CA945077A - Closed center steering and towing circuit - Google Patents

Closed center steering and towing circuit

Info

Publication number
CA945077A
CA945077A CA132,376A CA132376A CA945077A CA 945077 A CA945077 A CA 945077A CA 132376 A CA132376 A CA 132376A CA 945077 A CA945077 A CA 945077A
Authority
CA
Canada
Prior art keywords
closed center
center steering
towing
circuit
towing circuit
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
CA132,376A
Other languages
English (en)
Other versions
CA132376S (en
Inventor
Lanson Becker
Theron M. Huffman
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.)
SPX Corp
Original Assignee
General Signal 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 General Signal Corp filed Critical General Signal Corp
Application granted granted Critical
Publication of CA945077A publication Critical patent/CA945077A/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • B62D5/30—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means
    • B62D5/32—Safety devices, e.g. alternate emergency power supply or transmission means to ensure steering upon failure of the primary steering means for telemotor systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Power Steering Mechanism (AREA)
  • Vehicle Body Suspensions (AREA)
CA132,376A 1971-03-05 1972-01-13 Closed center steering and towing circuit Expired CA945077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12134271A 1971-03-05 1971-03-05

Publications (1)

Publication Number Publication Date
CA945077A true CA945077A (en) 1974-04-09

Family

ID=22396065

Family Applications (1)

Application Number Title Priority Date Filing Date
CA132,376A Expired CA945077A (en) 1971-03-05 1972-01-13 Closed center steering and towing circuit

Country Status (9)

Country Link
US (1) US3719249A (it)
JP (1) JPS5217305B1 (it)
AU (1) AU462800B2 (it)
CA (1) CA945077A (it)
DE (1) DE2208563C3 (it)
FR (1) FR2127990A5 (it)
GB (1) GB1315107A (it)
IT (1) IT948615B (it)
SE (1) SE383303B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851721A (en) * 1973-03-29 1974-12-03 Caterpillar Tractor Co Supplemental fluid supply
US3935918A (en) * 1974-09-09 1976-02-03 Caterpillar Tractor Co. Dual source hydraulic steering system
US3935917A (en) * 1974-10-18 1976-02-03 Tyrone Hydraulics, Inc. Hydraulic pump control system
US3958657A (en) * 1975-04-07 1976-05-25 Tyrone Hydraulics, Inc. Flow compensating emergency hydraulic system
US4076096A (en) * 1976-11-24 1978-02-28 Clark Equipment Company Hydraulic steering system
DE2733315C3 (de) * 1977-07-23 1985-06-20 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Zweikreis-Lenkanlage
US4243115A (en) * 1979-04-02 1981-01-06 Dresser Europe S.A. Draw bar unit
US6131687A (en) * 1994-07-08 2000-10-17 O & K Orenstein & Koppel Ag Process for actuating the steering cylinders of mobile plant and steering system therefor
US5975232A (en) * 1996-01-18 1999-11-02 Unisia Jecs Corporation Power assisted steering apparatus for automotive vehicle
US8100221B2 (en) * 2006-12-07 2012-01-24 The United States Of America As Represented By The Administrator Of The U.S. Environmental Protection Agency Engine-off power steering system
US20090314572A1 (en) * 2008-06-19 2009-12-24 Trw Automotive U.S. Llc Closed center valve steering system with adjustable pressure
US8561751B2 (en) 2011-08-09 2013-10-22 Cnh America Llc System for selectively charging and discharging a steering accumulator
CN108657272A (zh) * 2017-03-31 2018-10-16 宝沃汽车（中国）有限公司 电驱动车辆转向助力系统与方法以及电驱动车辆

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2954671A (en) * 1958-07-14 1960-10-04 Le Tourneau Westinghouse Compa Power steering means
US3083533A (en) * 1960-10-24 1963-04-02 Clark Equipment Co Hydraulic system
US3249173A (en) * 1963-12-20 1966-05-03 Clark Equipment Co Power steering system
US3407894A (en) * 1965-03-22 1968-10-29 Gen Motors Corp Auxiliary means energizing fluid steering system upon deactivation of main pump
US3424262A (en) * 1967-07-24 1969-01-28 Schmidt Karl Heinz Hydraulic power steering mechanism for a road vehicle
US3439768A (en) * 1967-10-17 1969-04-22 Caterpillar Tractor Co Hydraulic dual source steering system for vehicles
US3535877A (en) * 1969-05-09 1970-10-27 Gen Signal Corp Three-pump hydraulic system incorporating an unloader
BE755754A (fr) * 1969-09-04 1971-03-04 Caterpillar Tractor Co Système d'alimentation supplémentaire pour les éléments hydrauliques constitutifs d'un véhicule.

Also Published As

Publication number Publication date
DE2208563A1 (de) 1972-09-14
IT948615B (it) 1973-06-11
FR2127990A5 (it) 1972-10-13
US3719249A (en) 1973-03-06
AU3925272A (en) 1973-08-30
SE383303B (sv) 1976-03-08
AU462800B2 (en) 1975-06-23
DE2208563B2 (de) 1979-10-31
GB1315107A (en) 1973-04-26
JPS5217305B1 (it) 1977-05-14
DE2208563C3 (de) 1980-07-17

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