CA1141264A - Hydrostatic steering controller with pressure dams - Google Patents

Hydrostatic steering controller with pressure dams

Info

Publication number
CA1141264A
CA1141264A CA000336108A CA336108A CA1141264A CA 1141264 A CA1141264 A CA 1141264A CA 000336108 A CA000336108 A CA 000336108A CA 336108 A CA336108 A CA 336108A CA 1141264 A CA1141264 A CA 1141264A
Authority
CA
Canada
Prior art keywords
pressure
valve
fluid
valve members
dam
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
CA000336108A
Other languages
English (en)
French (fr)
Inventor
Maurice P. Roberts
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
Application granted granted Critical
Publication of CA1141264A publication Critical patent/CA1141264A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/09—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by means for actuating valves
    • B62D5/093—Telemotor driven by steering wheel movement
    • B62D5/097—Telemotor driven by steering wheel movement gerotor type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/083—Rotary valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86654—For plural lines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86662—Axial and radial flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Sliding Valves (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
CA000336108A 1978-09-22 1979-09-21 Hydrostatic steering controller with pressure dams Expired CA1141264A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US944,703 1978-09-22
US05/944,703 US4311171A (en) 1978-09-22 1978-09-22 Hydrostatic steering controller with pressure dams

Publications (1)

Publication Number Publication Date
CA1141264A true CA1141264A (en) 1983-02-15

Family

ID=25481912

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000336108A Expired CA1141264A (en) 1978-09-22 1979-09-21 Hydrostatic steering controller with pressure dams

Country Status (10)

Country Link
US (1) US4311171A (OSRAM)
JP (1) JPS5555060A (OSRAM)
BR (1) BR7906009A (OSRAM)
CA (1) CA1141264A (OSRAM)
DE (1) DE2938271C2 (OSRAM)
DK (1) DK150408C (OSRAM)
FR (1) FR2436701A1 (OSRAM)
GB (1) GB2032362B (OSRAM)
IT (1) IT1123271B (OSRAM)
SU (1) SU1268109A3 (OSRAM)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0083490A3 (en) * 1981-12-31 1984-05-02 Adwest Engineering Limited Rotary valve for a power assisted steering mechanism
EP0107829B2 (en) * 1982-10-29 1993-03-24 Trw Inc. Hybrid load sense vehicle hydrostatic steering system
US4475440A (en) * 1982-11-15 1984-10-09 Trw Inc. Power steering control apparatus
US4558720A (en) * 1983-03-17 1985-12-17 Eaton Corporation Closed-center controller for use with unequal area cylinder
US4570736A (en) * 1985-01-07 1986-02-18 Ford Motor Company Dual flow variable assist power steering gear mechanism
JPS63283042A (ja) * 1987-05-14 1988-11-18 Fuji Electric Co Ltd 半導体素子
US4838145A (en) * 1987-06-18 1989-06-13 The United States Of America As Represented By The Secretary Of Commerce Multiple actuator hydraulic system and rotary control valve therefor
US4804016A (en) * 1988-06-09 1989-02-14 Eaton Corporation Fluid controller with improved pressure balancing
US5101860A (en) * 1991-09-30 1992-04-07 Eaton Corporation Fluid controller and improved check valve arrangement therefor
DE19737253C2 (de) * 1997-08-27 2000-11-30 Danfoss Fluid Power As Nordbor Hydraulische Steuervorrichtung
DE19755633B4 (de) * 1997-12-15 2008-06-19 Thyssenkrupp Presta Steertec Gmbh Drehschieberventil mit geräuschmindernden Steuernuten und Verfahren und Schleifscheibe zu dessen Herstellung
US6033195A (en) * 1998-01-23 2000-03-07 Eaton Corporation Gerotor motor and improved spool valve therefor
DE202005007092U1 (de) * 2005-05-03 2005-08-11 Trw Automotive Gmbh Drehschieberventil, insbesondere für hydraulische Hilfskraftlenkungen bei Kraftfahrzeugen
RU2468262C2 (ru) * 2010-07-15 2012-11-27 Открытое акционерное общество "Павловский машиностроительный завод ВОСХОД" - ОАО "ПМЗ ВОСХОД" Гидравлический пропорциональный распределитель поворотного типа с обратной связью
ITRE20120014A1 (it) * 2012-02-28 2013-08-29 Ognibene Power Spa Dispositivo distributore per idroguida
US9435446B1 (en) * 2014-07-24 2016-09-06 Google Inc. Rotary valve with brake mode
US9611946B1 (en) 2015-08-17 2017-04-04 Google Inc. Rotary hydraulic valve
JP7242239B2 (ja) * 2018-10-09 2023-03-20 仁科工業株式会社 パワーステアリングバルブ
US11624447B2 (en) * 2019-05-13 2023-04-11 Boston Dynamics, Inc. Rotary valve assembly
DE102020106437B4 (de) 2020-03-10 2024-09-26 Danfoss Power Solutions Aps Fluidsteuereinrichtung, insbesondere als Teil einer hydraulischen Lenkeinheit
DE102020106440B4 (de) * 2020-03-10 2024-08-01 Danfoss Power Solutions Aps Hydraulische Lenkeinheit
DE102020106438B4 (de) 2020-03-10 2022-03-31 Danfoss Power Solutions Aps Fluidsteuereinrichtung, insbesondere als Teil einer hydraulischen Lenkeinheit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE25126E (en) * 1958-11-25 1962-02-20 Controller for fluid pressure operated devices
US3385057A (en) * 1964-08-25 1968-05-28 Trw Inc Hydraulic controller
US3246472A (en) * 1964-12-21 1966-04-19 Int Harvester Co Hydraulic servo system for power steering
US3380350A (en) * 1965-10-22 1968-04-30 Midwest Gage Co Inc Rotating air cylinder utilizing air as air seal
GB1151524A (en) * 1966-07-21 1969-05-07 Trw Inc Improvements in or relating to Fluid Controllers
US3600893A (en) * 1970-02-16 1971-08-24 Trw Inc Hydraulic device having pressure dam valve means
JPS4927811A (OSRAM) * 1972-07-11 1974-03-12
US3895888A (en) * 1973-10-19 1975-07-22 Trw Inc Hydrostatic control unit
US3906837A (en) * 1973-12-27 1975-09-23 Richard H Sheppard Power steering gear with torsion rod valve centering mechanism
GB1524707A (en) * 1974-09-18 1978-09-13 Eaton Corp Controller for fluid pressure operated devices
US4164892A (en) * 1976-12-22 1979-08-21 Trw Inc. Control apparatus
US4159723A (en) * 1978-02-03 1979-07-03 Danfoss A/S Control device for steering apparatus or the like

Also Published As

Publication number Publication date
IT7925910A0 (it) 1979-09-21
JPS6312837B2 (OSRAM) 1988-03-22
FR2436701B1 (OSRAM) 1984-05-11
IT1123271B (it) 1986-04-30
JPS5555060A (en) 1980-04-22
FR2436701A1 (fr) 1980-04-18
GB2032362A (en) 1980-05-08
DK150408B (da) 1987-02-23
DE2938271A1 (de) 1980-03-27
US4311171A (en) 1982-01-19
DE2938271C2 (de) 1984-01-19
SU1268109A3 (ru) 1986-10-30
DK150408C (da) 1987-10-05
GB2032362B (en) 1982-09-15
DK395179A (da) 1980-03-23
BR7906009A (pt) 1980-06-03

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Legal Events

Date Code Title Description
MKEX Expiry