FR2501308A1 - Circuit de commande a compensation de viscosite, circuit hydraulique d'alimentation a egalisation et circuit hydraulique de commande - Google Patents

Circuit de commande a compensation de viscosite, circuit hydraulique d'alimentation a egalisation et circuit hydraulique de commande Download PDF

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Publication number
FR2501308A1
FR2501308A1 FR8201324A FR8201324A FR2501308A1 FR 2501308 A1 FR2501308 A1 FR 2501308A1 FR 8201324 A FR8201324 A FR 8201324A FR 8201324 A FR8201324 A FR 8201324A FR 2501308 A1 FR2501308 A1 FR 2501308A1
Authority
FR
France
Prior art keywords
pump
control
viscosity
pressure
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.)
Granted
Application number
FR8201324A
Other languages
English (en)
French (fr)
Other versions
FR2501308B1 (enExample
Inventor
Frederick Pollman
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 FR2501308A1 publication Critical patent/FR2501308A1/fr
Application granted granted Critical
Publication of FR2501308B1 publication Critical patent/FR2501308B1/fr
Granted legal-status Critical Current

Links

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
    • F15B21/045—Compensating for variations in viscosity or temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Fluid-Pressure Circuits (AREA)
FR8201324A 1981-03-06 1982-01-28 Circuit de commande a compensation de viscosite, circuit hydraulique d'alimentation a egalisation et circuit hydraulique de commande Granted FR2501308A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/241,160 US4426194A (en) 1981-03-06 1981-03-06 Viscosity compensating circuits

Publications (2)

Publication Number Publication Date
FR2501308A1 true FR2501308A1 (fr) 1982-09-10
FR2501308B1 FR2501308B1 (enExample) 1985-04-26

Family

ID=22909495

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8201324A Granted FR2501308A1 (fr) 1981-03-06 1982-01-28 Circuit de commande a compensation de viscosite, circuit hydraulique d'alimentation a egalisation et circuit hydraulique de commande

Country Status (6)

Country Link
US (1) US4426194A (enExample)
JP (1) JPS57157807A (enExample)
CA (1) CA1172547A (enExample)
DE (1) DE3207812A1 (enExample)
FR (1) FR2501308A1 (enExample)
GB (2) GB2094511B (enExample)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570521B1 (fr) * 1984-09-18 1987-12-11 Renault Dispositif de regulation a deux domaines de pression
JPS61136047A (ja) * 1984-12-04 1986-06-23 Nissan Motor Co Ltd 調圧バルブ
US4813446A (en) * 1987-04-06 1989-03-21 Pall Corporation Automatic pressurized reservoir bleed valve
DE3733740A1 (de) * 1987-10-06 1989-04-20 Danfoss As Daempfungsanordnung zur schwingungsdaempfung von mit druckfluessigkeit gesteuerten ventilen
US4951466A (en) * 1989-06-12 1990-08-28 General Electric Company Warm-up control for transmission hydrostatic unit
JPH07122276B2 (ja) * 1989-07-07 1995-12-25 油谷重工株式会社 建設機械の油圧ポンプ制御回路
FI87918C (fi) * 1989-12-19 1993-03-10 Kone Oy Styrventil foer en hydraulisk hiss
FI87917C (fi) * 1989-12-19 1993-03-10 Kone Oy Styrventil foer en hydraulisk hiss
US5077972A (en) * 1990-07-03 1992-01-07 Caterpillar Inc. Load pressure duplicating circuit
DE4107977C2 (de) * 1991-03-13 1999-05-12 Bosch Gmbh Robert Einrichtung zur Regelung der Fördermenge einer hydrostatischen Pumpe
DE69306738T2 (de) * 1992-03-09 1997-04-03 Hitachi Construction Machinery Co., Ltd., Tokio/Tokyo Hydraulisches antriebsystem
US5305793A (en) * 1992-09-16 1994-04-26 Pall Corporation Automatic pressurized reservoir bleed valve
US5762134A (en) * 1996-02-20 1998-06-09 Ford Global Technologies, Inc. Hydraulic temperature compensated cooler bypass control for an automatic transmission
US5890509A (en) * 1997-03-31 1999-04-06 Ford Global Technologies, Inc. Hydraulic temperature compensated cooler bypass control for an automatic transmission
US6453668B1 (en) * 2000-07-12 2002-09-24 Deere & Company Transmission with cold start valve
US6477836B1 (en) 2000-10-26 2002-11-12 Caterpillar Inc. Pilot control system
KR100641397B1 (ko) * 2005-09-15 2006-11-01 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 유압제어시스템
JP6303994B2 (ja) * 2014-11-28 2018-04-04 株式会社デンソー 車両の油圧供給装置
CA3039286A1 (en) 2018-04-06 2019-10-06 The Raymond Corporation Systems and methods for efficient hydraulic pump operation in a hydraulic system
JP7500535B2 (ja) * 2021-12-28 2024-06-17 株式会社クボタ 作業機の油圧システム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628843A (en) * 1947-02-03 1949-09-06 James Anderson Improvements in and relating to machine tools and other machines having an hydraulicfeed
GB1379587A (en) * 1970-12-17 1975-01-02 Bowles Fluidics Corp Air motor speed control
GB1451773A (en) * 1973-10-25 1976-10-06 Caterpillar Tractor Co Hydraulic control system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2005731A (en) 1930-06-16 1935-06-25 Cincinnati Milling Machine Co Viscosity compensating system
US2238061A (en) 1938-05-12 1941-04-15 Manly Corp Fluid pressure system and control therefor
US2297408A (en) 1938-11-04 1942-09-29 Hardebeck Carl Fluid meter
US3556160A (en) 1968-01-26 1971-01-19 Cummins Engine Co Inc Multifuel compensator
US3687160A (en) 1970-10-21 1972-08-29 Caterpillar Tractor Co Thermal compensator valve for differential pressure devices
DE2331282C3 (de) 1973-06-15 1978-04-20 Aeg-Kanis Turbinenfabrik Gmbh, 8500 Nuernberg Einrichtung zur Drehzahlregelung
US3820920A (en) 1972-12-18 1974-06-28 Sperry Rand Corp Power transmission
US4032259A (en) 1976-01-08 1977-06-28 E. I. Du Pont De Nemours And Company Method and apparatus for measuring fluid flow in small bore conduits
DE2701302C2 (de) 1977-01-14 1982-06-24 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Automotive Steuerung für einen hydrostatischen Fahrantrieb
DE2840687A1 (de) 1978-09-19 1980-04-03 Bosch Gmbh Robert Einrichtung zur regelung des foerderstroms und zur begrenzung des foerderdrucks einer verstellbaren pumpe.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628843A (en) * 1947-02-03 1949-09-06 James Anderson Improvements in and relating to machine tools and other machines having an hydraulicfeed
GB1379587A (en) * 1970-12-17 1975-01-02 Bowles Fluidics Corp Air motor speed control
GB1451773A (en) * 1973-10-25 1976-10-06 Caterpillar Tractor Co Hydraulic control system

Also Published As

Publication number Publication date
GB2123988A (en) 1984-02-08
CA1172547A (en) 1984-08-14
GB2094511A (en) 1982-09-15
DE3207812A1 (de) 1982-09-16
JPS57157807A (en) 1982-09-29
FR2501308B1 (enExample) 1985-04-26
GB2123988B (en) 1985-05-22
GB8322748D0 (en) 1983-09-28
GB2094511B (en) 1985-05-30
US4426194A (en) 1984-01-17

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