US3888274A - Air bleeding device for a pressurised liquid supply system - Google Patents

Air bleeding device for a pressurised liquid supply system Download PDF

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Publication number
US3888274A
US3888274A US414526A US41452673A US3888274A US 3888274 A US3888274 A US 3888274A US 414526 A US414526 A US 414526A US 41452673 A US41452673 A US 41452673A US 3888274 A US3888274 A US 3888274A
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United States
Prior art keywords
tank
fuel
air
valve
bleed valve
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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US414526A
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English (en)
Inventor
William A Weston
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Individual
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Individual
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Publication of US3888274A publication Critical patent/US3888274A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0063—Regulation, control including valves and floats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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
    • Y10T137/3009—Plural discriminating outlets for diverse fluids
    • Y10T137/3012—Common actuator for control valves
    • 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
    • Y10T137/3021—Discriminating outlet for liquid
    • Y10T137/3028—With non-discriminating gas vent or liquid discharge
    • Y10T137/3034—Manual control
    • 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
    • Y10T137/7358—By float controlled valve
    • Y10T137/7423—Rectilinearly traveling float
    • Y10T137/7426—Float co-axial with valve or port
    • Y10T137/7436—Float rigid with valve
    • 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
    • Y10T137/794—With means for separating solid material from the fluid
    • Y10T137/8122—Planar strainer normal to flow path

Definitions

  • This invention relates to an air bleeding device for use in a pressurised liquid supply system, especially but not exclusively the fuel supply system of a diesel engme.
  • an air bleeding device for use in a pressurized liquid supply system, especially but not exclusively the fuel supply system ofa diesel engine, said device comprising a closed tank having a liquid inlet and a liquid outlet adapted for connection respectively to a liquid input pipe and a liquid output pipe, and an air bleed valve in said tank adapted to open when liquid in the tank falls to a predetermined level due to the entry of air into the tank.
  • An air bleeding device for the fuel supply system of a diesel engined vehicle comprises a closed cylindrical tank 1, into which fuel is fed through an inlet 2 by a feed or lift pump not shown, and from which the fuel passes through an outlet 3 to a fuel injection pump, not shown.
  • the tank has a peripheral wall 1A and is closed by top and bottom walls 1B, 1C.
  • a baffle plate 4 is provided within the tank 1 opposite and adjacent the inlet 2 to restrain the fuel from scatter" so that the fuel drops to the bottom of the tank, and a similar baffle plate 4A is provided adjacent the outlet 3.
  • the baffle 4A may surround the fuel outlet 3 to prevent water or sludge, which may have inadvertently entered the tank 1 and be lying at the bottom of tank, from entering the outlet.
  • the tank 1 has on its top wall 18 an automatically operating air bleed valve 5 a sight gauge 6, and a manually operable air bleed valve or cock 7.
  • the movable member 5A of the valve 5 is controlled by an upright float in the form of a cylindrical tube 8 having end caps 8A, 8B, and the indicator 6A of the gauge 6 is con trolled by an upright float in the form of a cylindrical tube 9 having end caps 9A, 9B.
  • the floats 8 and 9 are slidably guided in upper and lower guide tubes 8C, 8D and 9C, 9D respectively secured to the top and bottom walls lB, 1C.
  • the tank 1 fills with fuel until the floats 8 and 9 float, and the sight gauge 6 and the air valve 5 become operative. When the float 8 has raised the valve member 5A sufficiently, the valve 5 is closed. This occurs when the fuel is at level 8 in the drawing.
  • Pressurised fuel continues to flow into the tank 1 until such time as the pressure inside the tank equals the pressure applied to the fuel being forced into it by the lift pump, and the fuel is above level B in the drawing.
  • the manually operated valve 7 is opened to allow air at the top of the tank 1 and above the level of the valve 5 to escape, and to allow fuel from the inlet 2, by way of the lift pump, to fill the tank to the bottom of the valve 7.
  • tank 1 is now filled to capacity with fuel and little or no air remains inside it, and, unless air is fed into tank 1 with the fuel, the level of fuel in the tank 1 remains constant and at the top of the tank and the sight gauge 6 does not move, and the valve 5 remains closed.
  • the float 8 When sufficient air has been trapped in the tank 1 to lower the level of the liquid, the float 8 lowers, and consequently the valve member 5A opens and air is allowed to escape through the valve 5 and through the air filter flame trap 11 to the atmosphere, and/or through a piped connection to a conventional excess fuel pipe 13.
  • Fuel fed through the inlet 2 replaces the air expelled, and again raises the float 8 and the valve member 5A, and so closes the valve 5.
  • Air entering the tank 1 is therefore constantly and automatically expelled from tank 1, within which, a reasonably constant level of fuel is maintained.
  • the float 9 correspondingly moves up and down, starting to move down at level A, so that the presence of air in the tank 1 can be seen from the gauge 6.
  • the float 9 for the gauge 6 drops below its normal minimum level as the fuel level drops to level C.
  • an actuator in the form of a magnet 9E on the end cap 98 of the float 9 actuates an electrical reed switch 10 on the bottom wall 1C which actuates a signal device, not shown, e.g. a buzzer, so that the driver receives a warning, to stop his engine be' fore the fuel in the main fuel pump is aerated.
  • the float 8 has a magnet 8E on its end cap 88, and a reed switch 10A is provided on the bottom wall 1C, and the switch 10A is connected to a cut-off device, not shown, for the fuel supply.
  • a cut-off device not shown
  • a non-return valve may be fitted to the outlet 3, so that fuel will not drain back into the tank when it is not pressurised.
  • Additional baffles may be fitted inside the box to prevent splashing of the liquid.
  • the air valve 5 and the sight gauge 6 may be incorporated into one unit for economy in manufacture.
  • a relief valve 12 on the wall 1B may be provided, and this adjusted so as to release excess pressure within the tank 1 in the event of failure of the normal relief valve fitted to the lift pump.
  • a connection from the sight gauge 6 to the chamber of the safety relief valve 12 and to the manual valve 7 may be made through the conventional excess fuel drain pipe 13 to drain away any excess of fuel from these parts.
  • the device described can save a great deal of time and money which would otherwise be lost by breakdowns caused by diesel engines, especially in commercial vehicles, drawing air into their fuel systems due to slack or faulty couplings, bad gaskets, or cracked pipes, because the air bleeding device described automatically removes air which otherwise would be pumped along the fuel line and into the injector pump and cause the engine to stop.
  • the device can give warning to the driver or operator, that the main fuel supply tank is empty, before the engine actually stops, and, at the same time, it can, if desired, cause the engine to be stopped so that the fuel injector pump does not empty.
  • the diesel engine and the fuel injector pump are not allowed to run out of fuel, so that the engine may be re-started, after the supply tank has been refilled, without the existing trouble of bleeding the lift pump, the filter, and, the high pressure pump.
  • the sight gauge is provided so that the driver or operator can check visually whether or not an air leak is present in the fuel system even although the device is actually removing the air at the time and allowing the engine to continue to run.
  • opening or closing of the valve member 5A may be effected electrically, for example by a solenoid valve actuated by a level switch, and the arrangement may be such that the valve 5 does not open until the fuel reaches level B, in which case, the solenoid valve may be closed by a further level switch.
  • the device is not limited to use with diesel engine or a diesel engined vehicle, but can be used, for example, with a fuel injection petrol engine or in any other pressurised liquid system.
  • 14 indicates a drainage hole which is, of course, provided with a plug, not shown, and which may be used to drain the tank 1, or to remove water or sludge which may have inadvertently entered the fuel system.
  • l5 indicates fuel relief holes in the guide tubes 8D, 9D, and 16 indicates air vents in the guide tubes 8C, 9C.
  • the fuel relief holes are dimensioned so that the fuel filled guide tubes 8D, 9D act as dampers for the floats 8 and 9.
  • the floats 8 and 9 may be spring-urged downwardly.
  • the guide tubes 8C, 8D and 9C, 9D may in each case be replaced by a single guide tube extending between the top and bottom walls 18, 1C, and the floats 8 and 9, especially when carrying the magnets 8E, 9E may be held against turning relative to the guide tubes, for example by projections on the floats engaging in grooves in the guide tubes.
  • the valve 5 may be a disc valve having its disc mounted on the float 8 or on a leaf spring attached to the tank I, and the valve 7 may be arranged so that a spanner or key is required to open It.
  • An air bleeding device in the fuel supply system of a fuel injection engine said fuel system including a fuel injection pump, and said air bleeding device comprising a closed tank, side wall means and a top wall and a bottom wall forming said tank, means defining a fuel inlet in said tank, and means defining a fuel outlet in said tank connected to said fuel injection pump, an automatically operating air bleed valve in said top wall of the tank, a float in said tank for controlling operation of said valve and effecting opening of the valve when fuel in the tank, due to the presence of air trapped in the tank, drops below a predetermined level considerably spaced from said top wall, and a manually operable air bleed valve in said top wall opening directly into said tank; whereby, during filling of said tank with fuel, said manually operable bleed valve can be temporarily opened to permit the escape of air from said tank after the fuel has risen to said predetermined level and the automatically operating air bleed valve has closed, and the tank can thus be substantially completely filled with fuel and substantially completely evacuated of air, and said automatically operating air bleed
  • each of said floats is slidably guided in upper and lower guide tubes secured respectively to top and bottom walls of said tank, and each lower guide tube is provided with liquid relief holes, which, when said lower guide tubes are filled with liquid, act as dampers for the floats.
  • each of said switches is a reed switch, and each of said actuators is a magnet.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
US414526A 1972-11-09 1973-11-08 Air bleeding device for a pressurised liquid supply system Expired - Lifetime US3888274A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5171372A GB1451437A (en) 1972-11-09 1972-11-09 Air bleeding device for a pressurised lqiuid supply system

Publications (1)

Publication Number Publication Date
US3888274A true US3888274A (en) 1975-06-10

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Application Number Title Priority Date Filing Date
US414526A Expired - Lifetime US3888274A (en) 1972-11-09 1973-11-08 Air bleeding device for a pressurised liquid supply system

Country Status (6)

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US (1) US3888274A (US06826419-20041130-M00005.png)
JP (1) JPS5047026A (US06826419-20041130-M00005.png)
DE (1) DE2355485A1 (US06826419-20041130-M00005.png)
FR (1) FR2206112B3 (US06826419-20041130-M00005.png)
GB (1) GB1451437A (US06826419-20041130-M00005.png)
NL (1) NL7315277A (US06826419-20041130-M00005.png)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079743A (en) * 1975-11-13 1978-03-21 Bridgemore Engineering Limited Air bleeding device
US4730638A (en) * 1987-02-17 1988-03-15 Carl Hazelton Combination automatic and manual bleed valve
US5201298A (en) * 1991-12-27 1993-04-13 Paccar Inc. Combination sending unit and fuel draw automatic shutoff valve
US5573031A (en) * 1993-02-10 1996-11-12 Hydac Technology Gmbh Air bleed valve
US6119951A (en) * 1995-06-02 2000-09-19 Spiro Research B.V. Expansion control for a closed fluid circulation system
US6244289B1 (en) * 1999-01-15 2001-06-12 Helmut W. Hopfe Vent system
US6405766B1 (en) * 2000-11-29 2002-06-18 Eaton Corporation Noise dampened float type fuel vapor vent valve
US6601454B1 (en) * 2001-10-02 2003-08-05 Ted R. Botnan Apparatus for testing jack legs and air drills
US6688330B1 (en) * 1999-07-23 2004-02-10 Raval Agriculture Cooperative Societies Ltd. Silenced valve
DE10257570A1 (de) * 2002-12-10 2004-06-24 Adam Opel Ag Schwimmerventil für ein Luftfiltergehäuse
WO2005047082A2 (en) * 2003-11-17 2005-05-26 Eaton Corporation Vent valve for re-circulating hydraulic system
DE102007025682A1 (de) * 2007-06-01 2008-12-11 Hydac System Gmbh Ventilvorrichtung
US20100050994A1 (en) * 2008-09-04 2010-03-04 Hyundai Motor Company High-Pressure Fuel Supply Circuit
US20130291838A1 (en) * 2012-05-04 2013-11-07 Ronnie Lee Booth Diesel bleeder
US20190060791A1 (en) * 2017-08-22 2019-02-28 Hamilton Sundstrand Corporation Vacuum system for fuel degassing
US11491421B2 (en) 2018-01-22 2022-11-08 Hamilton Sundstrand Corporation Valve controlled vacuum system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035535C2 (de) * 1980-09-20 1983-11-24 Daimler-Benz Ag, 7000 Stuttgart Dampfabscheider im Kraftstoffzufuhrsystem einer Brennkraftmaschine
SE445481B (sv) * 1982-02-10 1986-06-23 Imo Ab Brenslesystem for marina dieselmotorer
GB2140091A (en) * 1983-05-17 1984-11-21 Petter Refrigeration Ltd Fuel supply system for a diesel engine
ES2006762A6 (es) * 1986-09-16 1989-05-16 Rodriguez Rosa Nunez Antonio J Aparato detector y neutralizador de aire y agua en los motores de combustion interna de combustibles
HU212788B (en) * 1988-03-10 1996-11-28 Pinter Merrill E Combined regulator of liquid level and pressure for a separator
FR2650343B1 (fr) * 1989-07-27 1994-04-15 Bendix France Sa Dispositif de degazage de la chambre d'aspiration d'une pompe
JP3588771B2 (ja) * 1999-11-18 2004-11-17 佐藤樹脂工業株式会社 気泡除去装置

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1481470A (en) * 1920-10-11 1924-01-22 Londe William S La Electric liquid-level indicator
US1970843A (en) * 1932-07-20 1934-08-21 Nat Pumps Corp Apparatus for eliminating free air from liquid
US2274532A (en) * 1942-02-24 Safety fuel system fob internal
US2764172A (en) * 1951-10-22 1956-09-25 Northrop Aircraft Inc Air venting valve
US2853092A (en) * 1954-07-29 1958-09-23 Rensselaer Valve Co Air and vacuum release valve
US3195557A (en) * 1963-04-25 1965-07-20 Gen Dynamics Corp Float actuated gas vent
US3251374A (en) * 1963-10-29 1966-05-17 Smith Oil Agitator Company Device for continuously removing air from a fluid passing through a closed conduit system
US3437771A (en) * 1967-05-09 1969-04-08 Roylyn Inc Liquid level sensing means
US3483656A (en) * 1966-07-14 1969-12-16 Gerhard Baumann Plant receptacle for hydroponics
US3563263A (en) * 1968-01-02 1971-02-16 James P Benson System for storing petroleum products
US3586015A (en) * 1970-01-22 1971-06-22 Ford Motor Co Fuel tank vapor separator system having magnetic attitude sensing means

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2274532A (en) * 1942-02-24 Safety fuel system fob internal
US1481470A (en) * 1920-10-11 1924-01-22 Londe William S La Electric liquid-level indicator
US1970843A (en) * 1932-07-20 1934-08-21 Nat Pumps Corp Apparatus for eliminating free air from liquid
US2764172A (en) * 1951-10-22 1956-09-25 Northrop Aircraft Inc Air venting valve
US2853092A (en) * 1954-07-29 1958-09-23 Rensselaer Valve Co Air and vacuum release valve
US3195557A (en) * 1963-04-25 1965-07-20 Gen Dynamics Corp Float actuated gas vent
US3251374A (en) * 1963-10-29 1966-05-17 Smith Oil Agitator Company Device for continuously removing air from a fluid passing through a closed conduit system
US3483656A (en) * 1966-07-14 1969-12-16 Gerhard Baumann Plant receptacle for hydroponics
US3437771A (en) * 1967-05-09 1969-04-08 Roylyn Inc Liquid level sensing means
US3563263A (en) * 1968-01-02 1971-02-16 James P Benson System for storing petroleum products
US3586015A (en) * 1970-01-22 1971-06-22 Ford Motor Co Fuel tank vapor separator system having magnetic attitude sensing means

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4079743A (en) * 1975-11-13 1978-03-21 Bridgemore Engineering Limited Air bleeding device
US4730638A (en) * 1987-02-17 1988-03-15 Carl Hazelton Combination automatic and manual bleed valve
US5201298A (en) * 1991-12-27 1993-04-13 Paccar Inc. Combination sending unit and fuel draw automatic shutoff valve
US5573031A (en) * 1993-02-10 1996-11-12 Hydac Technology Gmbh Air bleed valve
US6119951A (en) * 1995-06-02 2000-09-19 Spiro Research B.V. Expansion control for a closed fluid circulation system
US6244289B1 (en) * 1999-01-15 2001-06-12 Helmut W. Hopfe Vent system
US6688330B1 (en) * 1999-07-23 2004-02-10 Raval Agriculture Cooperative Societies Ltd. Silenced valve
US6405766B1 (en) * 2000-11-29 2002-06-18 Eaton Corporation Noise dampened float type fuel vapor vent valve
US6601454B1 (en) * 2001-10-02 2003-08-05 Ted R. Botnan Apparatus for testing jack legs and air drills
DE10257570A1 (de) * 2002-12-10 2004-06-24 Adam Opel Ag Schwimmerventil für ein Luftfiltergehäuse
WO2005047082A2 (en) * 2003-11-17 2005-05-26 Eaton Corporation Vent valve for re-circulating hydraulic system
WO2005047082A3 (en) * 2003-11-17 2008-01-24 Eaton Corp Vent valve for re-circulating hydraulic system
DE102007025682A1 (de) * 2007-06-01 2008-12-11 Hydac System Gmbh Ventilvorrichtung
DE102007025682B4 (de) * 2007-06-01 2009-04-16 Hydac System Gmbh Ventilvorrichtung
US20100050994A1 (en) * 2008-09-04 2010-03-04 Hyundai Motor Company High-Pressure Fuel Supply Circuit
US7931011B2 (en) * 2008-09-04 2011-04-26 Hyundai Motor Company High-pressure fuel supply circuit
US20130291838A1 (en) * 2012-05-04 2013-11-07 Ronnie Lee Booth Diesel bleeder
US20190060791A1 (en) * 2017-08-22 2019-02-28 Hamilton Sundstrand Corporation Vacuum system for fuel degassing
US11000784B2 (en) * 2017-08-22 2021-05-11 Hamilton Sunstrand Corporation Vacuum system for fuel degassing
US11491421B2 (en) 2018-01-22 2022-11-08 Hamilton Sundstrand Corporation Valve controlled vacuum system

Also Published As

Publication number Publication date
GB1451437A (en) 1976-10-06
JPS5047026A (US06826419-20041130-M00005.png) 1975-04-26
DE2355485A1 (de) 1974-05-16
FR2206112A1 (US06826419-20041130-M00005.png) 1974-06-07
NL7315277A (US06826419-20041130-M00005.png) 1974-05-13
FR2206112B3 (US06826419-20041130-M00005.png) 1976-09-24

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