ES420137A1 - Pumps with servo-type actuation for cheek plate unloading - Google Patents

Pumps with servo-type actuation for cheek plate unloading

Info

Publication number
ES420137A1
ES420137A1 ES420137A ES420137A ES420137A1 ES 420137 A1 ES420137 A1 ES 420137A1 ES 420137 A ES420137 A ES 420137A ES 420137 A ES420137 A ES 420137A ES 420137 A1 ES420137 A1 ES 420137A1
Authority
ES
Spain
Prior art keywords
pump
pressure
side plate
servo
fluid
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
Application number
ES420137A
Other languages
Spanish (es)
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Publication of ES420137A1 publication Critical patent/ES420137A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/062—Arrangements for supercharging the working space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
    • F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
    • F04C14/265—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels being obtained by displacing a lateral sealing face

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

A method of controlling flow in a pump, comprising the steps of: pressure loading a side plate with fluid at a pressure generated by the pump, to form a plug between the inlet and outlet parts of the pump; direct the fluid discharged by the pump, at the pressure generated by the pump, to a point of use and return the used fluid to the pump; perceive a pressure gradient on opposite sides of the hole; selectively communicate with the atmosphere the pressure acting on the side plate using a servo valve; and actuate the servo valve in accordance with the variable pressure drop that occurs through the orifice as the speed of the pump varies, so as to unload the side plate and allow the outlet parts of the pump to be directly bypassed to the parts of entrance of the same in the lateral plate. (Machine-translation by Google Translate, not legally binding)
ES420137A 1972-11-02 1973-10-31 Pumps with servo-type actuation for cheek plate unloading Expired ES420137A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00303115A US3822965A (en) 1972-11-02 1972-11-02 Pumps with servo-type actuation for cheek plate unloading

Publications (1)

Publication Number Publication Date
ES420137A1 true ES420137A1 (en) 1976-05-01

Family

ID=23170609

Family Applications (1)

Application Number Title Priority Date Filing Date
ES420137A Expired ES420137A1 (en) 1972-11-02 1973-10-31 Pumps with servo-type actuation for cheek plate unloading

Country Status (11)

Country Link
US (1) US3822965A (en)
JP (1) JPS5330362B2 (en)
AR (1) AR198447A1 (en)
BR (1) BR7308550D0 (en)
CA (1) CA995976A (en)
DE (1) DE2354352C2 (en)
ES (1) ES420137A1 (en)
FR (1) FR2205945A5 (en)
GB (1) GB1445365A (en)
IT (1) IT1009532B (en)
SE (1) SE397865B (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014630A (en) * 1974-06-03 1977-03-29 Trw Inc. Power steering pump
US3930759A (en) * 1974-06-03 1976-01-06 Trw Inc. Integral housing pump with servo controlled cheek plate
BR7608091A (en) * 1975-12-09 1977-11-22 Trw Inc MOTORIZED STEERING PUMP FOR VEHICLE AND PUMP FOR SUPPLY OF FLUID TO A SYSTEM
US4072450A (en) * 1976-01-12 1978-02-07 Trw Inc. Pump assembly
DE2700522A1 (en) * 1977-01-07 1978-07-13 Borsig Gmbh ENCAPSULATED ROTARY PISTON COMPRESSOR, IN PARTICULAR REFRIGERANT COMPRESSOR
US4298316A (en) * 1978-05-01 1981-11-03 Ford Motor Company Power steering pump
JPS56156489A (en) * 1980-05-06 1981-12-03 Jidosha Kiki Co Ltd Oil pump
JPS6124712Y2 (en) * 1980-05-31 1986-07-24
US4408963A (en) * 1980-07-07 1983-10-11 Trw Inc. Power steering pump
US4373871A (en) * 1981-05-04 1983-02-15 General Motors Corporation Compact power steering pump
US4420290A (en) * 1981-05-07 1983-12-13 Trw Inc. Power steering pump
US4422834A (en) * 1981-05-07 1983-12-27 Trw Inc. Power steering pump
US4484863A (en) * 1981-10-05 1984-11-27 Hydraulic Services Inc. Rotary vane pump with undervane pumping and an auxiliary outlet
US4449506A (en) * 1981-11-25 1984-05-22 Trw Inc. Fuel supply system
JPS60203579A (en) * 1984-03-29 1985-10-15 Honda Motor Co Ltd Vehicle power steering device
US5085187A (en) * 1991-03-11 1992-02-04 Chrysler Corporation Integral engine oil pump and pressure regulator
US5290155A (en) * 1991-09-03 1994-03-01 Deco-Grand, Inc. Power steering pump with balanced porting
US5567125A (en) * 1995-01-06 1996-10-22 Trw Inc. Pump assembly with tubular bypass liner with at least one projection
DE19529807A1 (en) * 1995-08-14 1997-02-20 Luk Fahrzeug Hydraulik Double hub flywheel pump
DE19917593C2 (en) * 1999-04-19 2002-05-02 Hydraulik Ring Gmbh Hydraulic displacement machine
US6655936B2 (en) * 2001-11-14 2003-12-02 Delphi Technologies, Inc. Rotary vane pump with under-vane pump
WO2006002205A2 (en) 2004-06-21 2006-01-05 Cole Jeffrey E Truck assembly for a skateboard, wheeled platform, or vehicle
US7216876B2 (en) * 2004-06-21 2007-05-15 Cole Jeffrey E Occupant-propelled fluid powered rotary device, truck, wheeled platform, or vehicle
US7232139B2 (en) * 2004-06-21 2007-06-19 Cole Jeffrey E Truck assembly for a skateboard, wheeled platform, or vehicle
US7040638B2 (en) * 2004-06-21 2006-05-09 Jeffrey Eaton Cole Occupant-propelled fluid powered rotary device, truck, wheeled platform, or vehicle
US7635136B2 (en) * 2005-06-21 2009-12-22 Jeffrey E. Cole Truck assembly for a skateboard, wheeled platform, or vehicle
RU2327900C1 (en) * 2006-10-30 2008-06-27 Александр Анатольевич Строганов Rotary shutter machine
US9127674B2 (en) * 2010-06-22 2015-09-08 Gm Global Technology Operations, Llc High efficiency fixed displacement vane pump including a compression spring
DE102011075415A1 (en) * 2011-05-06 2012-11-08 Robert Bosch Gmbh Gear pump e.g. outer gear wheel pump, for use in fuel injection system of Otto engine to convey fuel from low pressure region into high pressure region, has axially displaceable sealing plates resiliently prestressed in direction of chamber
CN106050658B (en) * 2012-05-21 2020-10-20 纳博特斯克汽车零部件有限公司 Vacuum pump

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505191A (en) * 1947-09-18 1950-04-25 Borg Warner Pump-gear type with unloading
US2923244A (en) * 1954-03-17 1960-02-02 Thompson Ramo Wooldridge Inc Pump
US2818813A (en) * 1954-09-09 1958-01-07 Vickers Inc Power transmission
US2809588A (en) * 1955-03-07 1957-10-15 Vickers Inc Power transmission
US2835201A (en) * 1955-05-24 1958-05-20 Vickers Inc Power transmission
FR1275470A (en) * 1960-09-28 1961-11-10 Dba Sa Self-regulating gear pump
US3578888A (en) * 1969-04-18 1971-05-18 Abex Corp Fluid pump having internal rate of pressure gain limiting device

Also Published As

Publication number Publication date
SE397865B (en) 1977-11-21
GB1445365A (en) 1976-08-11
BR7308550D0 (en) 1974-08-15
US3822965A (en) 1974-07-09
AR198447A1 (en) 1974-06-21
DE2354352C2 (en) 1986-09-11
JPS4978208A (en) 1974-07-27
CA995976A (en) 1976-08-31
FR2205945A5 (en) 1974-05-31
JPS5330362B2 (en) 1978-08-26
DE2354352A1 (en) 1974-05-09
IT1009532B (en) 1976-12-20
AU6196173A (en) 1975-05-01

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19870918