FR2271421B1 - - Google Patents

Info

Publication number
FR2271421B1
FR2271421B1 FR7515536A FR7515536A FR2271421B1 FR 2271421 B1 FR2271421 B1 FR 2271421B1 FR 7515536 A FR7515536 A FR 7515536A FR 7515536 A FR7515536 A FR 7515536A FR 2271421 B1 FR2271421 B1 FR 2271421B1
Authority
FR
France
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
FR7515536A
Other versions
FR2271421A1 (fr
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.)
Sundstrand Corp
Original Assignee
Sundstrand Corp
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 Sundstrand Corp filed Critical Sundstrand Corp
Publication of FR2271421A1 publication Critical patent/FR2271421A1/fr
Application granted granted Critical
Publication of FR2271421B1 publication Critical patent/FR2271421B1/fr
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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/10—Combinations of two or more pumps the pumps being of different types at least one pump being of the reciprocating positive-displacement type
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/08—Combinations of two or more pumps the pumps being of different types
    • F04B23/12—Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement type
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Rotary Pumps (AREA)
FR7515536A 1974-05-17 1975-05-16 Expired FR2271421B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/470,988 US3953153A (en) 1974-05-17 1974-05-17 Multiple displacement pump system and method

Publications (2)

Publication Number Publication Date
FR2271421A1 FR2271421A1 (fr) 1975-12-12
FR2271421B1 true FR2271421B1 (fr) 1981-05-29

Family

ID=23869855

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7515536A Expired FR2271421B1 (fr) 1974-05-17 1975-05-16

Country Status (5)

Country Link
US (2) US3953153A (fr)
JP (1) JPS50160812A (fr)
DE (1) DE2521959A1 (fr)
FR (1) FR2271421B1 (fr)
GB (1) GB1498710A (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5549594A (en) * 1978-10-03 1980-04-10 Jidosha Kiki Co Ltd Rotary hydraulic apparatus
US4259044A (en) * 1979-05-15 1981-03-31 Trw Inc. Fuel pump assembly
DE3101516A1 (de) * 1981-01-19 1982-08-26 Alfred Teves Gmbh, 6000 Frankfurt Abschaltpumpe fuer ein hydraulisches system
US4591317A (en) * 1983-04-19 1986-05-27 Sundstrand Corporation Dual pump controls
JPS60101295A (ja) * 1983-11-08 1985-06-05 Sanden Corp 圧縮容量可変型のスクロ−ル型圧縮機
US5147183A (en) * 1991-03-11 1992-09-15 Ford Motor Company Rotary vane pump having enhanced cold start priming
DE4136150A1 (de) * 1991-11-02 1993-05-06 Zf Friedrichshafen Ag, 7990 Friedrichshafen, De Fluegelzellenpumpe
US5797732A (en) * 1993-12-28 1998-08-25 Unisia Jecs Corporation Variable capacity pump having a pressure responsive relief valve arrangement
US5513732A (en) * 1994-08-05 1996-05-07 Ford Motor Company Regulation of hydraulic pressure in a system having multiple pressure sources
JP3549631B2 (ja) * 1995-06-26 2004-08-04 サンデン株式会社 可変容量型スクロール圧縮機
US6102001A (en) * 1998-12-04 2000-08-15 Woodward Governor Company Variable displacement pump fuel metering system and electrohydraulic servo-valve for controlling the same
DE10229809A1 (de) * 2002-07-03 2004-01-15 Zf Lenksysteme Gmbh Flügelzellenpumpe
US7371053B2 (en) * 2004-07-29 2008-05-13 General Motors Corporation Two-stage hydraulic pump
WO2011042105A2 (fr) * 2009-10-07 2011-04-14 Ixetic Bad Homburg Gmbh Pompe volumétrique rotative à palettes
US8596993B2 (en) * 2010-01-07 2013-12-03 Woodward, Inc. Dual-pump supply system with bypass-controlled flow regulator
US8523537B2 (en) 2010-08-23 2013-09-03 Woodward, Inc. Integral plus proportional dual pump switching system
DE102010062668A1 (de) * 2010-12-08 2012-06-14 Robert Bosch Gmbh Kraftstofffördersystem einer Brennkraftmaschine, mit einer Rotationspumpe
US8834134B2 (en) 2010-12-20 2014-09-16 Woodward, Inc. Flow sensing dual pump switching system and method
US8888466B2 (en) * 2011-05-05 2014-11-18 Johnson Controls Technology Company Compressor
US10428816B2 (en) 2016-10-24 2019-10-01 Hamilton Sundstrand Corporation Variable speed multi-stage pump

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191103688A (en) * 1911-02-14 1911-11-02 Oliver Danson North Improvements in Rotary Pumps, Engines and the like.
US2255560A (en) * 1937-02-20 1941-09-09 Siemens App Und Maschinen Gmbh Hydraulic power system
US2256459A (en) * 1941-02-12 1941-09-16 Manly Corp Fluid pressure device
US2665637A (en) * 1947-05-07 1954-01-12 Borg Warner Pumping system
US2835323A (en) * 1953-10-13 1958-05-20 Plessey Co Ltd Fuel systems for internal combustion engines and gas turbines
US2782718A (en) * 1955-05-04 1957-02-26 Vickers Inc Speed-compensated flow control
US3081706A (en) * 1960-05-09 1963-03-19 Thompson Ramo Wooldridge Inc Slipper sealing means for a dual acting pump
US3589841A (en) * 1970-01-28 1971-06-29 Gen Electric Contaminant separation from a rotary vane pump
US3639089A (en) * 1970-03-26 1972-02-01 Borg Warner Pump
US3788770A (en) * 1972-06-15 1974-01-29 Gen Motors Corp Fluid pump with flow control means

Also Published As

Publication number Publication date
DE2521959A1 (de) 1975-12-04
US4102606A (en) 1978-07-25
FR2271421A1 (fr) 1975-12-12
GB1498710A (en) 1978-01-25
JPS50160812A (fr) 1975-12-26
US3953153A (en) 1976-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse