ES2002832A6 - Un mecanismo hidraulico de direccion asistida - Google Patents

Un mecanismo hidraulico de direccion asistida

Info

Publication number
ES2002832A6
ES2002832A6 ES8602527A ES8602527A ES2002832A6 ES 2002832 A6 ES2002832 A6 ES 2002832A6 ES 8602527 A ES8602527 A ES 8602527A ES 8602527 A ES8602527 A ES 8602527A ES 2002832 A6 ES2002832 A6 ES 2002832A6
Authority
ES
Spain
Prior art keywords
chamber
piston
valve
chamber portion
work stroke
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
ES8602527A
Other languages
English (en)
Inventor
William T Rabe
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
TRW Inc
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 TRW Inc filed Critical TRW Inc
Publication of ES2002832A6 publication Critical patent/ES2002832A6/es
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
    • 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
    • B62D5/061—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle provided with effort, steering lock, or end-of-stroke limiters
    • 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)

Abstract

UN MECANISMO HIDRAULICO DE DIRECCION ASISTIDA. UN MECANISMO DE DIRECCION ASISTIDA PARA USO EN VEHICULOS CON UNA CAJA QUE DEFINE UNA CAMARA. UN PISTON DIVIDE LA CAMARA EN PORCIONES DE CAMARA PRIMERA Y SEGUNDA. EL PISTON PUEDE MOVERSE EN SU CARRERA DE TRABAJO EN DIRECCIONES CONTRARIAS EN LA CAMARA. UNA VALVULA DE DIRECCION DIRIGE FLUIDO A PRESION A LA PRIMERA PORCION DE CAMARA Y VENTEA LA SEGUNDA PORCION DE CAMARA PARA DESPLAZAR EL PISTON EN UNA PRIMERA DIRECCION, Y DIRIGE FLUIDO A PRESION A LA SEGUNDA PORCION DE CAMARA Y VENTEA LA PRIMERA PORCION DE CAMARA PARA DESPLAZAR EL PISTON EN UNA SEGUNDA DIRECCION. SE MUEVE UN EJE DE ENTRADA PARA ACCIONAR LA VALVULA DE DIRECCION. UNA VALVULA DE SEGURIDAD PONE EN COMUNICACION LAS PORCIONES DE CAMARA PRIMERA Y SEGUNDA CUANDO EL PISTON ESTA CERCA DEL FINAL DE SU CARRERA DE TRABAJO. LA VALVULA DE SEGURIDAD TIENE UN MIEMBRO DE VALVULA Y ASIENTO DE VALVULA QUE PUEDENMOVERSE ENTRE UNA POSICION CERRADA QUE BLOQUEA LA COMUNICACION ENTRE LAS CAMARAS PRIMERA YSEGUNDA, Y UNA POSICION TOTALMENTE ABIERTA QUE ESTABLECE COMUNICACION ENTRE LAS CAMARAS PRIMERA Y SEGUNDA CUANDO EL PISTON LLEGA AL FINAL DE SU CARRERA DE TRABAJO. EN RESPUESTA AL MOVIMIENTO DEL EJE DE ENTRADA, UNA CONEXION DE AJUSTE FORZADO REALIZA EL AJUSTE DE LA POSICION QUE EN EL RECORRIDO DEL PISTON EN EL QUE EL MIEMBRO DE VALVULA Y EL ASIENTO DE VALVULA SE MUEVEN RELATIVAMENTE A UNA POSICION ABIERTA.
ES8602527A 1985-10-10 1986-10-09 Un mecanismo hidraulico de direccion asistida Expired ES2002832A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/785,983 US4648307A (en) 1985-10-10 1985-10-10 Unloading valve for power steering piston with integral gear

Publications (1)

Publication Number Publication Date
ES2002832A6 true ES2002832A6 (es) 1988-10-01

Family

ID=25137231

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8602527A Expired ES2002832A6 (es) 1985-10-10 1986-10-09 Un mecanismo hidraulico de direccion asistida

Country Status (7)

Country Link
US (1) US4648307A (es)
EP (1) EP0218982B1 (es)
JP (1) JPH0662090B2 (es)
KR (1) KR890002491B1 (es)
BR (1) BR8604934A (es)
DE (1) DE3687876T2 (es)
ES (1) ES2002832A6 (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4860646A (en) * 1987-02-10 1989-08-29 Marathon Corporation Compactor with hydraulic dwell and method
US4773303A (en) * 1987-12-21 1988-09-27 Trw Inc. Apparatus and method for readjusting pressure relief poppet valves
ES2014568A6 (es) * 1988-02-04 1990-07-16 Zahnradfabrik Friedrichshafen Servodireccion hidrauloca.
EP0433347B1 (de) * 1988-09-10 1993-06-16 ZF FRIEDRICHSHAFEN Aktiengesellschaft Hilfskraftlenkung, insbesondere für kraftfahrzeuge
US5205372A (en) * 1990-07-17 1993-04-27 Koyo Seiko Co., Ltd. Hydraulic power steering device
US5205401A (en) * 1991-06-26 1993-04-27 Alpha Enterprises, Inc. Cassette security container
US5419235A (en) * 1994-02-28 1995-05-30 Trw Inc. Power steering gear assembly
US5562017A (en) * 1995-04-17 1996-10-08 Trw Inc. Reusable press fit connection of a hydraulic power apparatus and method of assembly
US5803201A (en) * 1996-06-05 1998-09-08 R. H. Sheppard Co., Inc. Hydraulic power steering gear assembly with unloading valve
CN100343106C (zh) * 2005-12-27 2007-10-17 江苏罡阳股份有限公司 汽车动力转向器内置定位卸荷装置
JP4758967B2 (ja) * 2007-05-25 2011-08-31 オートリブ ディベロップメント エイビイ シートベルトのウェビングロッキング防止装置
JP4922212B2 (ja) * 2008-03-10 2012-04-25 株式会社東海理化電機製作所 ウエビング巻取装置
CN102765419B (zh) * 2011-05-06 2014-06-18 豫北转向系统股份有限公司 循环球式汽车动力转向器行程卸荷结构
CN102815334B (zh) * 2011-06-08 2015-01-21 豫北转向系统股份有限公司 循环球式汽车动力转向器行程卸荷机构
JP5592319B2 (ja) * 2011-08-22 2014-09-17 日立オートモティブシステムズステアリング株式会社 インテグラル型パワーステアリング装置
US10647347B2 (en) * 2016-09-29 2020-05-12 Steering Solutions Ip Holding Corporation Power steering gear assembly having an end of travel valve assembly
US10550861B2 (en) * 2017-10-23 2020-02-04 Trw Automotive U.S. Llc Manually adjustable poppet valves for a power assist steering gear
US20240294208A1 (en) * 2023-03-03 2024-09-05 R.H. Sheppard Co. Inc. End of Travel Relief System for Power Steering System

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1125999A (fr) * 1955-05-04 1956-11-12 Offray & Cie Dispositif formant limiteur et réducteur automatique de pression en produisant l'arrêt à fin de course, pour vérins hydrauliques à double effet
US3092083A (en) * 1960-01-18 1963-06-04 Richard H Sheppard Piston for power steering system
GB981959A (en) * 1963-02-27 1965-02-03 Sheppard Richard H Improvements in power steering for vehicles
US3181429A (en) * 1963-09-30 1965-05-04 Allis Chalmers Mfg Co Piston and unloading valve therefor
US3315570A (en) * 1965-01-07 1967-04-25 Gen Motors Corp Pressure relieving means
US3921669A (en) * 1972-04-20 1975-11-25 Trw Inc Integral power steering gear and sintered metal valve sleeve therefor
US3896702A (en) * 1973-07-27 1975-07-29 Trw Inc Power steering gear with relief valve on power piston
US3935790A (en) * 1974-02-11 1976-02-03 Trw Inc. Integral power steering assembly
US3896703A (en) * 1974-06-24 1975-07-29 Powersteering Trust Reg Arrangement for relieving the mechanical stresses in power assisted steering for vehicles in the full-lock steering positions
JPS52109231A (en) * 1976-03-10 1977-09-13 Aisin Seiki Co Ltd Steering angle limiting device for power steering apparatus
DE2615219A1 (de) * 1976-04-08 1977-10-20 Daimler Benz Ag Abschaltventil fuer servolenkungen
DE2820567A1 (de) * 1978-05-11 1979-11-15 Zahnradfabrik Friedrichshafen Hilfskraft-lenkanlage mit druckbegrenzungsventil(en)
US4236692A (en) * 1979-04-20 1980-12-02 Acf Industries, Incorporated Controlled floating seat for gate valves
DE2930498A1 (de) * 1979-07-27 1981-02-12 Zahnradfabrik Friedrichshafen Hilfskraftlenkung, insbesondere fuer kraftfahrzeuge

Also Published As

Publication number Publication date
US4648307A (en) 1987-03-10
DE3687876T2 (de) 1993-06-17
DE3687876D1 (de) 1993-04-08
EP0218982B1 (en) 1993-03-03
KR890002491B1 (ko) 1989-07-10
KR870003913A (ko) 1987-05-06
EP0218982A3 (en) 1989-02-08
JPS6288663A (ja) 1987-04-23
BR8604934A (pt) 1988-04-19
EP0218982A2 (en) 1987-04-22
JPH0662090B2 (ja) 1994-08-17

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Legal Events

Date Code Title Description
SA6 Expiration date (snapshot 920101)

Free format text: 2006-10-09

FD1A Patent lapsed

Effective date: 20061010