US3653784A - Proportionating feed pump - Google Patents

Proportionating feed pump Download PDF

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Publication number
US3653784A
US3653784A US46778A US3653784DA US3653784A US 3653784 A US3653784 A US 3653784A US 46778 A US46778 A US 46778A US 3653784D A US3653784D A US 3653784DA US 3653784 A US3653784 A US 3653784A
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United States
Prior art keywords
suction
delivery
pump
oil
effected
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
Application number
US46778A
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English (en)
Inventor
Wulf Leitermann
Gerhard Maurhoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Application granted granted Critical
Publication of US3653784A publication Critical patent/US3653784A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
    • F04B7/0266—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members
    • F04B7/0275—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the inlet and discharge means being separate members and being deformable, e.g. membranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L23/00—Valves controlled by impact by piston, e.g. in free-piston machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M3/00—Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
    • F04B13/02—Pumps specially modified to deliver fixed or variable measured quantities of two or more fluids at the same time
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/06—Pumps having fluid drive
    • F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/102—Disc valves
    • F04B53/1032—Spring-actuated disc valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/06—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means including spring- or weight-loaded lost-motion devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/1207—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air using a source of partial vacuum or sub-atmospheric pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/12—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air
    • F04B9/123—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber
    • F04B9/127—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being elastic, e.g. steam or air having only one pumping chamber rectilinear movement of the pumping member in the working direction being obtained by a single-acting elastic-fluid motor, e.g. actuated in the other direction by gravity or a spring
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Definitions

  • the invention relates to a proportioning pump for feeding at least two different liquids in a definite flow proportion.
  • the pump has two interconnected displacement members executing their suction strokes and their delivery strokes simultaneously, each of which members is arranged in its own working chamber communicating with a suction and a pressure line by oppositely acting check valves.
  • this pump is employed in internal combustion engines with mixed lubrication for proportioning the fuel and oil, with the fuel-oil mixture being supplied to the float chamber of a carburetor.
  • the fuel pump will be in the form of a diaphragm pump driven by way of a connecting rod or plunger and feeding when the float pointer of the carburetor has cleared the supply nozzle.
  • the diaphragm is placed in oscillation that depends on the speed of the engine, so that when such a fuel pump is combined with an oil proportionating pump, the function of the check valves in the suction and pressure lines is impaired by their lag. The result is that a constant mixture ratio cannot be maintained independently of flow rate.
  • the problem to which this invention is directed is to provide a proportionating feed pump in which a constant mixture ratio of two liquids is assured independently of flow rate.
  • This problem is solved in that one stroke of the two displacement members is effected in known manner by spring action, and the opposite stroke by a controlled drive medium, a control means capable of being actuated by the displacement members being provided, that starts the supply of drive medium at the end of the full stroke effected by spring action and shuts it off at the end of the opposite full stroke effected by the medium.
  • the two displacement members always execute both the full suction stroke and the full delivery stroke, proper function of the check valves is assured; and by suitable dimensioning of the working surfaces of the two displacement members, a desired mixture ratio can be maintained very accurately.
  • one of the displacement members is in the form of a spring-loaded diaphragm bounding a working chamber for the liquid to be fed and cooperates with a piston forming the other displacement member and being displaceable in a cylinder.
  • the diaphragm On its side away from the working chamber, the diaphragm may bound a chamber capable of being connected, by a valve capable of being actuated by the diaphragm, to a source of suction at the end of the delivery stroke and for the duration of the suction stroke and to the atmosphere not later than at the end of the suction stroke.
  • the intake line is available as a source of suction.
  • the valve may be actuated by the diaphragm by way of a toggle spring that puts the valve into a position admitting suction at the end of the delivery stroke of the diaphragm and keeps it in that position until the end of the suction stroke, and then puts the valve in the other position, shutting off the suction, in which the delivery stroke of the diaphragm is effected by the spring.
  • the valve may have a permanent magnet tending to hold the valve in the position of shutting off the suction and connected to the diaphragm by way of a spring. At the end of the suction stroke, the permanent magnet is carried by the suction-actuated diaphragm off the suction line.
  • the valve is picked up by the diaphragm and thus opened, so that a new suction stroke can take place.
  • Another possible way of effecting the back stroke of the displacement members consists in that they are connected to the armature of an electro-magnet effecting the back stroke and cooperate with a switch that switches the electro-magnet on at the end of the spring-actuated stroke and off again at the end ofthe back stroke.
  • a mixing chamber is provided in the pump housing, into which the delivery lines lead from the two working chambers, the ports of the two delivery lines being controlled by a common check valve.
  • FIG. 1 shows a sectional view of a preferred embodiment, with the control means in one position
  • FIG. 1a shows a partial section of FIG. 1, with the control means in the other position.
  • a pump housing 1 has two working chambers 2 and 3.
  • Chamber 2 contains a diaphragm 4 acted upon in a delivery direction by a spring 5.
  • Chamber 2 is served by a fuel supply line 6 closed by a check valve 7.
  • a pressure line 8 leads from chamber 2 to a mixing chamber 9 and is closed by a second check valve 10.
  • a piston 11 is displaceable, being held against the diaphragm 4 by a spring 12 and thus executing the same motions as diaphragm 4.
  • Chamber 3 is served by an oil supply line 13, closed by a shut-off valve designated generally as 14.
  • the delivery line 15 of working chamber 3 leads to mixing chamber 9 and is closed by the same check valve 10 as the delivery line 8 of working chamber 2.
  • a mixture line 16 leads from mixing chamber 9 to the float chamber of the carburetor.
  • the diaphragm 4 on the side away from the working chamber 2, bounds a chamber 17 opening into a negative pressure line 18 connected to the intake duct of the engine.
  • a line 19 leads from chamber 17 to the atmosphere.
  • Lines 18 and 19 are alternatively capable of being shut off by a valve 20 actuated by diaphragm 4 at the end of each of its suction and delivery strokes.
  • a passage 21 leads from chamber 17 to a chamber 22 bounded by a diaphragm 23 bearing the valve member 24 of shut-off valve 14. Valve member 24 is acted upon in a closing direction by a spring 25.
  • Valve 20 has a constriction 26 which, in the position shown in FIG. 1, clears the negative pressure line 18.
  • valve 20 is provided with a plate 27 closing off line 19.
  • the actuation of valve 20 by diaphragm 4 is effected with the aid of a U-shaped toggle spring 28 connected articulately by two spreaders 29 to a projection 30 on diaphragm 4.
  • the diaphragm 4 In the position shown in FIG. 1, the diaphragm 4 is at the end of its delivery stroke, which is effected by spring 5.
  • the negative pressure now prevailing in chamber 17 draws the diaphragm 4 downward in the drawing, spreading the toggle spring 28 by means of spreaders 29.
  • fuel passes through line 6 and the opening check valve 7 into chamber 2, and the negative pressure in chamber 17 acts on diaphragm 23 and opens the shut-off valve 14, so that oil can reach the working chamber 3 by way of line 13.
  • the spreaders 29 snap past dead center into their other position, shown in FIG. 1a, lifting valve 20 until its stop 31 strikes the pump housing.
  • the suction stroke can begin only when the full deliver stroke has been carried out, and this independently of the duration, determined by the demand, of the delivery stroke. Since only full suction and delivery strokes can be executed throughout, it is possible to keep a given mixture ratio constant within relatively narrow limits.
  • suction stroke is effected by negative pressure.
  • a hydraulic medium instead of, for example, compressed air or a liquid under pressure, without departing from the spirit of the invention.
  • a proportionating pump for feeding fuel and oil in a definite mixture ratio for mixture-lubricated internal combustion engines wherein the pump has two displacement members, one for fuel and the other for oil, which perform their suction strokes simultaneously and their delivery strokes simultaneously, the delivery strokes being effected by spring means and the suction strokes being effected by a controlled drive medium supplied at the end of the full stroke effected by said spring means and shut off at the end of the full stroke effected by said drive medium, each displacement member being arranged in its own working chamber communicating with a suction and a delivery line by way of opposedly acting check valves, the check valve in the suction line of the oil-carrying working chamber being actuated in the opening direction by the drive medium effecting the suction stroke and simultaneously therewith.
  • a pump according to claim 1 comprising a mixing chamber into which the delivery lines from the two working chambers lead, the outlets of the two delivery lines being controlled by a common check valve which opens or closes both delivery lines simultaneously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
US46778A 1969-06-18 1970-06-16 Proportionating feed pump Expired - Lifetime US3653784A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691930811 DE1930811A1 (de) 1969-06-18 1969-06-18 Foerder- und Dosierpumpe

Publications (1)

Publication Number Publication Date
US3653784A true US3653784A (en) 1972-04-04

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ID=5737286

Family Applications (1)

Application Number Title Priority Date Filing Date
US46778A Expired - Lifetime US3653784A (en) 1969-06-18 1970-06-16 Proportionating feed pump

Country Status (5)

Country Link
US (1) US3653784A (enrdf_load_stackoverflow)
CS (1) CS167290B2 (enrdf_load_stackoverflow)
DE (1) DE1930811A1 (enrdf_load_stackoverflow)
FR (1) FR2046859B1 (enrdf_load_stackoverflow)
GB (1) GB1294716A (enrdf_load_stackoverflow)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707955A (en) * 1971-06-01 1973-01-02 Borg Warner Engine apparatus
US3886914A (en) * 1973-12-14 1975-06-03 Ford Motor Co Lubricant metering system
US3913551A (en) * 1974-01-04 1975-10-21 Raymond Lee Organization Inc Protection device for engine operating on gas-oil mixture
US4142486A (en) * 1977-09-06 1979-03-06 Schreier Joseph S Fuel-oil mixing apparatus for internal-combustion engines
DE3237212A1 (de) * 1981-10-08 1983-04-28 Outboard Marine Corp., 60085 Waukegan, Ill. Kombinierte kraftstoff- und oelpumpe
DE3239578A1 (de) * 1981-11-23 1983-05-26 Outboard Marine Corp., 60085 Waukegan, Ill. Schiffsantriebsvorrichtung sowie vorrichtung zum pumpen von oel und zuliefern von einem kraftstoff/oelgemisch
US4471728A (en) * 1983-05-09 1984-09-18 Outboard Marine Corporation Pressure-controlled stroke limiter
US4539949A (en) * 1981-10-08 1985-09-10 Outboard Marine Corporation Combined fluid pressure actuated fuel and oil pump
US4551076A (en) * 1983-10-07 1985-11-05 Outboard Marine Corporation Fluid driven pump with one-way valve in fluid inlet
US4552101A (en) * 1983-02-07 1985-11-12 Outboard Marine Corporation Fluid pressure actuated motor with pneumatically-coupled pistons
US4583500A (en) * 1985-01-25 1986-04-22 Brunswick Corp. Marine propulsion system with automatic oil-fuel mixing
US4594970A (en) * 1985-02-11 1986-06-17 Outboard Marine Corporation Marine installation including fuel/oil mixing device
US4700671A (en) * 1984-01-26 1987-10-20 Sanshin Kogyo Kabushiki Kaisha Internal combustion engine provided with fuel injection device
USRE32577E (en) * 1983-10-07 1988-01-12 Outboard Marine Corporation Fluid pumping device for use with a fluid pump
US4966105A (en) * 1983-12-05 1990-10-30 Sanshin Kogyo Kabushiki Kaisha Lubricating oil supply device for internal combustion engine
US5197417A (en) * 1991-08-02 1993-03-30 Andreas Stihl Fuel injection pump for a two-stroke engine in a work apparatus such as a motor-driven chain saw
US5197418A (en) * 1991-09-06 1993-03-30 Andreas Stihl Fuel injection pump for a two-stroke engine
WO1998026180A1 (en) * 1996-12-11 1998-06-18 Pump International Limited Diaphragm pump with integrated magnetic valve for vacuum cleaner
US6085702A (en) * 1997-03-21 2000-07-11 Yamaha Hatsudoki Kabushiki Kaisha Lubrication system for an engine having a floatless carburetor
US20080246421A1 (en) * 2007-04-04 2008-10-09 Goodrich Actuation Systems Limited Actuator Arrangement
US20090068034A1 (en) * 2007-09-12 2009-03-12 Pumptec, Inc. Pumping system with precise ratio output
US20110056462A1 (en) * 2009-09-04 2011-03-10 Nagesh Mavinahally Four cycle engine carburetors
WO2015066622A1 (en) * 2013-11-01 2015-05-07 Allegiance Corporation Pneumatic pump system and related methods
US10167863B1 (en) 2012-03-28 2019-01-01 Pumptec, Inc. Proportioning pump, control systems and applicator apparatus
US10760557B1 (en) 2016-05-06 2020-09-01 Pumptec, Inc. High efficiency, high pressure pump suitable for remote installations and solar power sources
US10823160B1 (en) 2017-01-12 2020-11-03 Pumptec Inc. Compact pump with reduced vibration and reduced thermal degradation

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651614C2 (de) * 1976-11-12 1984-10-04 Lang Apparatebau GmbH, 8227 Siegsdorf Dosierpumpe
CA1155711A (en) * 1979-09-21 1983-10-25 William S. Credle, Jr. Reciprocating pump and reversing mechanism therefor
US4436493A (en) 1979-09-21 1984-03-13 The Coca-Cola Company Self contained pump and reversing mechanism therefor
FR2478958A1 (fr) * 1980-04-01 1981-10-02 Decoufle Dispositif d'alimentation en encre des appareils d'imprimerie pour machines a confectionner les cigarettes
GB2151311B (en) * 1981-10-23 1986-04-16 Outboard Marine Corp Fluid-pressure-actuated motor
GB2151312B (en) * 1981-10-23 1986-04-23 Outboard Marine Corporated Fluid-pressure-actuated motor
GB2108212B (en) * 1981-10-23 1986-04-16 Outboard Marine Corp Combined fluid pressure actuated fuel and oil pump
US4634350A (en) * 1981-11-12 1987-01-06 The Coca-Cola Company Double acting diaphragm pump and reversing mechanism therefor
US4480969A (en) * 1981-11-12 1984-11-06 The Coca-Cola Company Fluid operated double acting diaphragm pump housing and method
FR2568635B1 (fr) * 1984-08-03 1988-12-23 Marchal Equip Auto Pompe a mouvement alternatif

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US744547A (en) * 1903-02-14 1903-11-17 Ebenezer Hill Pumping-engine.
US1920146A (en) * 1930-04-24 1933-07-25 Trico Products Corp Fluid operated motor
US2301916A (en) * 1940-07-27 1942-11-17 Trico Products Corp Fuel pump
US2649332A (en) * 1948-04-28 1953-08-18 Trico Products Corp Windshield clearing system
US2675946A (en) * 1951-04-02 1954-04-20 Edward L Strempel Fluid measuring and dispensing means
US2843050A (en) * 1954-02-15 1958-07-15 Lyndus E Harper Diaphragm sludge or chemical pump
US2850981A (en) * 1956-03-08 1958-09-09 Tobin Arp Mfg Company Hydraulic pump
US2863600A (en) * 1957-02-18 1958-12-09 Edward H Pedroia Air pressure control devices for supplying air to liquid tanks
US3256825A (en) * 1964-09-04 1966-06-21 Alexander S Limpert Slurry pump
US3421448A (en) * 1967-01-11 1969-01-14 Gen Motors Corp Fluid pressure actuated reciprocable pump
US3523202A (en) * 1968-07-12 1970-08-04 Robertshaw Controls Co Vacuum operated piezoelectric ignition means and actuator therefor

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Publication number Priority date Publication date Assignee Title
US744547A (en) * 1903-02-14 1903-11-17 Ebenezer Hill Pumping-engine.
US1920146A (en) * 1930-04-24 1933-07-25 Trico Products Corp Fluid operated motor
US2301916A (en) * 1940-07-27 1942-11-17 Trico Products Corp Fuel pump
US2649332A (en) * 1948-04-28 1953-08-18 Trico Products Corp Windshield clearing system
US2675946A (en) * 1951-04-02 1954-04-20 Edward L Strempel Fluid measuring and dispensing means
US2843050A (en) * 1954-02-15 1958-07-15 Lyndus E Harper Diaphragm sludge or chemical pump
US2850981A (en) * 1956-03-08 1958-09-09 Tobin Arp Mfg Company Hydraulic pump
US2863600A (en) * 1957-02-18 1958-12-09 Edward H Pedroia Air pressure control devices for supplying air to liquid tanks
US3256825A (en) * 1964-09-04 1966-06-21 Alexander S Limpert Slurry pump
US3421448A (en) * 1967-01-11 1969-01-14 Gen Motors Corp Fluid pressure actuated reciprocable pump
US3523202A (en) * 1968-07-12 1970-08-04 Robertshaw Controls Co Vacuum operated piezoelectric ignition means and actuator therefor

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707955A (en) * 1971-06-01 1973-01-02 Borg Warner Engine apparatus
US3886914A (en) * 1973-12-14 1975-06-03 Ford Motor Co Lubricant metering system
US3913551A (en) * 1974-01-04 1975-10-21 Raymond Lee Organization Inc Protection device for engine operating on gas-oil mixture
US4142486A (en) * 1977-09-06 1979-03-06 Schreier Joseph S Fuel-oil mixing apparatus for internal-combustion engines
US4539949A (en) * 1981-10-08 1985-09-10 Outboard Marine Corporation Combined fluid pressure actuated fuel and oil pump
DE3237212A1 (de) * 1981-10-08 1983-04-28 Outboard Marine Corp., 60085 Waukegan, Ill. Kombinierte kraftstoff- und oelpumpe
DE3239578A1 (de) * 1981-11-23 1983-05-26 Outboard Marine Corp., 60085 Waukegan, Ill. Schiffsantriebsvorrichtung sowie vorrichtung zum pumpen von oel und zuliefern von einem kraftstoff/oelgemisch
US4552101A (en) * 1983-02-07 1985-11-12 Outboard Marine Corporation Fluid pressure actuated motor with pneumatically-coupled pistons
US4471728A (en) * 1983-05-09 1984-09-18 Outboard Marine Corporation Pressure-controlled stroke limiter
JPS59208114A (ja) * 1983-05-09 1984-11-26 アウトボ−ド・マ−リン・コ−ポレ−シヨン ２行程内燃機関
US4551076A (en) * 1983-10-07 1985-11-05 Outboard Marine Corporation Fluid driven pump with one-way valve in fluid inlet
US4555221A (en) * 1983-10-07 1985-11-26 Outboard Marine Corporation Fluid pumping device for use with a fluid pump
USRE32577E (en) * 1983-10-07 1988-01-12 Outboard Marine Corporation Fluid pumping device for use with a fluid pump
US4966105A (en) * 1983-12-05 1990-10-30 Sanshin Kogyo Kabushiki Kaisha Lubricating oil supply device for internal combustion engine
US4700671A (en) * 1984-01-26 1987-10-20 Sanshin Kogyo Kabushiki Kaisha Internal combustion engine provided with fuel injection device
US4583500A (en) * 1985-01-25 1986-04-22 Brunswick Corp. Marine propulsion system with automatic oil-fuel mixing
US4594970A (en) * 1985-02-11 1986-06-17 Outboard Marine Corporation Marine installation including fuel/oil mixing device
US5197417A (en) * 1991-08-02 1993-03-30 Andreas Stihl Fuel injection pump for a two-stroke engine in a work apparatus such as a motor-driven chain saw
US5197418A (en) * 1991-09-06 1993-03-30 Andreas Stihl Fuel injection pump for a two-stroke engine
GB2334311B (en) * 1996-12-11 2000-12-27 Pump Internat Ltd Diaphragm pump with integrated magnetic valve for vacuum cleaner
GB2334311A (en) * 1996-12-11 1999-08-18 Pump International Limited Diaphragm pump with integrated magnetic valve for vacuum cleaner
WO1998026180A1 (en) * 1996-12-11 1998-06-18 Pump International Limited Diaphragm pump with integrated magnetic valve for vacuum cleaner
US6085702A (en) * 1997-03-21 2000-07-11 Yamaha Hatsudoki Kabushiki Kaisha Lubrication system for an engine having a floatless carburetor
US20080246421A1 (en) * 2007-04-04 2008-10-09 Goodrich Actuation Systems Limited Actuator Arrangement
US7919938B2 (en) * 2007-04-04 2011-04-05 Goodrich Actuation Systems Limited Actuator arrangement
US20090068034A1 (en) * 2007-09-12 2009-03-12 Pumptec, Inc. Pumping system with precise ratio output
US20110056462A1 (en) * 2009-09-04 2011-03-10 Nagesh Mavinahally Four cycle engine carburetors
US10167863B1 (en) 2012-03-28 2019-01-01 Pumptec, Inc. Proportioning pump, control systems and applicator apparatus
US10724515B1 (en) * 2012-03-28 2020-07-28 Pumptec, Inc. Proportioning pump, control systems and applicator apparatus
WO2015066622A1 (en) * 2013-11-01 2015-05-07 Allegiance Corporation Pneumatic pump system and related methods
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Also Published As

Publication number Publication date
CS167290B2 (enrdf_load_stackoverflow) 1976-04-29
FR2046859B1 (enrdf_load_stackoverflow) 1973-01-12
FR2046859A1 (enrdf_load_stackoverflow) 1971-03-12
DE1930811A1 (de) 1971-01-07
GB1294716A (en) 1972-11-01

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