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ES482914A1 - Hydraulically operated steering system - Google Patents

Hydraulically operated steering system

Info

Publication number
ES482914A1
ES482914A1 ES482914A ES482914A ES482914A1 ES 482914 A1 ES482914 A1 ES 482914A1 ES 482914 A ES482914 A ES 482914A ES 482914 A ES482914 A ES 482914A ES 482914 A1 ES482914 A1 ES 482914A1
Authority
ES
Spain
Prior art keywords
valves
steering system
actuating means
adjusting motor
seat
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
ES482914A
Other languages
Spanish (es)
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.)
ZF Friedrichshafen AG
Original Assignee
ZF Friedrichshafen AG
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 ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Publication of ES482914A1 publication Critical patent/ES482914A1/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
    • B62D5/20—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application
    • B62D5/22—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle specially adapted for particular type of steering gear or particular application for rack-and-pinion 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Safety Valves (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A hydraulically operated steering system for vehicles comprises an actuating means 38 constituted by the rack 40 of a rack pinion steering gear 40, 42, and an adjusting motor 21 having two working chambers 20 and 20' with which are respectively associated pairs of spring-loaded seat-type valves 22,24 and 22', 24'. Valves 22, 22' are inlet valves each of which is connected to a hydraulic pressure accumulator 4 and is urged against its seat 30, 30' by a compression spring 26, 26'. The two inlet valves 22 and 22' are actuated through the springs 26, 26' by the actuating means 38. Valves 24 and 24' are outlet valves each of which is connected through a common return flow connection 58 to a reservoir 59 and is urged against its seat 36, 36' by a tension spring 32, 32' connected to the actuating means 38. The piston rod 48 and piston 48 of the adjusting motor 21 are arranged fixed on the vehicle, while the cylinder casing 50 is movable in relation to them. The valve seats 30, 30' and 36, 36' are rigidly connected to the cylinder casing 50. In the neutral position of the steering system the inlet valves 22 and 22' are closed. They are adjusted to a pressure which is somewhat higher than the pressure in the accumulator 4. Both outlet valves 24, 24' are open. Both working chambers 20, 20' of the adjusting motor 21 are unpressurised.
ES482914A 1978-08-05 1979-07-27 Hydraulically operated steering system Expired ES482914A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2834420A DE2834420C2 (en) 1978-08-05 1978-08-05 Steering valve

Publications (1)

Publication Number Publication Date
ES482914A1 true ES482914A1 (en) 1980-04-16

Family

ID=6046332

Family Applications (1)

Application Number Title Priority Date Filing Date
ES482914A Expired ES482914A1 (en) 1978-08-05 1979-07-27 Hydraulically operated steering system

Country Status (16)

Country Link
JP (1) JPS5539881A (en)
AR (1) AR220213A1 (en)
BE (1) BE878062A (en)
BR (1) BR7904925A (en)
CA (1) CA1113016A (en)
DD (1) DD145388A5 (en)
DE (1) DE2834420C2 (en)
DK (1) DK319279A (en)
ES (1) ES482914A1 (en)
FR (1) FR2432420A1 (en)
GB (1) GB2026965B (en)
IT (1) IT1117438B (en)
NL (1) NL7904822A (en)
PL (1) PL217528A1 (en)
SE (1) SE7906529L (en)
YU (1) YU41649B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2838789C2 (en) * 1978-09-06 1987-03-12 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Steering valve with closed center for actuating the servo motor of a vehicle power steering system
JPS578332A (en) * 1980-06-16 1982-01-16 Nissan Motor Co Ltd Idle up unit for power steering
JPH08221Y2 (en) * 1985-05-20 1996-01-10 トヨタ自動車株式会社 Front and rear wheel steering device
US5934406A (en) * 1997-05-29 1999-08-10 Caterpillar Inc. Jerk control valve for pilot operated steering system
EP2138720A3 (en) * 2008-06-24 2010-01-20 MALI Holding AG Adjustment device for the adjustment of axial piston engines.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2131276C3 (en) * 1971-06-24 1979-03-01 Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen Power steering device for motor vehicles with central hydraulics
DE2242022C3 (en) * 1972-08-26 1980-11-20 Integral Hydraulik & Co, 4000 Duesseldorf Pressure medium sequence control for power steering or the like
IT992718B (en) * 1972-08-26 1975-09-30 Langen & Co CONTROL APPARATUS OPERATING WITH A PRESSURE VESSEL
DE2301415A1 (en) * 1973-01-12 1974-07-18 Daimler Benz Ag POWER STEERING FOR VEHICLES, IN PARTICULAR FOR MOTOR VEHICLES
DE2654366C2 (en) * 1976-12-01 1984-08-23 Gebr. Claas, 4834 Harsewinkel Hydraulic valve device

Also Published As

Publication number Publication date
PL217528A1 (en) 1980-06-02
GB2026965B (en) 1983-03-02
SE7906529L (en) 1980-04-03
JPS5539881A (en) 1980-03-21
IT1117438B (en) 1986-02-17
BE878062A (en) 1979-12-03
GB2026965A (en) 1980-02-13
AR220213A1 (en) 1980-10-15
CA1113016A (en) 1981-11-24
YU41649B (en) 1987-12-31
DE2834420C2 (en) 1986-11-27
DD145388A5 (en) 1980-12-10
FR2432420B1 (en) 1982-09-10
BR7904925A (en) 1980-04-22
YU153879A (en) 1983-02-28
DK319279A (en) 1980-02-06
NL7904822A (en) 1980-02-07
DE2834420A1 (en) 1980-02-14
IT7949931A0 (en) 1979-08-01
FR2432420A1 (en) 1980-02-29

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