DE2861636D1 - Hydraulic system with an open centre valve and a power assisted steering gear incorporating the system - Google Patents

Hydraulic system with an open centre valve and a power assisted steering gear incorporating the system

Info

Publication number
DE2861636D1
DE2861636D1 DE7878300634T DE2861636T DE2861636D1 DE 2861636 D1 DE2861636 D1 DE 2861636D1 DE 7878300634 T DE7878300634 T DE 7878300634T DE 2861636 T DE2861636 T DE 2861636T DE 2861636 D1 DE2861636 D1 DE 2861636D1
Authority
DE
Germany
Prior art keywords
steering gear
assisted steering
power assisted
open centre
centre valve
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
DE7878300634T
Other languages
English (en)
Inventor
Frederick John Adams
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.)
TRW Steering Systems Ltd
Original Assignee
TRW Steering Systems Ltd
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 Steering Systems Ltd filed Critical TRW Steering Systems Ltd
Application granted granted Critical
Publication of DE2861636D1 publication Critical patent/DE2861636D1/de
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
    • B62D5/08—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
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7784—Responsive to change in rate of fluid flow
    • Y10T137/7787—Expansible chamber subject to differential pressures
    • Y10T137/7788—Pressures across fixed choke
    • 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
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87177—With bypass
    • Y10T137/87185—Controlled by supply or exhaust valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Rotary Pumps (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
DE7878300634T 1977-11-24 1978-11-16 Hydraulic system with an open centre valve and a power assisted steering gear incorporating the system Expired DE2861636D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4895977 1977-11-24

Publications (1)

Publication Number Publication Date
DE2861636D1 true DE2861636D1 (en) 1982-03-25

Family

ID=10450598

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7878300634T Expired DE2861636D1 (en) 1977-11-24 1978-11-16 Hydraulic system with an open centre valve and a power assisted steering gear incorporating the system

Country Status (10)

Country Link
US (1) US4429621A (de)
EP (1) EP0002328B1 (de)
JP (1) JPS54100034A (de)
AU (1) AU526159B2 (de)
BR (1) BR7807686A (de)
CA (1) CA1099195A (de)
DE (1) DE2861636D1 (de)
ES (1) ES475399A1 (de)
GB (1) GB2008508B (de)
IT (1) IT1160947B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829064B2 (de) * 1978-07-01 1981-02-12 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydraulische Hilfskraftlenkung für Kraftfahrzeuge
DE2857451B2 (de) * 1978-07-01 1981-05-14 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydraulische Hilfskraftlenkung für Kraftfahrzeuge
DE2835815C2 (de) * 1978-08-16 1986-09-18 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Drehschieberlenkventil für Hilfskraftlenkungen
DE2843592C3 (de) * 1978-10-06 1981-11-19 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hilfskraftlenkgetriebe
DE2845301C3 (de) * 1978-10-18 1981-06-25 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Lenkventil für Hilfskraftlenkungen
ES505159A0 (es) * 1981-08-04 1982-06-16 Bendiberica Sa Perfeccionamientos en distribuidores fluidodinamicos
US4768604A (en) * 1987-07-06 1988-09-06 General Motors Corporation Power steering system
US4819545A (en) * 1987-07-28 1989-04-11 Trw Inc. Power steering system
GB2233291B (en) * 1989-06-23 1993-02-24 Trw Cam Gears Ltd A vehicle power assisted steering system
US5505276A (en) * 1994-10-20 1996-04-09 Trw Inc. Poer steering system with minimum pressure maintained within the power steering motor
SE525018C2 (sv) * 2003-03-21 2004-11-09 Parker Hannifin Ab Anordning för styrning av en hydrauliskt driven motor
EP1641373A1 (de) 2003-06-27 2006-04-05 Koninklijke Philips Electronics N.V. Beutel mit seitenfalten zum tragen eines fluides für eine persönliche hygienevorrichtung
DE202004012963U1 (de) * 2004-08-18 2004-10-14 Trw Automotive Gmbh Hydraulisches Servolenkventilgehäuse
DE102005051664A1 (de) * 2005-10-28 2007-05-24 Bayerische Motoren Werke Ag Hydraulisches Lenksystem mit einem Aktuator
CN103481942B (zh) * 2013-09-26 2017-06-06 浙江吉利控股集团有限公司 汽车转向器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1293192A (en) * 1970-05-15 1972-10-18 Cam Gears Ltd Power assisted vehicle steering
DE2126085A1 (de) * 1971-05-26 1972-12-07 Daimler Benz Ag, 7000 Stuttgart Fahrzeugantnebsbrennkraftmaschine
DE2323522A1 (de) * 1973-05-10 1974-11-28 Zahnradfabrik Friedrichshafen Hydraulische lenkbegrenzung fuer eine hilfskraftlenkeinrichtung, insbesondere fuer kraftfahrzeuge
DE2426712C3 (de) * 1974-06-01 1979-10-31 Integral Hydraulik Langen & Co, 4000 Duesseldorf Servolenkeinrichtung für Fahrzeuge, insbesondere solche mit Speicher-Lenkungen
US3942783A (en) * 1974-06-26 1976-03-09 Hart Schaffner & Marx Clamping mechanism for cloth spreading machine catcher

Also Published As

Publication number Publication date
EP0002328B1 (de) 1982-02-17
IT1160947B (it) 1987-03-11
EP0002328A1 (de) 1979-06-13
ES475399A1 (es) 1980-02-01
US4429621A (en) 1984-02-07
JPS54100034A (en) 1979-08-07
GB2008508A (en) 1979-06-06
GB2008508B (en) 1982-07-21
IT7869676A0 (it) 1978-11-23
BR7807686A (pt) 1979-07-31
CA1099195A (en) 1981-04-14
AU526159B2 (en) 1982-12-23
AU4183878A (en) 1979-05-31
JPS6228031B2 (de) 1987-06-18

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee