ES476301A1 - 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
ES476301A1
ES476301A1 ES476301A ES476301A ES476301A1 ES 476301 A1 ES476301 A1 ES 476301A1 ES 476301 A ES476301 A ES 476301A ES 476301 A ES476301 A ES 476301A ES 476301 A1 ES476301 A1 ES 476301A1
Authority
ES
Spain
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.)
Expired
Application number
ES476301A
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.)
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 ES476301A1 publication Critical patent/ES476301A1/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.
ES476301A 1977-12-23 1978-12-22 A torque-amplifying hydraulic servo-mechanism, particularly for power steering systems in motor vehicles Expired ES476301A1 (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 (1)

Publication Number Publication Date
ES476301A1 true ES476301A1 (en) 1979-06-01

Family

ID=9199293

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476301A Expired ES476301A1 (en) 1977-12-23 1978-12-22 A 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)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2934618C2 (en) * 1979-08-28 1983-06-30 Danfoss A/S, 6430 Nordborg Hydraulic torque amplifier for steering devices of motor vehicles
FR2490291A1 (en) * 1980-09-16 1982-03-19 Dba COMPACT TORQUE AMPLIFIER SERVOMECHANISM FOR POWER ASSISTED STEERING
DE3503032C2 (en) * 1985-01-30 1994-04-07 Gardner Denver Gmbh Air motor for pneumatic screwdrivers

Also Published As

Publication number Publication date
GB2010762A (en) 1979-07-04
FR2412728B1 (en) 1981-01-23
GB2010762B (en) 1982-05-06
FR2412728A1 (en) 1979-07-20

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19990405