tubing coil extending around an impeller rotation axis of the pump.
26. The method of claim 16 , further including:
forming a first series of straight edges on the fins, wherein the straight edges are aligned with one another in a direction of a center axis around which the ribbon extends; and
forming a second series of straight edges, parallel to the first series of straight edges, on the fins on a side of the center axis opposite the first series of straight edges.
27. The method of claim 26 , further including:
mounting a first spacer to the first series of straight edges; and
mounting a second spacer to the second series of straight edges.
28. The method of claim 16 , further including:
forming a series of straight edges on the fins of the first section of tube assembly, wherein the straight edges are aligned with one another in a direction of a center axis around which the ribbon extends; and
after forming the first section of tube assembly, bending the first section of tube assembly multiple times in a plane to form at least a portion of the first section of tube into a first tubing coil;
forming a second section of tube assembly by; attaching fins to a second section of tube, wherein the fins attached to the second section of tube have a series of straight edges aligned with one another in an axial direction of the second section of tube;
bending the second tube assembly multiple times in a plane to form at least a portion of the second section of tube into a second tubing coil having substantially the same shape as the first tubing coil formed by the first section of tube;
forming a spacer with at least a portion of the spacer having a shape substantially the same as the first tubing coil formed by the first section of tube and the second tubing coil formed by the second section of tube;
attaching the first section of tube assembly to the spacer by attaching the straight edges of the fins of the first section of tube assembly to a first side of the spacer such that the first tubing coil extends substantially parallel to the portion of the spacer having substantially the same shape as the first tubing coil; and
attaching the second section of tube assembly to the spacer by attaching the straight edges of the fins of the second section of tube assembly to a second side of the spacer such that the second tubing coil extends substantially parallel to the portion of the spacer having substantially the same shape as the second tubing coil.
29. The method of claim 28 , wherein attaching the first section of tube assembly to the spacer and attaching the second section of tube assembly to the spacer includes stacking the first section of tube assembly, the spacer, and the second section of tube assembly on a fixture.
30. The method of claim 16 , wherein the fixture is the first section of tube.
31. An assembly, comprising:
a first set of helical tubing coils that extend in series in a first direction along a central axis;
a second set of helical tubing coils that also extend in series in the first direction along the central axis; and
wherein at least some of the tubing coils of the second set of helical tubing coils extend between at least some of the tubing coils of the first set of helical tubing coils, such that at least some of the tubing coils of the first set of helical tubing coils are disposed in alternating positions along the central axis with at least some of the tubing coils of the second set of helical tubing coils.
32. The assembly of claim 31 , wherein:
a first section of tube assembly includes at a least a portion of the first set of helical tubing coils with fins attached thereto;
a second section of tube assembly includes at least a portion of the second set of helical tubing coils with fins attached thereto;
at least a portion of the fins of the first section of tube assembly extend toward the second section of tube assembly;
at least a portion of the fins of the second section of tube assembly extend toward the first section of tube assembly; and
a spacer extends between and substantially parallel to the first section of tube assembly and the second section of tube assembly and attaches to fins of the first section of tube assembly and the second section of tube assembly.
33. The assembly of claim 32 , wherein:
a first end of the first set of helical tubing coils and a first end of the second set of helical tubing coils are fluidly connected;
a second end of the first set of helical tubing coils is fluidly connected to a first tube ending;
a second end of the second set of helical tubing coils is fluidly connected to a second tube ending; and
the first tube ending and the second tube ending are disposed adjacent one another.
34. The assembly of claim 31 , wherein:
a first end of the first set of helical tubing coils and a first end of the second set of helical tubing coils are fluidly connected;
a second end of the first set of helical tubing coils is fluidly connected to a first tube ending;
a second end of the first set of helical tubing coils is fluidly connected to a second tube ending; and
the first tube ending and the second tube ending are disposed adjacent one another.
35. The assembly of claim 31 , further including:
an impeller with impeller blades that extend radially outward;
a pump housing surrounding a radial perimeter of the impeller and including an inlet opening in fluid communication with the impeller and a discharge channel that extends from adjacent the radial perimeter of the impeller to at least one connection port; and
wherein the first set of helical tubing coils and the second set of helical tubing coils are disposed within the pump housing between the inlet opening and the at least one connection port.
36. The assembly of claim 35 , wherein the first set of helical tubing coils and the second set of helical tubing coils extend around the impeller rotation axis.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US11/141,001 US20060275151A1 (en) | 2005-06-01 | 2005-06-01 | Pump and heat exchanger |
DE102006021825A DE102006021825A1 (en) | 2005-06-01 | 2006-05-10 | Pump and heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US11/141,001 US20060275151A1 (en) | 2005-06-01 | 2005-06-01 | Pump and heat exchanger |
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US20060275151A1 true US20060275151A1 (en) | 2006-12-07 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/141,001 Abandoned US20060275151A1 (en) | 2005-06-01 | 2005-06-01 | Pump and heat exchanger |
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US (1) | US20060275151A1 (en) |
DE (1) | DE102006021825A1 (en) |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US20110146952A1 (en) * | 2007-08-17 | 2011-06-23 | Grundfos Management A/S | A heat exchanger |
USD805616S1 (en) * | 2015-04-30 | 2017-12-19 | Samwon Industrial Co., Ltd. | Fin tube assembly for heat exchanger |
US11291184B2 (en) * | 2019-04-16 | 2022-04-05 | Kelly Nienke | Watering tank circulating assembly |
US11255344B2 (en) * | 2019-05-24 | 2022-02-22 | Frideco Ag | Pump device |
US11363739B2 (en) * | 2020-03-27 | 2022-06-14 | Auras Technology Co., Ltd. | Liquid cooling head device |
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Legal Events
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Owner name: CATERPILLAR INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HEINS, KRISTEN CHARLES;MA, JIUBO;PARAMATMUNI, ROHIT KUMAR;AND OTHERS;REEL/FRAME:016634/0379 Effective date: 20050527 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |