US2811219A - Device for separating air or gas from motor fuel - Google Patents
Device for separating air or gas from motor fuel Download PDFInfo
- Publication number
- US2811219A US2811219A US552172A US55217255A US2811219A US 2811219 A US2811219 A US 2811219A US 552172 A US552172 A US 552172A US 55217255 A US55217255 A US 55217255A US 2811219 A US2811219 A US 2811219A
- Authority
- US
- United States
- Prior art keywords
- fuel
- cylinder
- gas
- air
- wall
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
- B01D19/0057—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D37/00—Arrangements in connection with fuel supply for power plant
- B64D37/34—Conditioning fuel, e.g. heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2931—Diverse fluid containing pressure systems
- Y10T137/3003—Fluid separating traps or vents
- Y10T137/3084—Discriminating outlet for gas
- Y10T137/309—Fluid sensing valve
- Y10T137/3099—Float responsive
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7287—Liquid level responsive or maintaining systems
- Y10T137/7293—Liquid excluding devices for gas inlet or outlets
Definitions
- the present invention relates to a devicefor separating air or gas from motor fuel. 7 p
- the centrifugal force drives the fuel in the direction of the cylinder wall, and in the whirling fuel an air or gas funnel is formed at the center, from where the gas collected at this space will rise to the top and escape to the open through an outlet pipe provided in the lid.
- the outlet pipe can be closed by a valve controlled by a float for shutting the valve, when little or no gas escapes from the fuel, this preventing that fuel will escape through the outlet pipe at times, when no gas funnel is formed in the cylinder.
- the device according to the invention provides a means by which the air funnel formed in the cylinder by the rotating fuel is intercepted at a desired height in the lower part of the cylinder, said intercepting means being so designed that only those portions of fuel, which due to the centrifugal force have been concentrated near the cylinder wall, will be capable of passing an annular channel formed by the wall of the J a 2,811,219 .l?atented,0ct.,2 1
- means are further provided for holding the'central intercepting member attachedto a wall, e. g. the bottom wall of the cylinder, which holding means are shaped as guiding blades with acurvature so chosen that they will direct the rotating fuel passing through the annular channel toward the center of the cylinder'bottom where the discharge pipe is provided.
- the separating device according to the invention can be built into mobile pump systems for the transfer of motor fuel of largest capacity
- the invention is not limited to mobile pumping systems, but it can be very well used for stationary pumping devices for the transfer of motor fuel.
- Fig. l is a vertical section through the separating device
- Fig. 2 a plan view with the lid removed.
- a cylinder 1 is shown having a lid 12 screwed thereto so as to be hermetically sealed.
- a housing 2 for a float 3 is secured to the lid 12 so as to communicate freely with the interior of 'cylinder 1.
- the float 3 is mounted on a lever 13 pivotally arranged inside the casing 2 on a pin 14.
- Lever 13 has a slot 15 for accommodating a pin 16 of a valve rod 4.
- Rod 4 supports a valve cone 5 and is axially guided in a hub-shaped member 19 supported by spokes 20 of a ring member 21 mounted on the wall of the casing 2.
- Lever 13 rests on member 19 when the float 3 is in its lowermost position.
- Cylinder 1 has an inlet tube 8 at the upper end closely adjacent to lid 12, and an outlet tube 11 at the bottom 24.
- a suction line 25, 26 of a pump (not shown) is connected to tubes 8 and 11, said pump being part of a fuel transfer system.
- Pipe 8 is connected to the wall of the cylinder 1 tangentially, as may be seen from Fig. 2, so that the fuel entering into cylinder 1 at high speed has a rotating motion imparted thereto. This motion drives the fuel by centrifugal force in the direction of the cylinder wall, where it becomes condensed, so that air or gas bubbles will escape toward the center of the cylinder and to the top. In the center of the rotating fuel, an air or gas funnel G is created, from which air or gas will escape in an uninterrupted stream toward the top and through the open pipe 7 into the air.
- the gas funnel G is intercepted at a desired height by a, for instance, disk-shaped member 9, of such diameter that an annular gap 30 will be left free between the cylinder wall, through which only the densest layers of fuel, which are near the cylinder wall, can escape to the bottom and below member 9, whereas gas or air can never enter.
- ont-the'bottomlzt;griidingIhlades 10 are"used which are so shaped that they willdirect the circulating fuelreaching the space below'member'9 by way of gap'30, toward the exit pipe'll at the bottom of 24. What I'clairnisz. j l.
- 'A device for separating air or gas from motor fuel which comprises an upright cylinder for the passage of said'fuel, an inlet pipe at the top and an outlet pipe at the bottom of the cylinder forconnection to a suction line of a pump, said'inlet pipe being tangentially attached to the wall of said cylinder soas to have aj rotating'motion imparted to the fuel on arrival whereby a funnel-like gas space is formed; a lid for closing said cylinder at the top; ahousing arranged on said lid in open communication with said cylinder, said housing having an outlet pipe connecting to the open air for escape of air or gas, valve 20 means in said housing for temporarily shutting ofl said outlet pipe, when fuel rises too high, and baifle means in the lower portion of said cylinder in the shape of an inverted cone, said bafiie means acting as an intercepting means for gas or air and forming with the wall of the cylinder an annular gap serving as a conduit for said rotating fuel and separating the same from the gas collecting above said bafile means
- a device wherein mounting means are provided for attaching said bafile means on the cylinder Wall, which mounting means are in the shape of curved guide plates for directing the fuel entering through the annular gap'toward the center of the cylinder bottom and into said outlet pipe. 7
Description
J. WENZL Oct. 29, 1957 DEVICE FOR SEPARATING AIR OR GAS FROM MOTOR FUEL Filed Dec. 9, 1955 United 31:31:65 P
DEVICE FOR SEPARATING AIR on GAS FROM Moron FUEL Josef Wenzl, Braunschweig, Germany,'assignor to Walter Jordan, Braunschweig, Germany Application December 9, 1955, Serial No; 552,172
Claims priority, applicationGermany January 20', 1955 2 Claims. Cl. 183-25) The present invention relates to a devicefor separating air or gas from motor fuel. 7 p
When motor fuel such as gasoline, diesel oil, and the like, is transferred by pump' action from a tank into the fuel container of a plane, or from a reservoir into the tank truck, or from a truck into a storage tank below ground, or for any similar purpose, care has to be taken that air or any other gas contained in the fuel should not be sucked into the container into which the fuel is pumped, since otherwise the danger of explosion is increased. Devices are therefore built into the suction lines of the pumps, which serve for eliminating the gases contained in the fuel and permitting their escape into the open.
The above mentioned devices make use of centrifugal force, i. e. fuel subjected to centrifugation in an upright cylinder built into the suction line of a pump at some suitable point. One such device is shown in the copending U. S. application Serial No. 378,263, filed September 3, 1952, now Patent No. 2,757,798, dated August 7, 1956, where an air separator is provided in the fuel transfer system.
The centrifugal force drives the fuel in the direction of the cylinder wall, and in the whirling fuel an air or gas funnel is formed at the center, from where the gas collected at this space will rise to the top and escape to the open through an outlet pipe provided in the lid. The outlet pipe can be closed by a valve controlled by a float for shutting the valve, when little or no gas escapes from the fuel, this preventing that fuel will escape through the outlet pipe at times, when no gas funnel is formed in the cylinder.
It will be readily understood that it is a condition for complete separation of air or gas from the fuel to make the cylinder in which separation occurs so high, and to dispose the discharge pipe for the fuel so low, that in no case air could be sucked from the above-mentioned air funnel through the fuel discharge pipe into the suction line of the pump; in other words, it is necessary that the fuel discharge pipe is disposed at a suitable distance below the lower end of the air funnel.
In order to fulfil these conditions, it is necessary to build a cylinder of considerable height; this, in turn, makes it difficult to house the device in a movable pumping system for fuel transfer into containers, a system as shown in the copending application Ser. No. 378,263. In many cases it is quite impossible to accommodate the device at all.
It is the object of the present invention to overcome this drawback. Broadly speaking, the device according to the invention provides a means by which the air funnel formed in the cylinder by the rotating fuel is intercepted at a desired height in the lower part of the cylinder, said intercepting means being so designed that only those portions of fuel, which due to the centrifugal force have been concentrated near the cylinder wall, will be capable of passing an annular channel formed by the wall of the J a 2,811,219 .l?atented,0ct.,2 1
2 cylinder and the said intercepting means, the fuel being then. discharged below through an outlet pipe arranged at the bottom of the'cylinder.
According to the invention, means are further provided for holding the'central intercepting member attachedto a wall, e. g. the bottom wall of the cylinder, which holding means are shaped as guiding blades with acurvature so chosen that they will direct the rotating fuel passing through the annular channel toward the center of the cylinder'bottom where the discharge pipe is provided.
By the combinationof the features above mentioned the height of the device serving for the separation of air or'. other gases from fuel can be so far reduced as compared to other known devices in this field, that, with other operational conditions being, equal, the separating device according to the invention can be built into mobile pump systems for the transfer of motor fuel of largest capacity,
It should be understood that the invention is not limited to mobile pumping systems, but it can be very well used for stationary pumping devices for the transfer of motor fuel.
An embodiment of the gas separator according to the invention will now be more fully described with reference to the accompanying drawing, but it should be understood that this is given by way of illustration and not of limitation and that many changes can be made in the details without departing from the spirit of the invention.
In the drawing:
Fig. l is a vertical section through the separating device; and
Fig. 2, a plan view with the lid removed.
In Fig. l, a cylinder 1 is shown having a lid 12 screwed thereto so as to be hermetically sealed. A housing 2 for a float 3 is secured to the lid 12 so as to communicate freely with the interior of 'cylinder 1. The float 3 is mounted on a lever 13 pivotally arranged inside the casing 2 on a pin 14. Lever 13 has a slot 15 for accommodating a pin 16 of a valve rod 4. Rod 4 supports a valve cone 5 and is axially guided in a hub-shaped member 19 supported by spokes 20 of a ring member 21 mounted on the wall of the casing 2. Lever 13 rests on member 19 when the float 3 is in its lowermost position. 'When the float is in its top position, it will force lever 13 and pin 16 upwards, thus causing valve rod 4, to move cone 5 onto a valve seat 23 and thereby to close a pipeline 7 leading into the open. In this way it is prevented that fuel from the interior of the cylinder can escape into the open by pipe 7 when it rises into the housing 2.
Cylinder 1 has an inlet tube 8 at the upper end closely adjacent to lid 12, and an outlet tube 11 at the bottom 24. A suction line 25, 26 of a pump (not shown) is connected to tubes 8 and 11, said pump being part of a fuel transfer system.
Pipe 8 is connected to the wall of the cylinder 1 tangentially, as may be seen from Fig. 2, so that the fuel entering into cylinder 1 at high speed has a rotating motion imparted thereto. This motion drives the fuel by centrifugal force in the direction of the cylinder wall, where it becomes condensed, so that air or gas bubbles will escape toward the center of the cylinder and to the top. In the center of the rotating fuel, an air or gas funnel G is created, from which air or gas will escape in an uninterrupted stream toward the top and through the open pipe 7 into the air.
According to the invention, the gas funnel G is intercepted at a desired height by a, for instance, disk-shaped member 9, of such diameter that an annular gap 30 will be left free between the cylinder wall, through which only the densest layers of fuel, which are near the cylinder wall, can escape to the bottom and below member 9, whereas gas or air can never enter.
Even though the gas funnef'G may tear off once in a while, the air bubbles thus separated will rise toward the top, and in the direction of pipe 7.
For mounting member 9 on the wall of cylinder. 1, .or as shownin'the drawing, ont-the'bottomlzt;griidingIhlades 10 are"used which are so shaped that they willdirect the circulating fuelreaching the space below'member'9 by way of gap'30, toward the exit pipe'll at the bottom of 24. What I'clairnisz. j l. 'A device for separating air or gas from motor fuel which comprises an upright cylinder for the passage of said'fuel, an inlet pipe at the top and an outlet pipe at the bottom of the cylinder forconnection to a suction line of a pump, said'inlet pipe being tangentially attached to the wall of said cylinder soas to have aj rotating'motion imparted to the fuel on arrival whereby a funnel-like gas space is formed; a lid for closing said cylinder at the top; ahousing arranged on said lid in open communication with said cylinder, said housing having an outlet pipe connecting to the open air for escape of air or gas, valve 20 means in said housing for temporarily shutting ofl said outlet pipe, when fuel rises too high, and baifle means in the lower portion of said cylinder in the shape of an inverted cone, said bafiie means acting as an intercepting means for gas or air and forming with the wall of the cylinder an annular gap serving as a conduit for said rotating fuel and separating the same from the gas collecting above said bafile means shaped as an inverted cone, said funnel-like gas space permitting said gases to rise therein and to escape by way of the outlet pipe attached to said housing on the lid, while the concentrated fuel is withdrawn from the bottom of said cylinder. 7
2. A device according to claim 1 wherein mounting means are provided for attaching said bafile means on the cylinder Wall, which mounting means are in the shape of curved guide plates for directing the fuel entering through the annular gap'toward the center of the cylinder bottom and into said outlet pipe. 7
References Cited in the file of this patent UNITED STATES PATENTS
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE796886X | 1955-01-20 |
Publications (1)
Publication Number | Publication Date |
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US2811219A true US2811219A (en) | 1957-10-29 |
Family
ID=6711042
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US552172A Expired - Lifetime US2811219A (en) | 1955-01-20 | 1955-12-09 | Device for separating air or gas from motor fuel |
Country Status (2)
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US (1) | US2811219A (en) |
GB (1) | GB796886A (en) |
Cited By (79)
Publication number | Priority date | Publication date | Assignee | Title |
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US2913068A (en) * | 1957-09-24 | 1959-11-17 | Chicago Stainless Equipment | Air eliminator |
US3116133A (en) * | 1960-11-14 | 1963-12-31 | Shell Oil Co | Hydrocarbon seep detection separator |
US3529405A (en) * | 1968-07-09 | 1970-09-22 | Ashbrook Clifford L | Separator |
US3755996A (en) * | 1970-10-19 | 1973-09-04 | Siemens Ag | Structure for increasing the separation capacity of centrifugal force separators for steam drying |
US3784009A (en) * | 1971-12-13 | 1974-01-08 | Univ Oklahoma State | Hydroclone for separating an immiscible heavy phase from a light phase liquid |
US3826064A (en) * | 1973-04-12 | 1974-07-30 | Monsanto Co | Vapor-liquid separator |
FR2496594A1 (en) * | 1980-12-18 | 1982-06-25 | Mtu Muenchen Gmbh | LIQUID TANK WITH AIR DRAIN, SUCH AS FUEL TANK, IN PARTICULAR FOR FLYING VEHICLE |
US4475932A (en) * | 1983-01-21 | 1984-10-09 | Amtrol Inc. | Gas-liquid vortex separator-eliminator |
US4555253A (en) * | 1983-01-21 | 1985-11-26 | Amtrol, Inc. | Gas-liquid vortex separator-eliminator |
FR2597068A1 (en) * | 1986-04-09 | 1987-10-16 | Erno Raumfahrttechnik Gmbh | Filling device for filling a reservoir with liquid, especially in weightless conditions |
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