CA1032855A - Systeme hydraulique de priorite au guidage - Google Patents

Systeme hydraulique de priorite au guidage

Info

Publication number
CA1032855A
CA1032855A CA250,700A CA250700A CA1032855A CA 1032855 A CA1032855 A CA 1032855A CA 250700 A CA250700 A CA 250700A CA 1032855 A CA1032855 A CA 1032855A
Authority
CA
Canada
Prior art keywords
priority
system hydraulic
steer system
steer
hydraulic
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
CA250,700A
Other languages
English (en)
Inventor
John E. Wible
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.)
Caterpillar Industrial Inc
Original Assignee
Towmotor 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 Towmotor Corp filed Critical Towmotor Corp
Application granted granted Critical
Publication of CA1032855A publication Critical patent/CA1032855A/fr
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
    • B62D5/065—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 specially adapted means for varying pressurised fluid supply based on need, e.g. on-demand, variable assist
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Power Steering Mechanism (AREA)
  • Fluid-Pressure Circuits (AREA)
CA250,700A 1975-07-11 1976-04-21 Systeme hydraulique de priorite au guidage Expired CA1032855A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/595,202 US4002220A (en) 1975-07-11 1975-07-11 Priority steer system--hydraulic

Publications (1)

Publication Number Publication Date
CA1032855A true CA1032855A (fr) 1978-06-13

Family

ID=24382200

Family Applications (1)

Application Number Title Priority Date Filing Date
CA250,700A Expired CA1032855A (fr) 1975-07-11 1976-04-21 Systeme hydraulique de priorite au guidage

Country Status (3)

Country Link
US (1) US4002220A (fr)
CA (1) CA1032855A (fr)
GB (1) GB1499639A (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643312C2 (de) * 1976-09-25 1983-01-13 Deere & Co., Moline, Ill., US, Niederlassung Deere & Co. European Office, 6800 Mannheim Elektrische Schaltvorrichtung für ein Wegeventil
US4144946A (en) * 1977-07-05 1979-03-20 Towmotor Corporation Hydraulic priority circuit
DE2741497C2 (de) * 1977-09-15 1981-09-17 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Hydraulikanlage für den Hubantrieb eines Hubladers
GB2030529B (en) * 1978-09-25 1982-12-15 Eaton Gmbh Circuit controlling the energisation of power steering in a battery powered vehicle
US4449365A (en) * 1979-11-19 1984-05-22 Allis-Chalmers Corporation Lift, tilt and steering control for a lift truck
US4343151A (en) * 1980-05-16 1982-08-10 Caterpillar Tractor Co. Series - parallel selector for steering and implement
US4337620A (en) * 1980-07-15 1982-07-06 Eaton Corporation Load sensing hydraulic system
US4422290A (en) * 1981-08-26 1983-12-27 General Signal Hydraulic control system for governing steering and implement actuators
JPH0741842B2 (ja) * 1985-10-18 1995-05-10 東海テイ−ア−ルダブリユ−株式会社 車速感応式パワ−ステアリング装置
JPH07103593B2 (ja) * 1990-06-06 1995-11-08 株式会社小松製作所 積み込み作業車両の制御装置及び方法
DE4301012C2 (de) * 1993-01-16 1997-04-17 Hydraulik Nord Gmbh Speicherschaltung für einen Lenkkreislauf
DE4316339A1 (de) * 1993-05-15 1994-11-17 Teves Gmbh Alfred Druckmittelversorgungseinrichtung
US5921342A (en) * 1996-02-05 1999-07-13 Unisia Jecs Corporation Power assisted steering apparatus for automotive vehicle
DE19735647C1 (de) * 1997-08-16 1999-02-25 Trw Fahrwerksyst Gmbh & Co Verfahren zum Steuern des Lenkvolumenstromes einer hydraulischen Servolenkeinrichtung für Kraftfahrzeuge
DE19828963A1 (de) * 1998-06-29 1999-12-30 Mannesmann Rexroth Ag Hydraulische Schaltung
DE19834765A1 (de) * 1998-08-01 2000-02-03 Hydraulik Ring Gmbh Hydrauliksystem zum Betätigen von wenigstens zwei Funktionsbereichen in einem Fahrzeug
DE10065551B4 (de) * 2000-12-28 2007-11-08 Sauer-Danfoss Holding Aps Lenksystem für ein Fahrzeug
US6886657B2 (en) * 2002-03-19 2005-05-03 Hitachi, Ltd. Power steering system
JP4443457B2 (ja) * 2005-04-11 2010-03-31 日立オートモティブシステムズ株式会社 パワーステアリング装置
US8413572B1 (en) 2006-11-22 2013-04-09 Westendorf Manufacturing, Co. Auto attachment coupler with abductor valve
US7559270B2 (en) * 2006-11-22 2009-07-14 Westendorf Manufacturing Co., Inc. Hydraulic cylinder system
US8806862B2 (en) * 2007-12-20 2014-08-19 Parker-Hannifin Corporation Smart flow sharing system
JP5987456B2 (ja) * 2012-04-27 2016-09-07 いすゞ自動車株式会社 車両用油圧回路及び車両
US11377144B2 (en) 2019-06-13 2022-07-05 Cnh Industrial America Llc Quick response steering system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880586A (en) * 1955-10-25 1959-04-07 Gen Motors Corp Fluid system with priority valve
US2850879A (en) * 1956-06-29 1958-09-09 Thompson Prod Inc Multiple accessory control valve
US2875843A (en) * 1957-06-05 1959-03-03 Bendix Aviat Corp Combined hydraulic system for power steering and power brakes
US2995382A (en) * 1960-05-19 1961-08-08 Gen Motors Corp Reserve hydraulic fluid system
US3334705A (en) * 1965-08-06 1967-08-08 Int Harvester Co Priority valve for closed center system
US3911679A (en) * 1974-12-26 1975-10-14 Allis Chalmers Closed center hydraulic system with pump and accumulator output for high speed lift

Also Published As

Publication number Publication date
GB1499639A (en) 1978-02-01
US4002220A (en) 1977-01-11

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