US3432091A - Centrifugal fluid cleaners - Google Patents

Centrifugal fluid cleaners Download PDF

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US3432091A
US3432091A US580977A US3432091DA US3432091A US 3432091 A US3432091 A US 3432091A US 580977 A US580977 A US 580977A US 3432091D A US3432091D A US 3432091DA US 3432091 A US3432091 A US 3432091A
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rotor
inlet
fluid
compartment
hub
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US580977A
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Rodney Thomas Beazley
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Federal Mogul Engineering Ltd
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Glacier Metal Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B5/00Other centrifuges
    • B04B5/005Centrifugal separators or filters for fluid circulation systems, e.g. for lubricant oil circulation systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00Pressure lubrication
    • F01M1/10Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F01M2001/1028Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the type of purification
    • F01M2001/1035Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters characterised by the type of purification comprising centrifugal filters

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  • This invention relates to centrifugal fluid cleaners and is concerned with the rotors of such fluid cleaners of the kind in which the rotor has a central hollow hub through which the fluid to be cleaned is delivered to inlet apertures communicating with the interior of the rotor chamber, nd in which the fluid flows from the interior of the rotor chamber through one or more nozzles which are displaced substantially from the axis of rotation of the rotor and are formed so that the fluid ejected from them is ejected in a direction having a substantial tangential component relatively to a circle having the axis of rotation for centre so that the rotor is caused to rotate by the reaction of the jets thus issuing from the nozzles.
  • Usually at least two nozzles are provided and for convenience herein this will be assumed to be the case.
  • the invention is more particularly concerned with rotors for centrifugal fluid cleaners of the kind referred to in which the rotor chamber is divided by a partition into an inlet compartment with which the inlet opening or openings for flow ,of fluid from the hollow hub communicate, and an outlet compartment with which the inlet compartment communicates through a passage or passages," (hereinafter for convenience called the transfer passage) while the nozzles communicate with the outlet compartment.
  • the transfer passage a passage or passages
  • a rotor for a centrifugal cleaner of the kind including a hollow hub through which fluid to be cleaned is delivered to inlet apertures communicating with the interior of the rotor chamber and in which the fluid flows from one end of the interior of the rotor chamber through one or more reaction nozzles arranged to cause rotation of the rotor
  • the'interior of the rotor is divided by an annular partition into a relatively large inlet compartment with which the inlet openings communicate and a relatively small outlet compartment with which the nozzles communicate the inlet and outlet compartments communicate with one another through a transfer passage closely surrounding the hollow hub and the hub carries an annular baflle so disposed as to prevent liquid flowing in a direct path from the inlet openings to the inlet to the transfer passage and to cause such liquid to flow over the outer circumference of the baflle and then inwards before it enters the transfer passage.
  • the transfer passage comprises a tubular member concentric with and spaced from the hub and opening at one end into the outlet compartment while its other end is closed, such tubular member having fluid entry openings in its circumferential wall for the entry into it of fluid from the inlet compartment while its end remote from the outlet compartment makes a substantially fluid tight seal with the bafiie member.
  • the tubular member may be surrounded by a gauze or like filter element somewhat spaced from the tubular member so that the fluid flowing into the entry openings of the transfer passage has to pass through this filter element, which will therefore prevent the passage into the outlet chamber of solid particles of a size which might otherwise block the reaction nozzle or nozzles, as might otherwise occur say during the starting up period when the rotor has not achieved a suflicient rotational speed to extract such particles by centrifugal action.
  • the entry to the transfer passage may be so disposed that the fluid flowing from the inlet compartment into it is caused to flow in a direction having a substantial component towards the inlet opening or openings.
  • the fluid which enters the inlet compartment from the inlet opening or openings deflected radially outwards by the baflie into the outer circumferential area of the inlet compartment but, before it can pass through the transfer passage has its axial direction of flow reversed so that the fluid entering the transfer passage tends to be drawn from an area of the inlet compartment adjacent to the end thereof remote from the inlet openings.
  • FIGURE 1 is a cross-sectional elevation of one construction according to the invention in a plane containing the axis of rotation of the rotor
  • FIGURE 2 is a similar view to FIGURE 1 of a second construction according to the invention.
  • FIGURE 3 is a similar view to FIGURE 1 of a third construction according to the invention.
  • FIGURE 4 is an underneath plan view of the upper part of the rotor shown in FIGURE 1 illustrating a feature which may be applied to that rotor or to the rotor of the construction shown in FIGURE 2 or that shown in FIGURE .3.
  • the centrifugal fluid cleaner comprise-s a housing consisting of a base part 1 and an upper part 2 which have engaging edge portions, as indicated at 3, having associated with them a fluid seal 4 so that the upper part 2 can be removed from the base part 1 when desired.
  • the two parts 1 and 2 of the housing may be secured to one another in a readily detachable manner by any suitable means.
  • Formed in the base part 1 of the housing is an inlet passage 5 for the entry of liquid to be cleaned, this passage communicating by way of a port controlled by a spring pressed valve 6 with the lower end of a vertical passage 7 which in turn communicates with the lower end of the bore of a hollow hub or spindle 8.
  • the lower end of the hub 8 is mounted in a bearing 9 in the base part 1 of the housing while its upper end is mounted in a bearing 10 in the upper part 2 of the housing so that the hub 8 can rotate freely within the housing 1, 2.
  • a rotor drum Secured to the hub 8 is a rotor drum comprising a lower end or base 11 formed to provide two passages or wells 12 carrying at their lower ends reaction nozzles 13, and an upper part 14 constituting the circumferential wall and the upper end of the rotor drum.
  • annular partition wall Arranged within the rotor drum is an annular partition wall comprising 'a wide angle frusto-conical part 15 the lower edge 16 of which engages in a fluid tight manner a spigot on the base 11 as shown while its inner edge is formed integral with an upwardly projecting tubular part 17 spaced from the hub 8 and having formed in its circumferential wall a series of transfer openings 18.
  • the upper end of the tubular projection 17 is closed by an annular cap 19 extending between and making a fluidtight joint with the upper edge of the projection 17 and the circumferential surface of the hub 8, and held in position, for example by a circlip indicated at 20.
  • a filter gauze indicated at 21 Surrounding and slightly spaced from the tubular projection 17 is a filter gauze indicated at 21.
  • the partition wall 15 thus divides the rotor drum into upper and lower compartments 23 and 24 and the hub 8 is provided with inlet openings 22 communicating with the upper compartment 23 while an outlet passage 1A is provided in the base 1 of the body part.
  • Liquid is fed under pressure through the passage 5 and flows through the passage 7, the bore of the hub 8, and the inlet openings 22 into the upper compartment 23 of the rotor drum.
  • the liquid then flows from the upper compartment 23 into the lower compartment 24 by way of the openings :18 and the tubular projection 17 and escapes from the lower compartment 24 by way of the nozzles 13, the reaction of the jets from which causes the rotor drum to rotate rapidly so that the liquid therein is subject to centrifugal force and solid matter in the liquid in the upper compartment is caused to collect on the interior of the wall 14 as shown at 25.
  • the general pattern of flow of the liquid throughout its travel is indicated by arrows, the liquid discharged by the nozzles I13 escaping from the casing 1, 2 through the outlet passage 1A.
  • the under face of the upper end of the part 14 of the rot-or may be provided with a series of radial ribs 14A which are also indicated in dotted line in FIGURE 1, for the purpose of promoting rotation with the rotor of the liquid in the inlet compartment of the rotor, and more especially ensuring adequate rotation of the upper portion of the liquid in the rotor which has only recently entered the inlet compartment of the rotor.
  • the centrifugal fluid cleaner comprises a housing consisting of a base 26 and an upper part 27 in the form of an inverted cup, the base being provided with a cylindrical flange 26A the upper edge of which makes a fluid tight seal, with the assistance of a packing ring 29, with the lower edge portion of the upper part 27.
  • the base 26 is formed to provide an inlet passage 30 for the liquid to be cleaned this passage being formed in a diametrically extending barlike portion of the base which leaves free communication between an outlet passage 31 for cleaned liquid and the chamber enclosed by the base 26 and the upper part 27 of the housing the outlet passage 31 being provided at its lower end with a surrounding flange 32 by which the base 26 can be bolted to the casing of an engine or other apparatus having an aperture to receive the clean oil or other liquid.
  • a hollow boss 26B Formed at the centre of the base 26 is a hollow boss 26B the bore of which communicates with the inlet passage 30 while the boss serves as a support for the lower end of a vertical sp ndle 33 the upper end portion of which is solid while its lower end portion is formed hollow to provide a bore which is in effect a continuation of the inlet passage 30 and terminates in a series of radial ports 34.
  • the upper end of the spindle 33 is supported in the upper end of the part 27 and provided with a nut 35 securing the part 27 to the base 26.
  • Rotatably mounted upon the spindle 33 on bearings 36, 36A is a tubular member 37 the centre part of which is spaced from the spindle 33 to provide a liquid passage and is provided with radial openings 38 constituting inlet openings to the interior of a rotor of which the member 37 constitutes the hub.
  • This rotor comprises upper and lower cup like parts 39, 40 the rim portions of which engage and make a fluid tight seal with one another with the assistance of a sealing ring, the lower cup like part 40 being formed to provide in its lower wall two wells 41 each of which supports a reaction nozzle 42 for the escape of fluid from the rotor in a tangential direction.
  • a member comprising the radially extending baffle part 43 from the edge of which depends a tubular part 43A substantially spaced from the hub 37 and a second tubular part 44 spaced from the hub 37, and from the tubular part 43A and making a fluid tight seal at its upper end with the baffle part 43 and having a wide frusto-conical part at its lower end so that it serves to divide the interior of the rotor into an inlet compartment 45 and an outlet compartment 46 from the latter of which the nozzles 42 lead.
  • the member comprising the parts 43, 43A and 44 is held in position by a compression spring 47 the lower end of which acts on the upper face of the baflle part 43 while its upper end acts on a thrust washer 48.
  • the housing comprising a base 50 formed to provide an inlet passage 51, and a central hollow boss 52 with which the inlet passage 51 communicates and which also forms a support for the lower end of a spindle 53 the upper end of which is supported at the centre of a cuplike upper part 54 which constitutes the upper part of the housing, and has a rim making a fluid tight seal with a cylindrical flange 55 constituting part of the base 50.
  • the rotor comprises a hollow hub 56 the centre part of which surrounds and is spaced from the centre part of the spindle 53 to provide a passage for the flow of fluid from the inlet passage through ports 57 in the spindle to ports 58 adjacent to the upper end of the hollow hub 56 similar to the hub 37 in FIGURE 2.
  • the hollow hub 56 is formed integral with the base part 60 of the rotor which is formed to provide wells 61 from which the reaction nozzles 62 deliver liquid in tangential directions, the upper part of the rotor chamber being constituted by an inverted cup like member 63 and the rotor as a whole being supported rotatably on the spindle 53 by means of bearings 64 and 65.
  • the baflle member comprises an upper tubular part 66 which projects into engagement with the lower surface of the upper part of the rotor chamber and has ports in its wall, an inwardly extending duplex flange 67 engages the hub 55 and a downwardly extending skirt 68, while the dividing wall between the inlet compartment 69' of the rotor chamber is of similar form to that of FIGURE 2 but has the entry openings 70 to the transfer passage 71 near the lower end of the part 68.
  • the parts 66, 67, 68 constitute in effect a baffle which causes the fluid leaving the inlet openings in the part 66 to flow outwards into the outer radial areas of the inlet compartment 69 before it can pass into the entry openings 70 of the transfer passage and hence through this passage into the outlet compartment, while moreover the tubular part 68 also causes the liquid flowing from the entry openings 70 and having a downward axial component as it flows through the inlet compartment 68 to reverse its direction of axial flow and flow upwards into the openings 70 before it can flow downwards again into the outlet compartment.
