GB1452117A - Pressure fluid control unit - Google Patents

Pressure fluid control unit

Info

Publication number
GB1452117A
GB1452117A GB5856073A GB5856073A GB1452117A GB 1452117 A GB1452117 A GB 1452117A GB 5856073 A GB5856073 A GB 5856073A GB 5856073 A GB5856073 A GB 5856073A GB 1452117 A GB1452117 A GB 1452117A
Authority
GB
United Kingdom
Prior art keywords
valve pistons
input shaft
tappets
springs
reaction
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
GB5856073A
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.)
Thomas K H
Langen and Co
Original Assignee
Thomas K H
Langen and Co
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 Thomas K H, Langen and Co filed Critical Thomas K H
Publication of GB1452117A publication Critical patent/GB1452117A/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

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)
  • Servomotors (AREA)

Abstract

1452117 Power-assisted steering mechanism K H THOMAS [trading as LANGEN & CO] 18 Dec 1973 [21 Dec 1972] 58560/73 Addition to 1,439,038 Heading B7H In a power-assisted steering control unit comprising two valve pistons 8, 9 which are actuated in response to relative rotation between an input shaft 1 and output member 2 connected by a torsion bar 3 and have reaction faces or separate reaction elements located in reaction chambers 19, 20 subject to the pressures in the chambers of a servo cylinder controlled by the valve pistons, the transmission of force from the input shaft 1 to the valve pistons 8, 9 is effected through tappets 10, 11 having lost motion and through springs 15, 16 interposed between the input shaft and the valve pistons in parallel with the tappets 10, 11. The tappets 10, 11 are actuated through adjusting screws 12, 13 in a lever 14 on the input shaft 1. The springs 15, 16 may be under slight stress even when relaxed to the extent of the lost motion. In another embodiment the torsion bar 3 is replaced by a pre-stressed C-spring, the pre-stress in the spring being greater than the resistance offered by the springs 15, 16 to displacement of the valve pistons by pressure rises occuring in the reaction chambers due to external forces acting on the servo cylinder.
GB5856073A 1972-12-21 1973-12-18 Pressure fluid control unit Expired GB1452117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722262575 DE2262575C3 (en) 1972-12-21 1972-12-21 Hydraulic pressure medium control system for the route control of a double-acting servo motor

Publications (1)

Publication Number Publication Date
GB1452117A true GB1452117A (en) 1976-10-13

Family

ID=5865036

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5856073A Expired GB1452117A (en) 1972-12-21 1973-12-18 Pressure fluid control unit

Country Status (4)

Country Link
JP (1) JPS4996424A (en)
DE (1) DE2262575C3 (en)
GB (1) GB1452117A (en)
IT (1) IT1048146B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361893C3 (en) * 1972-08-26 1982-04-29 Integral Hydraulik & Co, 4000 Düsseldorf Pressure fluid sequence control for power steering
DE19612872A1 (en) * 1996-03-30 1997-10-02 Zahnradfabrik Friedrichshafen Power steering, in particular for motor vehicles

Also Published As

Publication number Publication date
DE2262575C3 (en) 1978-04-20
IT1048146B (en) 1980-11-20
DE2262575B2 (en) 1977-08-25
JPS4996424A (en) 1974-09-12
DE2262575A1 (en) 1974-07-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee