MX153B - CONTROL VALVE CONTAINING EXHAUST HOLES PARASITES - Google Patents

CONTROL VALVE CONTAINING EXHAUST HOLES PARASITES

Info

Publication number
MX153B
MX153B MX093036U MX9300036U MX153B MX 153 B MX153 B MX 153B MX 093036 U MX093036 U MX 093036U MX 9300036 U MX9300036 U MX 9300036U MX 153 B MX153 B MX 153B
Authority
MX
Mexico
Prior art keywords
valve
grooves
control
flow
parasites
Prior art date
Application number
MX093036U
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 US07/841,322 external-priority patent/US5269215A/en
Application filed by Techco Corp filed Critical Techco Corp
Publication of MX153B publication Critical patent/MX153B/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • B62D6/02—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to vehicle speed

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)
  • Multiple-Way Valves (AREA)

Abstract

La presente invención esta dirigida a un sistema direccional de mando vehicular que contiene una válvula de control de centro abierto, la cual tiene una ganancia de flujo hidráulico substancialmente de cero a un ángulo de deflexión de entrada de cero, y además un área de orificio de control mínima. Un sub-ensamblado de válvula perfeccionado es utilizado en la válvula de control con funciones para recuperar rapidamente la ganancia hidráulica a angulos de deflexión de entrada relativamente pequeños. La estructura de válvula perfeccionada incluye pequeñas ranuras de escape transversales en un carrete de válvula que está en comunicación fluida tanto con las ranuras de distribución de flujo de entrada como con las de flujo de retorno, las ranuras de escape están configuradas para formar orificios de flujo parasitos que interconectan fluidicamente las ranuras de salida formadas en el manguito de válvula y el cual comunica con las cámaras de flujo formadas en los lados opuestos del pistón en el cilindro de mando. en concordancia, una vía de escape selectivamente variable es proporcionada a lo largo del cilindro de mando, los orificios de flujo parasitos tienen áreas uniformes y/o no uniformes para dar las características de realización del sub-ensamblado de válvula sean fabricadas sin dificultad.The present invention is directed to a directional vehicular control system containing an open center control valve, which has a hydraulic flow gain of substantially zero at an inlet deflection angle of zero, and furthermore an orifice area of minimal control. An improved valve subassembly is used in the control valve with functions to quickly recover hydraulic gain at relatively small inlet deflection angles. The improved valve structure includes small transverse exhaust grooves in a valve spool that is in fluid communication with both the inflow and return flow distribution grooves, the exhaust grooves are configured to form flow ports parasites that fluidly interconnect the outlet grooves formed in the valve sleeve and which communicate with the flow chambers formed on the opposite sides of the piston in the control cylinder. accordingly, a selectively variable exhaust path is provided along the drive cylinder, the parasite flow ports have uniform and / or non-uniform areas to give the performance characteristics of the valve sub-assembly to be manufactured without difficulty.

MX093036U 1992-02-25 1993-02-23 CONTROL VALVE CONTAINING EXHAUST HOLES PARASITES MX153B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/841,322 US5269215A (en) 1992-02-25 1992-02-25 Control valves having parasitic leakage orifices
US88553392A 1992-05-19 1992-05-19

Publications (1)

Publication Number Publication Date
MX153B true MX153B (en) 1994-02-14

Family

ID=27126251

Family Applications (1)

Application Number Title Priority Date Filing Date
MX093036U MX153B (en) 1992-02-25 1993-02-23 CONTROL VALVE CONTAINING EXHAUST HOLES PARASITES

Country Status (4)

Country Link
US (1) US5505119A (en)
AU (1) AU3617193A (en)
MX (1) MX153B (en)
WO (1) WO1993017245A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5742141A (en) * 1996-06-04 1998-04-21 Ford Motor Company Semi-autonomous parking control system for a vehicle providing tactile feedback to a vehicle operator
US8190348B2 (en) * 2009-06-02 2012-05-29 Honda Motor Co., Ltd. System and method for damping vibrations in a motor vehicle
DE102020106437B4 (en) 2020-03-10 2024-09-26 Danfoss Power Solutions Aps Fluid control device, in particular as part of a hydraulic steering unit
DE102020106440B4 (en) * 2020-03-10 2024-08-01 Danfoss Power Solutions Aps Hydraulic steering unit
DE102020106438B4 (en) 2020-03-10 2022-03-31 Danfoss Power Solutions Aps Fluid control device, in particular as part of a hydraulic steering unit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370207A (en) * 1964-02-24 1968-02-20 Gen Electric Multilayer contact system for semiconductor devices including gold and copper layers
DE2048421C3 (en) * 1970-10-02 1979-08-09 Danfoss A/S, Nordborg (Daenemark) Valve arrangement for hydraulic steering devices
US3924705A (en) * 1971-12-08 1975-12-09 Aisin Seiki Power steering mechanism
DE3044144A1 (en) * 1980-11-24 1982-09-09 Linde Ag, 6200 Wiesbaden HYDROSTATIC DRIVE SYSTEM WITH ONE ADJUSTABLE PUMP AND SEVERAL CONSUMERS
JPS60147574U (en) * 1984-03-13 1985-10-01 自動車機器株式会社 Power steering device
AU568946B2 (en) * 1984-08-08 1988-01-14 Bishop Steering Technology Limited Power steering control valve
EP0247060B1 (en) * 1985-04-06 1988-11-17 ZF FRIEDRICHSHAFEN Aktiengesellschaft Rotary sliding valve for hydraulic power-assisted steering systems
WO1988001959A1 (en) * 1986-09-19 1988-03-24 Zahnradfabrik Friedrichshafen Ag Rotary gate valve for hydraulic servo-assisted steering systems
US4768604A (en) * 1987-07-06 1988-09-06 General Motors Corporation Power steering system
US4924910A (en) * 1988-04-12 1990-05-15 Koyo Seiko Co., Ltd. Hydraulic pressure control valve

Also Published As

Publication number Publication date
WO1993017245A1 (en) 1993-09-02
AU3617193A (en) 1993-09-13
US5505119A (en) 1996-04-09

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