  • a rotor chamber assembly for a centrifugal cleaner including a hollow hub provided with inlet apertures in its upper portion through which fluid to be cleaned is delivered from the hub to the interior of the rotor chamber at a point adjacent the upper end of the rotor chamber, at least one reaction nozzle disposed adjacent to the lower end of the rotor chamber and arranged to cause rotation of the rotor, an annular partition dividing the interior of the rotor chamber into a relatively large inlet compartment with which the inlet apertures communicate and a relatively small outlet compartment with which the nozzle communicates, while providing a transfer passage near the lower end of the inlet compartment for fluid flow from the inlet compartment into the outlet compartment, said transfer passage closely surrounding the hollow hub, and
  • annular baflie carried by the hub and serving to prevent liquid flowing in a direct path from the inlet openings to the inlet to the transfer passage and to cause such liquid to flow over the outer circumference of the baflle and then inwards before it enters the transfer passage.
  • a rotor chamber assembly for a centrifugal cleaner as claimed in claim 1 including a tubular filter element extending below the baflie member and disposed to cause all fluid flowing from the inlet compartment to the outlet compartment to pass therethrough.
  • a rotor for a centrifugal cleaner as claimed in claim 3 including a filter element surrounding the tubular member and somewhat spaced from the tubular member whereby all fluid flowing to the entry openings of the transfer passage has to pass through said filter element.
  • a rotor for a centrifugal cleaner as claimed in claim 1 in which said baffle comprises a filter for solid particles in the fluid.

Description

March 11, 1969 R. 'r. BEAZLEY 3,432,091
CENTRIFUGAL FLUID CLEANERS Filed Sept. 21, 1966 Sheet of 5 INVENTQR RcbNeY T Ben-u. EY
BY am Wau h/am A'r'roay 5Y3 March 11, 1969 T, BEAZLEY 3,432,091
CENTRIFUGAL FLUID CLEANERS Filed Sept. 21, 1966 Sheet 2 0f 5 O 45 2Q 41 41 42 0 q 26A INVENTOR kouueY T. BEAZL EY ATTORNEEG March 11,- 1969 R. T. BEAZLEY 3,432,091
CENTRIFUGAL- FLUID CLEANERS Filed Sept. 21,- 1966 Sheet 3 of5 70 a 77 A I 67 FIG. 3. 51
INVENTOR RODNEY T BEAzLEY United States Patent 3,432,091 CENTRIFUGAL FLUID CLEANERS Rodney Thomas Beazley, Maidstone, England, assignor to The Glacier Metal Company Limited, Wembley, England, a company of Great Britain Filed Sept. 21, 1966, Ser. No. 580,977 Claims priority, application Great Britain, Sept. 22, 1965,
40,507 65 US. Cl. 233-1 Int. Cl. B04b 3/00 5 Claims ABSTRACT OF THE DISCLOSURE This invention relates to centrifugal fluid cleaners and is concerned with the rotors of such fluid cleaners of the kind in which the rotor has a central hollow hub through which the fluid to be cleaned is delivered to inlet apertures communicating with the interior of the rotor chamber, nd in which the fluid flows from the interior of the rotor chamber through one or more nozzles which are displaced substantially from the axis of rotation of the rotor and are formed so that the fluid ejected from them is ejected in a direction having a substantial tangential component relatively to a circle having the axis of rotation for centre so that the rotor is caused to rotate by the reaction of the jets thus issuing from the nozzles. Usually at least two nozzles are provided and for convenience herein this will be assumed to be the case.
, The invention is more particularly concerned with rotors for centrifugal fluid cleaners of the kind referred to in which the rotor chamber is divided by a partition into an inlet compartment with which the inlet opening or openings for flow ,of fluid from the hollow hub communicate, and an outlet compartment with which the inlet compartment communicates through a passage or passages," (hereinafter for convenience called the transfer passage) while the nozzles communicate with the outlet compartment. Thus, during operation the fluid flows from ,thehollow hub into the inlet compartment and thence through the transfer passage into the outlet compartment and thence out of the outlet compartment through the nozzles.
It is an object of the present invention to provide an improved form of rotor for a centrifugal cleaner of the kind referred to in which the characteristics of the fluid flow through the rotor chamber will tend to be such as to provide for good separation of solid material from the fluid, in a manner permitting substantial build-up of such solid material on the wall of the inlet compartment, while preventing the carrying through of solids to the outlet compartment and hence to the nozzles.
To this end according to the present invention in a rotor for a centrifugal cleaner of the kind including a hollow hub through which fluid to be cleaned is delivered to inlet apertures communicating with the interior of the rotor chamber and in which the fluid flows from one end of the interior of the rotor chamber through one or more reaction nozzles arranged to cause rotation of the rotor, the'interior of the rotor is divided by an annular partition into a relatively large inlet compartment with which the inlet openings communicate and a relatively small outlet compartment with which the nozzles communicate the inlet and outlet compartments communicate with one another through a transfer passage closely surrounding the hollow hub and the hub carries an annular baflle so disposed as to prevent liquid flowing in a direct path from the inlet openings to the inlet to the transfer passage and to cause such liquid to flow over the outer circumference of the baflle and then inwards before it enters the transfer passage.
In certain constructions according to the invention the transfer passage comprises a tubular member concentric with and spaced from the hub and opening at one end into the outlet compartment while its other end is closed, such tubular member having fluid entry openings in its circumferential wall for the entry into it of fluid from the inlet compartment while its end remote from the outlet compartment makes a substantially fluid tight seal with the bafiie member.
Moreover in such a construction the tubular member may be surrounded by a gauze or like filter element somewhat spaced from the tubular member so that the fluid flowing into the entry openings of the transfer passage has to pass through this filter element, which will therefore prevent the passage into the outlet chamber of solid particles of a size which might otherwise block the reaction nozzle or nozzles, as might otherwise occur say during the starting up period when the rotor has not achieved a suflicient rotational speed to extract such particles by centrifugal action.
In other constructions according to the invention the entry to the transfer passage may be so disposed that the fluid flowing from the inlet compartment into it is caused to flow in a direction having a substantial component towards the inlet opening or openings. Thus not only is the fluid which enters the inlet compartment from the inlet opening or openings deflected radially outwards by the baflie into the outer circumferential area of the inlet compartment but, before it can pass through the transfer passage has its axial direction of flow reversed so that the fluid entering the transfer passage tends to be drawn from an area of the inlet compartment adjacent to the end thereof remote from the inlet openings.
Three constructions according to the invention are shown by way of example in the accompanying drawings in which:
FIGURE 1 is a cross-sectional elevation of one construction according to the invention in a plane containing the axis of rotation of the rotor,
FIGURE 2 is a similar view to FIGURE 1 of a second construction according to the invention,
FIGURE 3 is a similar view to FIGURE 1 of a third construction according to the invention, and
FIGURE 4 is an underneath plan view of the upper part of the rotor shown in FIGURE 1 illustrating a feature which may be applied to that rotor or to the rotor of the construction shown in FIGURE 2 or that shown in FIGURE .3.
In the construction illustrated in FIGURE 1 and FIG- URE 4 the centrifugal fluid cleaner comprise-s a housing consisting of a base part 1 and an upper part 2 which have engaging edge portions, as indicated at 3, having associated with them a fluid seal 4 so that the upper part 2 can be removed from the base part 1 when desired. The two parts 1 and 2 of the housing may be secured to one another in a readily detachable manner by any suitable means. Formed in the base part 1 of the housing is an inlet passage 5 for the entry of liquid to be cleaned, this passage communicating by way of a port controlled by a spring pressed valve 6 with the lower end of a vertical passage 7 which in turn communicates with the lower end of the bore of a hollow hub or spindle 8. The lower end of the hub 8 is mounted in a bearing 9 in the base part 1 of the housing while its upper end is mounted in a bearing 10 in the upper part 2 of the housing so that the hub 8 can rotate freely within the housing 1, 2. Secured to the hub 8 is a rotor drum comprising a lower end or base 11 formed to provide two passages or wells 12 carrying at their lower ends reaction nozzles 13, and an upper part 14 constituting the circumferential wall and the upper end of the rotor drum.
Arranged within the rotor drum is an annular partition wall comprising 'a wide angle frusto-conical part 15 the lower edge 16 of which engages in a fluid tight manner a spigot on the base 11 as shown while its inner edge is formed integral with an upwardly projecting tubular part 17 spaced from the hub 8 and having formed in its circumferential wall a series of transfer openings 18. The upper end of the tubular projection 17 is closed by an annular cap 19 extending between and making a fluidtight joint with the upper edge of the projection 17 and the circumferential surface of the hub 8, and held in position, for example by a circlip indicated at 20. Surrounding and slightly spaced from the tubular projection 17 is a filter gauze indicated at 21.
The partition wall 15 thus divides the rotor drum into upper and lower compartments 23 and 24 and the hub 8 is provided with inlet openings 22 communicating with the upper compartment 23 while an outlet passage 1A is provided in the base 1 of the body part.
The operation of the device is as follows:
Liquid is fed under pressure through the passage 5 and flows through the passage 7, the bore of the hub 8, and the inlet openings 22 into the upper compartment 23 of the rotor drum. The liquid then flows from the upper compartment 23 into the lower compartment 24 by way of the openings :18 and the tubular projection 17 and escapes from the lower compartment 24 by way of the nozzles 13, the reaction of the jets from which causes the rotor drum to rotate rapidly so that the liquid therein is subject to centrifugal force and solid matter in the liquid in the upper compartment is caused to collect on the interior of the wall 14 as shown at 25. The general pattern of flow of the liquid throughout its travel is indicated by arrows, the liquid discharged by the nozzles I13 escaping from the casing 1, 2 through the outlet passage 1A.
As shown in FIGURE 4 the under face of the upper end of the part 14 of the rot-or may be provided with a series of radial ribs 14A which are also indicated in dotted line in FIGURE 1, for the purpose of promoting rotation with the rotor of the liquid in the inlet compartment of the rotor, and more especially ensuring adequate rotation of the upper portion of the liquid in the rotor which has only recently entered the inlet compartment of the rotor.
In the construction shown in FIGURE 2 the centrifugal fluid cleaner comprises a housing consisting of a base 26 and an upper part 27 in the form of an inverted cup, the base being provided with a cylindrical flange 26A the upper edge of which makes a fluid tight seal, with the assistance of a packing ring 29, with the lower edge portion of the upper part 27. The base 26 is formed to provide an inlet passage 30 for the liquid to be cleaned this passage being formed in a diametrically extending barlike portion of the base which leaves free communication between an outlet passage 31 for cleaned liquid and the chamber enclosed by the base 26 and the upper part 27 of the housing the outlet passage 31 being provided at its lower end with a surrounding flange 32 by which the base 26 can be bolted to the casing of an engine or other apparatus having an aperture to receive the clean oil or other liquid. Formed at the centre of the base 26 is a hollow boss 26B the bore of which communicates with the inlet passage 30 while the boss serves as a support for the lower end of a vertical sp ndle 33 the upper end portion of which is solid while its lower end portion is formed hollow to provide a bore which is in effect a continuation of the inlet passage 30 and terminates in a series of radial ports 34. The upper end of the spindle 33 is supported in the upper end of the part 27 and provided with a nut 35 securing the part 27 to the base 26.
Rotatably mounted upon the spindle 33 on bearings 36, 36A is a tubular member 37 the centre part of which is spaced from the spindle 33 to provide a liquid passage and is provided with radial openings 38 constituting inlet openings to the interior of a rotor of which the member 37 constitutes the hub. This rotor comprises upper and lower cup like parts 39, 40 the rim portions of which engage and make a fluid tight seal with one another with the assistance of a sealing ring, the lower cup like part 40 being formed to provide in its lower wall two wells 41 each of which supports a reaction nozzle 42 for the escape of fluid from the rotor in a tangential direction. Mounted upon the hollow hub 37 so as to be co-axial therewith is a member comprising the radially extending baffle part 43 from the edge of which depends a tubular part 43A substantially spaced from the hub 37 and a second tubular part 44 spaced from the hub 37, and from the tubular part 43A and making a fluid tight seal at its upper end with the baffle part 43 and having a wide frusto-conical part at its lower end so that it serves to divide the interior of the rotor into an inlet compartment 45 and an outlet compartment 46 from the latter of which the nozzles 42 lead. The member comprising the parts 43, 43A and 44, is held in position by a compression spring 47 the lower end of which acts on the upper face of the baflle part 43 while its upper end acts on a thrust washer 48.
It will be seen that in this construction the liquid to be cleaned enters the hollow hub 37 adjacent to its lower end and flows therefrom into the inlet compartment 45 through the inlet openings 38 and, owing to the presence of the baflle part 43, 43A has then to flow outwards into the outer circumferential areas of the inlet compartment 45 before it can flow into the entry to the transfer passage constituted by the annular space between the parts 43A and 44 and thence from the upper end of this annular space through ports 44A into the annular space between the part 44 and the hub 37 and thus into the outlet compartment 46 and through the nozzles 42. It will moreover be seen that, before it can enter the transfer passage between the ports 43A and 44 the fluid which has hitherto had a component of axial flow in the downward direction has to have its axial component of direction reversed so that it flows towards the inlet openings 38, the arrangements being such that the fluid entering the transfer passage thus tends to be drawn from the lower outer circumferential areas of the inlet compartments 45.
In the construction shown in FIGURE 3 the general 7 construction and arrangement of the housing, apart from differences in dimensions and detail is the same as that of the construction shown in FIGURE 2, the housing comprising a base 50 formed to provide an inlet passage 51, and a central hollow boss 52 with which the inlet passage 51 communicates and which also forms a support for the lower end of a spindle 53 the upper end of which is supported at the centre of a cuplike upper part 54 which constitutes the upper part of the housing, and has a rim making a fluid tight seal with a cylindrical flange 55 constituting part of the base 50. In this construction the rotor comprises a hollow hub 56 the centre part of which surrounds and is spaced from the centre part of the spindle 53 to provide a passage for the flow of fluid from the inlet passage through ports 57 in the spindle to ports 58 adjacent to the upper end of the hollow hub 56 similar to the hub 37 in FIGURE 2. In the construction shown in FIGURE 3 the hollow hub 56 is formed integral with the base part 60 of the rotor which is formed to provide wells 61 from which the reaction nozzles 62 deliver liquid in tangential directions, the upper part of the rotor chamber being constituted by an inverted cup like member 63 and the rotor as a whole being supported rotatably on the spindle 53 by means of bearings 64 and 65. As Will be seen in this construction the baflle member comprises an upper tubular part 66 which projects into engagement with the lower surface of the upper part of the rotor chamber and has ports in its wall, an inwardly extending duplex flange 67 engages the hub 55 and a downwardly extending skirt 68, while the dividing wall between the inlet compartment 69' of the rotor chamber is of similar form to that of FIGURE 2 but has the entry openings 70 to the transfer passage 71 near the lower end of the part 68.
It will be seen that the parts 66, 67, 68 constitute in effect a baffle which causes the fluid leaving the inlet openings in the part 66 to flow outwards into the outer radial areas of the inlet compartment 69 before it can pass into the entry openings 70 of the transfer passage and hence through this passage into the outlet compartment, while moreover the tubular part 68 also causes the liquid flowing from the entry openings 70 and having a downward axial component as it flows through the inlet compartment 68 to reverse its direction of axial flow and flow upwards into the openings 70 before it can flow downwards again into the outlet compartment.
What I claim as my invention and desire to secure by Letters Patent is:
1. A rotor chamber assembly for a centrifugal cleaner including a hollow hub provided with inlet apertures in its upper portion through which fluid to be cleaned is delivered from the hub to the interior of the rotor chamber at a point adjacent the upper end of the rotor chamber, at least one reaction nozzle disposed adjacent to the lower end of the rotor chamber and arranged to cause rotation of the rotor, an annular partition dividing the interior of the rotor chamber into a relatively large inlet compartment with which the inlet apertures communicate and a relatively small outlet compartment with which the nozzle communicates, while providing a transfer passage near the lower end of the inlet compartment for fluid flow from the inlet compartment into the outlet compartment, said transfer passage closely surrounding the hollow hub, and
an annular baflie carried by the hub and serving to prevent liquid flowing in a direct path from the inlet openings to the inlet to the transfer passage and to cause such liquid to flow over the outer circumference of the baflle and then inwards before it enters the transfer passage.
2. A rotor chamber assembly for a centrifugal cleaner as claimed in claim 1 including a tubular filter element extending below the baflie member and disposed to cause all fluid flowing from the inlet compartment to the outlet compartment to pass therethrough.
3. A rotor for the centrifugal cleaner as claimed in claim 1 in which the transfer passage comprises a tubular member concentric with and spaced from the hub and opening at one end into the outlet compartment while its end remote from the outlet compartment makes a substantially fluid tight seal with the baflle member.
4. A rotor for a centrifugal cleaner as claimed in claim 3 including a filter element surrounding the tubular member and somewhat spaced from the tubular member whereby all fluid flowing to the entry openings of the transfer passage has to pass through said filter element.
5. A rotor for a centrifugal cleaner as claimed in claim 1 in which said baffle comprises a filter for solid particles in the fluid.
References Cited UNITED STATES PATENTS 2,733,855 2/1956 McCoy 233-23 2,750,107 6/1956 More 233-2 2,755,992 7/1956 Tait et al 233-23 2,792,172 5/1957 Tait 233-2 FOREIGN PATENTS 1,089,071 9/1954 France.
OTHER REFERENCES German Application 1,105,351, Bernhard, April 1961. German Application 1,151,222, Hoferer, July 1963.
HENRY T. KLINKSIEK, Primary Examiner.
US Cl. X.R. 233-23
US580977A 1965-09-22 1966-09-21 Centrifugal fluid cleaners Expired - Lifetime US3432091A (en)

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GB (1) GB1089355A (en)

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762633A (en) * 1972-04-06 1973-10-02 Tokyo Roki Kk Rotor for reaction rotary oil filter
US3791576A (en) * 1972-01-10 1974-02-12 Sulzer Ag Centrifuge
US4046315A (en) * 1975-10-23 1977-09-06 The Weatherhead Company Centrifugal separator with discharge pump
US4106689A (en) * 1977-04-06 1978-08-15 The Weatherhead Company Disposable centrifugal separator
US4165032A (en) * 1977-06-17 1979-08-21 Dana Corporation Disposable centrifugal separator with baffle means
DE2905645A1 (en) * 1979-02-14 1980-08-28 Glacier Metal Co Ltd Disposable centrifugal separator for oil contaminants - has hollow rotor mounted in one chamber defined by shroud and defining second chamber
US4230581A (en) * 1976-03-24 1980-10-28 The Glacier Metal Company, Limited Centrifugal separators
WO1983002406A1 (en) * 1982-01-19 1983-07-21 Plc Ae Centrifugal separator
US4492631A (en) * 1982-01-19 1985-01-08 Ae Plc Centrifugal separator
US4498898A (en) * 1982-04-16 1985-02-12 Ae Plc Centrifugal separator
US4787975A (en) * 1985-02-26 1988-11-29 Ae Plc Disposable cartridges for centrifugal separators
US5674392A (en) * 1994-10-19 1997-10-07 Moatti Filtration S.A. Treatment assembly for treating a fluid by filtering and centrifuging
US5707519A (en) * 1996-11-27 1998-01-13 Caterpillar Inc. Centrifugal oil filter with particle retention
US5779618A (en) * 1994-12-22 1998-07-14 Komatsu Ltd. Centrifugal separating filter
US5904841A (en) * 1995-01-12 1999-05-18 The Glacier Metal Company Limited Fluid circulation centrifugal cleaner with pressure regulator
US6017300A (en) * 1998-08-19 2000-01-25 Fleetguard, Inc. High performance soot removing centrifuge with impulse turbine
US6019717A (en) * 1998-08-19 2000-02-01 Fleetguard, Inc. Nozzle inlet enhancement for a high speed turbine-driven centrifuge
US6074336A (en) * 1996-03-19 2000-06-13 The Glacier Metal Company Limited Separator with control valve and interlock device
US6213929B1 (en) * 1998-09-25 2001-04-10 Analytical Engineering, Inc. Motor driven centrifugal filter
US6224531B1 (en) * 1997-04-16 2001-05-01 Filterwerk Mann & Hummel Gmbh Rotor for a free jet centrifuge having an internal guiding element
US6234949B1 (en) * 1997-02-21 2001-05-22 Federal-Mogul Engineering Limited Centrifugal separator with one or more internal contaminant barriers
US6238331B1 (en) * 1997-09-03 2001-05-29 Filterwerk Mann + Hummel Gmbh Centrifugal separator with separation funnel
US6261455B1 (en) 1998-10-21 2001-07-17 Baldwin Filters, Inc. Centrifuge cartridge for removing soot from oil in vehicle engine applications
US6312372B1 (en) * 1999-01-27 2001-11-06 Alfa Laval Ab Outlet of a centrifugal separator having a reaction driven rotor
US6364822B1 (en) 2000-12-07 2002-04-02 Fleetguard, Inc. Hero-turbine centrifuge with drainage enhancing baffle devices
US6428700B1 (en) 2000-09-06 2002-08-06 Baldwin Filters, Inc. Disposable centrifuge cartridge backed up by reusable cartridge casing in a centrifugal filter for removing soot from engine oil
US6511596B1 (en) * 1997-09-17 2003-01-28 Christianus J. Bogers Apparatus for cleaning liquids
US6517475B1 (en) 1998-09-25 2003-02-11 Baldwin Filters, Inc. Centrifugal filter for removing soot from engine oil
US6520902B1 (en) 1998-10-21 2003-02-18 Baldwin Filters, Inc. Centrifuge cartridge for removing soot from engine oil
US6579218B1 (en) 1998-09-25 2003-06-17 Analytical Engineering, Inc. Centrifugal filter utilizing a partial vacuum condition to effect reduced air drag on the centrifuge rotor
US6599229B1 (en) * 2002-02-27 2003-07-29 Fleetguard, Inc. Air-assisted drain with pressure cutoff valve
EP1340547A2 (en) * 2002-02-27 2003-09-03 Fleetguard, Inc. A fluid separation centrifuge
US6893389B1 (en) 2002-09-26 2005-05-17 Fleetguard, Inc. Disposable centrifuge with molded gear drive and impulse turbine
US20050133466A1 (en) * 2003-12-19 2005-06-23 Honeywell International Inc. Multi-stage centrifugal debris trap
US20050187091A1 (en) * 2004-02-25 2005-08-25 South Kevin C. Disposable centrifuge rotor
US20050199533A1 (en) * 2004-03-15 2005-09-15 Mann & Hummel Gmbh Centrifuge purification filter apparatus and method
US20060240965A1 (en) * 2005-04-25 2006-10-26 Herman Peter K Hero-turbine centrifuge with flow-isolated collection chamber
US20080220957A1 (en) * 2005-04-11 2008-09-11 Herman Peter K Centrifuge rotor-detection oil-shutoff device
US20080296212A1 (en) * 2005-12-22 2008-12-04 Dieter Baumann Centrifuge For Cleaning a Liquid
US20090137376A1 (en) * 2007-11-26 2009-05-28 Patel Vipul P Oil centrifuge
