CA1172547A - Viscosity compensating circuits - Google Patents

Viscosity compensating circuits

Info

Publication number
CA1172547A
CA1172547A CA000394065A CA394065A CA1172547A CA 1172547 A CA1172547 A CA 1172547A CA 000394065 A CA000394065 A CA 000394065A CA 394065 A CA394065 A CA 394065A CA 1172547 A CA1172547 A CA 1172547A
Authority
CA
Canada
Prior art keywords
flow
control
pump
line
viscosity
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
CA000394065A
Other languages
English (en)
French (fr)
Inventor
Frederic W. 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
Application granted granted Critical
Publication of CA1172547A publication Critical patent/CA1172547A/en
Expired 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)
CA000394065A 1981-03-06 1982-01-13 Viscosity compensating circuits Expired CA1172547A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/241,160 US4426194A (en) 1981-03-06 1981-03-06 Viscosity compensating circuits
US241,160 1981-03-06

Publications (1)

Publication Number Publication Date
CA1172547A true CA1172547A (en) 1984-08-14

Family

ID=22909495

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000394065A Expired CA1172547A (en) 1981-03-06 1982-01-13 Viscosity compensating circuits

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

Family Cites Families (13)

* 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
GB628843A (en) * 1947-02-03 1949-09-06 James Anderson Improvements in and relating to machine tools and other machines having an hydraulicfeed
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
GB1379587A (en) * 1970-12-17 1975-01-02 Bowles Fluidics Corp Air motor speed control
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
GB1451773A (en) * 1973-10-25 1976-10-06 Caterpillar Tractor Co Hydraulic control system
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.

Also Published As

Publication number Publication date
GB2123988A (en) 1984-02-08
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
FR2501308A1 (fr) 1982-09-10

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry