MX152B - CONTROL VALVE FOR HYDRAULIC SELF-ELEVATION SYSTEMS - Google Patents

CONTROL VALVE FOR HYDRAULIC SELF-ELEVATION SYSTEMS

Info

Publication number
MX152B
MX152B MX9300011U MX9300011U MX152B MX 152 B MX152 B MX 152B MX 9300011 U MX9300011 U MX 9300011U MX 9300011 U MX9300011 U MX 9300011U MX 152 B MX152 B MX 152B
Authority
MX
Mexico
Prior art keywords
control valve
power output
control system
output transducer
mechanical
Prior art date
Application number
MX9300011U
Other languages
Spanish (es)
Inventor
Edward H Phillips
Original Assignee
Techco Corp
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
Priority claimed from US07/826,901 external-priority patent/US5249420A/en
Application filed by Techco Corp filed Critical Techco Corp
Publication of MX152B publication Critical patent/MX152B/en

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
    • B62D5/083—Rotary valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Multiple-Way Valves (AREA)
  • Servomotors (AREA)

Abstract

La presente invención se enfoca hacia un sistema de control hidro-mecánico o electro-hidro-mecánico empleado para el posicionamiento de un dispositivo mecánico. El sistema de control incorpora una válvula de control de centro cerrado mejorada para controlar en forma selectiva la presión diferencial aplicada a los puertos de entrada de un transductor de salida de potencia y el flujo diferencial entre ellos en respuesta a una entrada rotacional aplicada mecanicamente. El transductor de salida de potencia se usa para posicionar un dispositivo mecánico, el sistema de control es un circuito cerrado adaptado para proporcionar fluido hidráulico a una presión de suministro deseada a la válvula giratoria modificada en donde las ranuras de dispersión parasitaria se forman para proporcionar una ruta de flujo de dispersión por la válvula de control entre los puertos de entrada del transductor de salida de potencia.The present invention focuses on a hydro-mechanical or electro-hydro-mechanical control system used for positioning a mechanical device. The control system incorporates an improved closed center control valve to selectively control the differential pressure applied to the input ports of a power output transducer and the differential flow between them in response to a mechanically applied rotational input. The power output transducer is used to position a mechanical device, the control system is a closed loop adapted to supply hydraulic fluid at a desired supply pressure to the modified rotary valve where parasitic dispersion grooves are formed to provide a Dispersion flow path through the control valve between the input ports of the power output transducer.

MX9300011U 1992-01-24 1993-01-25 CONTROL VALVE FOR HYDRAULIC SELF-ELEVATION SYSTEMS MX152B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/826,901 US5249420A (en) 1991-05-10 1992-01-24 Control valve for bootstrap hydraulic systems

Publications (1)

Publication Number Publication Date
MX152B true MX152B (en) 1994-02-14

Family

ID=25247811

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9300011U MX152B (en) 1992-01-24 1993-01-25 CONTROL VALVE FOR HYDRAULIC SELF-ELEVATION SYSTEMS

Country Status (4)

Country Link
EP (1) EP0621928A4 (en)
AU (1) AU4340993A (en)
MX (1) MX152B (en)
WO (1) WO1993015330A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2407812A (en) * 1943-04-30 1946-09-17 Cain Sidney Richard Means for the remote control of fluid pressure actuated apparatus
IT1082918B (en) * 1977-03-22 1985-05-21 Pozzan Bruno TABLE WITH MODULAR ELEMENTS, PARTICULARLY FOR EDUCATIONAL USE
US4417640A (en) * 1980-07-16 1983-11-29 Tokai Trw & Co., Ltd. Electrically driven oil pressured power steering apparatus
JP2532079B2 (en) * 1987-01-30 1996-09-11 日産自動車株式会社 Rotary control valve for power steering

Also Published As

Publication number Publication date
EP0621928A4 (en) 1994-11-17
AU4340993A (en) 1993-09-01
EP0621928A1 (en) 1994-11-02
WO1993015330A1 (en) 1993-08-05

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