US20090139921A1 (en) * 2004-11-08 2009-06-04 Eni S.P.A. Continuous porous bed centrifuge
US20110011795A1 (en) * 2009-07-15 2011-01-20 Hoff William D Fluid pressure driven centrifuge apparatus
US8540613B2 (en) * 2010-03-11 2013-09-24 Mann +Hummel GmbH Centrifugal separator with protected bearing
US20140378289A1 (en) * 2012-03-12 2014-12-25 Marco Schweikart Oil Cleaning Device of an Engine Oil Circuit
US9333516B2 (en) 2010-03-22 2016-05-10 Alfa Laval Corporate Ab Centrifugal separator having a support element and bearing around portions of a spindle
US20190176066A1 (en) * 2017-12-08 2019-06-13 Mann+Hummel Gmbh Filter Assembly
US20220349324A1 (en) * 2019-06-12 2022-11-03 Innio Jenbacher Gmbh & Co Og Internal combustion engine

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1457435A (en) * 1973-01-13 1976-12-01 Hokuetsu Kogyo Co Compressor arrangement including an oil-injection-type rotary compressor having a centrifugal water separator
GB2153711A (en) * 1984-02-10 1985-08-29 Pa Consulting Services Tubular bowl centrifuge
US4585558A (en) * 1984-09-19 1986-04-29 Foster-Miller, Inc. Separation system
US5575912A (en) * 1995-01-25 1996-11-19 Fleetguard, Inc. Self-driven, cone-stack type centrifuge
US6183407B1 (en) 1998-04-02 2001-02-06 Alfa Laval Ab Centrifugal separator having axially-extending, angled separation discs
US6210311B1 (en) * 1998-09-25 2001-04-03 Analytical Engineering, Inc. Turbine driven centrifugal filter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1089071A (en) * 1952-12-19 1955-03-14 Glacier Co Ltd Centrifugal filter which can be used in particular to rid an oil of its solid impurities
US2733855A (en) * 1956-02-07 Multistage
US2750107A (en) * 1952-10-02 1956-06-12 Glacier Co Ltd Centrifugal oil cleaner, including a cylindrical filter
US2755992A (en) * 1953-10-19 1956-07-24 Glacier Co Ltd Centrifugal separators
US2792172A (en) * 1953-03-03 1957-05-14 Glacier Co Ltd Centrifugal filters

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733855A (en) * 1956-02-07 Multistage
US2750107A (en) * 1952-10-02 1956-06-12 Glacier Co Ltd Centrifugal oil cleaner, including a cylindrical filter
FR1089071A (en) * 1952-12-19 1955-03-14 Glacier Co Ltd Centrifugal filter which can be used in particular to rid an oil of its solid impurities
US2792172A (en) * 1953-03-03 1957-05-14 Glacier Co Ltd Centrifugal filters
US2755992A (en) * 1953-10-19 1956-07-24 Glacier Co Ltd Centrifugal separators

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3791576A (en) * 1972-01-10 1974-02-12 Sulzer Ag Centrifuge
US3762633A (en) * 1972-04-06 1973-10-02 Tokyo Roki Kk Rotor for reaction rotary oil filter
US4046315A (en) * 1975-10-23 1977-09-06 The Weatherhead Company Centrifugal separator with discharge pump
US4230581A (en) * 1976-03-24 1980-10-28 The Glacier Metal Company, Limited Centrifugal separators
US4106689A (en) * 1977-04-06 1978-08-15 The Weatherhead Company Disposable centrifugal separator
US4165032A (en) * 1977-06-17 1979-08-21 Dana Corporation Disposable centrifugal separator with baffle means
DE2905645A1 (en) * 1979-02-14 1980-08-28 Glacier Metal Co Ltd Disposable centrifugal separator for oil contaminants - has hollow rotor mounted in one chamber defined by shroud and defining second chamber
WO1983002406A1 (en) * 1982-01-19 1983-07-21 Plc Ae Centrifugal separator
US4492631A (en) * 1982-01-19 1985-01-08 Ae Plc Centrifugal separator
US4498898A (en) * 1982-04-16 1985-02-12 Ae Plc Centrifugal separator
US4787975A (en) * 1985-02-26 1988-11-29 Ae Plc Disposable cartridges for centrifugal separators
US5674392A (en) * 1994-10-19 1997-10-07 Moatti Filtration S.A. Treatment assembly for treating a fluid by filtering and centrifuging
US5779618A (en) * 1994-12-22 1998-07-14 Komatsu Ltd. Centrifugal separating filter
US5904841A (en) * 1995-01-12 1999-05-18 The Glacier Metal Company Limited Fluid circulation centrifugal cleaner with pressure regulator
US6074336A (en) * 1996-03-19 2000-06-13 The Glacier Metal Company Limited Separator with control valve and interlock device
US5707519A (en) * 1996-11-27 1998-01-13 Caterpillar Inc. Centrifugal oil filter with particle retention
US6234949B1 (en) * 1997-02-21 2001-05-22 Federal-Mogul Engineering Limited Centrifugal separator with one or more internal contaminant barriers
USRE38855E1 (en) 1997-02-21 2005-10-25 Filterwerk Mann & Hummel Gmbh Centrifugal separator with one or more internal contaminant barriers
US6224531B1 (en) * 1997-04-16 2001-05-01 Filterwerk Mann & Hummel Gmbh Rotor for a free jet centrifuge having an internal guiding element
US6238331B1 (en) * 1997-09-03 2001-05-29 Filterwerk Mann + Hummel Gmbh Centrifugal separator with separation funnel
US6511596B1 (en) * 1997-09-17 2003-01-28 Christianus J. Bogers Apparatus for cleaning liquids
US6019717A (en) * 1998-08-19 2000-02-01 Fleetguard, Inc. Nozzle inlet enhancement for a high speed turbine-driven centrifuge
US6017300A (en) * 1998-08-19 2000-01-25 Fleetguard, Inc. High performance soot removing centrifuge with impulse turbine
US6213929B1 (en) * 1998-09-25 2001-04-10 Analytical Engineering, Inc. Motor driven centrifugal filter
US6579218B1 (en) 1998-09-25 2003-06-17 Analytical Engineering, Inc. Centrifugal filter utilizing a partial vacuum condition to effect reduced air drag on the centrifuge rotor
US6517475B1 (en) 1998-09-25 2003-02-11 Baldwin Filters, Inc. Centrifugal filter for removing soot from engine oil
US6520902B1 (en) 1998-10-21 2003-02-18 Baldwin Filters, Inc. Centrifuge cartridge for removing soot from engine oil
US6296765B1 (en) 1998-10-21 2001-10-02 Baldwin Filters, Inc. Centrifuge housing for receiving centrifuge cartridge and method for removing soot from engine oil
US6261455B1 (en) 1998-10-21 2001-07-17 Baldwin Filters, Inc. Centrifuge cartridge for removing soot from oil in vehicle engine applications
US6312372B1 (en) * 1999-01-27 2001-11-06 Alfa Laval Ab Outlet of a centrifugal separator having a reaction driven rotor
US6428700B1 (en) 2000-09-06 2002-08-06 Baldwin Filters, Inc. Disposable centrifuge cartridge backed up by reusable cartridge casing in a centrifugal filter for removing soot from engine oil
US6364822B1 (en) 2000-12-07 2002-04-02 Fleetguard, Inc. Hero-turbine centrifuge with drainage enhancing baffle devices
US6599229B1 (en) * 2002-02-27 2003-07-29 Fleetguard, Inc. Air-assisted drain with pressure cutoff valve
EP1340547A2 (en) * 2002-02-27 2003-09-03 Fleetguard, Inc. A fluid separation centrifuge
EP1340547A3 (en) * 2002-02-27 2005-09-07 Fleetguard, Inc. A fluid separation centrifuge
CN1309443C (en) * 2002-02-27 2007-04-11 弗里特加德公司 Air aided exhausting pipeline with pressure stop valve
US6893389B1 (en) 2002-09-26 2005-05-17 Fleetguard, Inc. Disposable centrifuge with molded gear drive and impulse turbine
US7175771B2 (en) 2003-12-19 2007-02-13 Honeywell International, Inc. Multi-stage centrifugal debris trap
US20050133466A1 (en) * 2003-12-19 2005-06-23 Honeywell International Inc. Multi-stage centrifugal debris trap
US20050187091A1 (en) * 2004-02-25 2005-08-25 South Kevin C. Disposable centrifuge rotor
US7182724B2 (en) * 2004-02-25 2007-02-27 Fleetguard, Inc. Disposable centrifuge rotor
US20050199533A1 (en) * 2004-03-15 2005-09-15 Mann & Hummel Gmbh Centrifuge purification filter apparatus and method
US7708681B2 (en) * 2004-11-08 2010-05-04 Eni S.P.A. Continuous porous bed centrifuge
US20090139921A1 (en) * 2004-11-08 2009-06-04 Eni S.P.A. Continuous porous bed centrifuge
US7871364B2 (en) * 2005-04-11 2011-01-18 Fleetguard, Inc. Centrifuge rotor-detection oil-shutoff device
US20080220957A1 (en) * 2005-04-11 2008-09-11 Herman Peter K Centrifuge rotor-detection oil-shutoff device
US7377893B2 (en) * 2005-04-25 2008-05-27 Fleetguard, Inc. Hero-turbine centrifuge with flow-isolated collection chamber
WO2006116211A3 (en) * 2005-04-25 2007-05-03 Fleetguard Inc Hero-turbine centrifuge with flow-isolated collection chamber
WO2006116211A2 (en) * 2005-04-25 2006-11-02 Fleetguard, Inc. Hero-turbine centrifuge with flow-isolated collection chamber
CN101163552B (en) * 2005-04-25 2011-01-12 弗里特加德公司 Hero-turbine centrifuge with flow-isolated collection chamber
US20060240965A1 (en) * 2005-04-25 2006-10-26 Herman Peter K Hero-turbine centrifuge with flow-isolated collection chamber
US7959547B2 (en) * 2005-12-22 2011-06-14 Hengst Gmbh & Co., Kg Centrifuge for cleaning a liquid
US20080296212A1 (en) * 2005-12-22 2008-12-04 Dieter Baumann Centrifuge For Cleaning a Liquid
US8021290B2 (en) * 2007-11-26 2011-09-20 Honeywell International Inc. Oil centrifuge for extracting particulates from a fluid using centrifugal force
US20090137376A1 (en) * 2007-11-26 2009-05-28 Patel Vipul P Oil centrifuge
US8956271B2 (en) 2007-11-26 2015-02-17 Fram Group Ip Llc Method for removing particulates from a fluid
US20110011795A1 (en) * 2009-07-15 2011-01-20 Hoff William D Fluid pressure driven centrifuge apparatus
US8540613B2 (en) * 2010-03-11 2013-09-24 Mann +Hummel GmbH Centrifugal separator with protected bearing
US9333516B2 (en) 2010-03-22 2016-05-10 Alfa Laval Corporate Ab Centrifugal separator having a support element and bearing around portions of a spindle
US20140378289A1 (en) * 2012-03-12 2014-12-25 Marco Schweikart Oil Cleaning Device of an Engine Oil Circuit
US20190176066A1 (en) * 2017-12-08 2019-06-13 Mann+Hummel Gmbh Filter Assembly
US10981094B2 (en) * 2017-12-08 2021-04-20 Mann+Hummel Gmbh Filter assembly with a pressure actuated valve assembly that permits air flow into a rotary vessel
US20220349324A1 (en) * 2019-06-12 2022-11-03 Innio Jenbacher Gmbh & Co Og Internal combustion engine

Also Published As

Publication number Publication date
DE1532699A1 (en) 1970-03-12
GB1089355A (en) 1967-11-01
DE1532699B2 (en) 1976-07-08

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