CA1099195A - Hydraulic systems - Google Patents

Hydraulic systems

Info

Publication number
CA1099195A
CA1099195A CA316,320A CA316320A CA1099195A CA 1099195 A CA1099195 A CA 1099195A CA 316320 A CA316320 A CA 316320A CA 1099195 A CA1099195 A CA 1099195A
Authority
CA
Canada
Prior art keywords
valve
open center
hydraulic
center valve
hydraulic system
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
CA316,320A
Other languages
English (en)
French (fr)
Inventor
Frederick J. 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 CA1099195A publication Critical patent/CA1099195A/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
    • B62D5/08—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)
CA316,320A 1977-11-24 1978-11-16 Hydraulic systems Expired CA1099195A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB48959/77 1977-11-24
GB4895977 1977-11-24

Publications (1)

Publication Number Publication Date
CA1099195A true CA1099195A (en) 1981-04-14

Family

ID=10450598

Family Applications (1)

Application Number Title Priority Date Filing Date
CA316,320A Expired CA1099195A (en) 1977-11-24 1978-11-16 Hydraulic systems

Country Status (10)

Country Link
US (1) US4429621A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0002328B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS54100034A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU526159B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7807686A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1099195A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2861636D1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES475399A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2008508B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT1160947B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2857451C3 (de) * 1978-07-01 1987-01-22 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydraulische Hilfskraftlenkung für Kraftfahrzeuge
DE2829064B2 (de) * 1978-07-01 1981-02-12 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 (en) 2003-06-27 2006-04-05 Koninklijke Philips Electronics N.V. A pouch with side gussets for use in carrying fluid for personal hygiene device
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 (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2845901A (en) 1953-09-25 1958-08-05 Bendix Aviat Corp Back pressure producing device for hydraulic system
US3086551A (en) 1961-03-13 1963-04-23 William F Stoesser Hydraulic relief valves
US3439697A (en) 1966-04-26 1969-04-22 Monsanto Co Vent value
GB1293192A (en) * 1970-05-15 1972-10-18 Cam Gears Ltd Power assisted vehicle steering
JPS4835669B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-12-28 1973-10-30
DE2126085A1 (de) * 1971-05-26 1972-12-07 Daimler Benz Ag, 7000 Stuttgart Fahrzeugantnebsbrennkraftmaschine
US4178962A (en) 1972-10-30 1979-12-18 Tomco, Inc. Control valve with flow control means
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
DE2829064B2 (de) 1978-07-01 1981-02-12 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Hydraulische Hilfskraftlenkung für Kraftfahrzeuge

Also Published As

Publication number Publication date
EP0002328A1 (en) 1979-06-13
AU4183878A (en) 1979-05-31
DE2861636D1 (en) 1982-03-25
US4429621A (en) 1984-02-07
GB2008508B (en) 1982-07-21
EP0002328B1 (en) 1982-02-17
BR7807686A (pt) 1979-07-31
JPS6228031B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-06-18
GB2008508A (en) 1979-06-06
IT7869676A0 (it) 1978-11-23
ES475399A1 (es) 1980-02-01
AU526159B2 (en) 1982-12-23
JPS54100034A (en) 1979-08-07
IT1160947B (it) 1987-03-11

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Legal Events

Date Code Title Description
MKEX Expiry