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GB2010762A - A torque-amplifying hydraulic servo-mechanism, particularly for power steering systems in motor vehicles - Google Patents

A torque-amplifying hydraulic servo-mechanism, particularly for power steering systems in motor vehicles

Info

Publication number
GB2010762A
GB2010762A GB7849268A GB7849268A GB2010762A GB 2010762 A GB2010762 A GB 2010762A GB 7849268 A GB7849268 A GB 7849268A GB 7849268 A GB7849268 A GB 7849268A GB 2010762 A GB2010762 A GB 2010762A
Authority
GB
United Kingdom
Prior art keywords
torque
power steering
steering systems
motor vehicles
motor
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.)
Granted
Application number
GB7849268A
Other versions
GB2010762B (en
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.)
DBA SA
Original Assignee
DBA SA
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 DBA SA filed Critical DBA SA
Publication of GB2010762A publication Critical patent/GB2010762A/en
Application granted granted Critical
Publication of GB2010762B publication Critical patent/GB2010762B/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
    • B62D5/10—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 power unit
    • B62D5/14—Rotary motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Motors (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)

Abstract

A torque-amplifying hydraulic servo-mechanism of the kind including a rotary hydraulic motor and a rotary hydraulic distributor, said motor being of the sliding vane type and the distributor of the 'face', open-centre type. According to the invention, the rotor (50) of the hydraulic motor includes two diametrically opposite cylindrical surfaces (90) in contact with the stator bore and each extending over an arc equal to that between two adjacent vanes (94), and two interconnecting portions each having two flat faces (106,108) interconnected by a cylindrical surface portion (104); and the number of vanes (94) is advantageously four times the number of said surfaces (90), that is eight. The servo-mechanism thus designed may be advantageously used in power steering systems for motor vehicles, and produces an output torque substantially constant irrespective of the relative position of the rotor and stator of the hydraulic motor. <IMAGE>
GB7849268A 1977-12-23 1978-12-20 Torque-amplifying hydraulic servo-mechanism particularly for power steering systems in motor vehicles Expired GB2010762B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7739037A FR2412728A1 (en) 1977-12-23 1977-12-23 TORQUE AMPLIFIER HYDRAULIC SERVO-MECHANISM, ESPECIALLY FOR POWER STEERING OF A MOTOR VEHICLE

Publications (2)

Publication Number Publication Date
GB2010762A true GB2010762A (en) 1979-07-04
GB2010762B GB2010762B (en) 1982-05-06

Family

ID=9199293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7849268A Expired GB2010762B (en) 1977-12-23 1978-12-20 Torque-amplifying hydraulic servo-mechanism particularly for power steering systems in motor vehicles

Country Status (3)

Country Link
ES (1) ES476301A1 (en)
FR (1) FR2412728A1 (en)
GB (1) GB2010762B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934618A1 (en) * 1979-08-28 1981-03-12 Danfoss A/S, 6430 Nordborg HYDRAULIC TORQUE AMPLIFIER, ESPECIALLY FOR STEERING DEVICES.
DE3136553A1 (en) * 1980-09-16 1982-06-03 D.B.A. Bendix Lockheed Air Equipement S.A., 93521 Saint-Denis COMPACT SERVOMECHANISM FOR TORQUE GAIN IN POWER STEERING SYSTEMS
GB2172055A (en) * 1985-01-30 1986-09-10 Gardner Denver Gmbh Reversible compressed air motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934618A1 (en) * 1979-08-28 1981-03-12 Danfoss A/S, 6430 Nordborg HYDRAULIC TORQUE AMPLIFIER, ESPECIALLY FOR STEERING DEVICES.
DK150934B (en) * 1979-08-28 1987-09-28 Danfoss As HYDRAULIC TORQUE AMPLIFIER FOR VEHICLE CONTROLS
DE3136553A1 (en) * 1980-09-16 1982-06-03 D.B.A. Bendix Lockheed Air Equipement S.A., 93521 Saint-Denis COMPACT SERVOMECHANISM FOR TORQUE GAIN IN POWER STEERING SYSTEMS
GB2172055A (en) * 1985-01-30 1986-09-10 Gardner Denver Gmbh Reversible compressed air motor
GB2172055B (en) * 1985-01-30 1989-06-07 Gardner Denver Gmbh Compressed air motor for a compressed air wrench

Also Published As

Publication number Publication date
ES476301A1 (en) 1979-06-01
FR2412728B1 (en) 1981-01-23
FR2412728A1 (en) 1979-07-20
GB2010762B (en) 1982-05-06

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Legal Events

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

Effective date: 19951220