ES2179131T3 - Valvula de control para direccion con dimensiones de apertura que varian relativamente para una eliminacion del ruido. - Google Patents

Valvula de control para direccion con dimensiones de apertura que varian relativamente para una eliminacion del ruido.

Info

Publication number
ES2179131T3
ES2179131T3 ES96103989T ES96103989T ES2179131T3 ES 2179131 T3 ES2179131 T3 ES 2179131T3 ES 96103989 T ES96103989 T ES 96103989T ES 96103989 T ES96103989 T ES 96103989T ES 2179131 T3 ES2179131 T3 ES 2179131T3
Authority
ES
Spain
Prior art keywords
current
area
valve
section
vacuum
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 - Lifetime
Application number
ES96103989T
Other languages
English (en)
Inventor
Wendell L Gilbert
Lisa R Menyhart
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
Application granted granted Critical
Publication of ES2179131T3 publication Critical patent/ES2179131T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B62D5/08—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
    • B62D5/0837—Rotary valves characterised by the shape of the control edges, e.g. to reduce noise
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86654—For plural lines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86662—Axial and radial flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Details Of Valves (AREA)

Abstract

UNA VALVULA (10) PARA CONTROLAR LA CORRIENTE DE FLUIDO HIDRAULICO. LA VALVULA (10) INCLUYE MIEMBROS DE PRIMERA Y SEGUNDA VALVULA (80;82), CADA UNA CON UNA MULTIPLICIDAD DE SUPERFICIES Y SURCOS. LOS MIEMBROS DE LA VALVULA (80,82) SON RELATIVAMENTE MOVILES DE UNA POSICION NEUTRAL A UNA POSICION DESPLAZADA EN LA QUE LOS SEGMENTOS SUPERFICIALES (202, 226,208,218) DE LOS PARES RESPECTIVOS DE SUPERFICIES SE SUPERPONEN PARA FORMAR VACIOS DE CORRIENTE (232,234) PARA RESTRINGIR LA CORRIENTE DE FLUIDOS ENTRE LOS PARES DE SURCOS RESPECTIVOS. AL MENOS UNO (234) DE LOS VACIOS DE CORRIENTE ES DIVERGENTE POR MEDIO DE UN CORTE DE SECCION DEL AREA DE CORRIENTE, QUE AUMENTA A LO LARGO DE LA DIRECCION DE LA CORRIENTE DE FLUIDOS QUE PASA POR EL Y AL MENOS UNO (232) DE LOS VACIOS DE CORRIENTE ES CONVERGENTE POR MEDIO DE UN CORTE DE SECCION DEL AREA DE CORRIENTE QUE DISMINUYE A LO LARGO DE UNA DIRECCION DE CORRIENTE DE FLUIDO QUE LO ATRAVIESA. LOS VACIOS DE CORRIENTE (232,234) TIENEN AREAS DE CORRIENTE EN CORTEDE SECCION MINIMAS (A,B) DEFINIDAS POR LOS SEGMENTOS SUPERFICIALES. LOS VACIOS DE CORRIENTE (232,234) TIENEN UN TAMAÑO TAL QUE EL AREA MINIMA DEL CORTE DE SECCION (A) DEL VACIO DE CORRIENTE CONVERGENTE (232) ES MAYOR QUE EL AREA DE CORTE DE SECCION MINIMA (B) DEL VACIO DE CORRIENTE DIVERGENTE (234) EN UNA PRIMERA POSICION GIRATORIA, Y UN TAMAÑO TAL QUE EL AREA DE CORTE DE SECCION (A) DEL VACIO DE CORRIENTE CONVERGENTE (232) ES MENOR QUE EL AREA DE CORTE DE SECCION MINIMO (B) DEL VACIO DE CORRIENTE DIVERGENTE (234) EN UNA SEGUNDA POSICION GIRATORIA PARA SUPRIMIR EL RUIDO DE LA VALVULA.
ES96103989T 1995-03-14 1996-03-13 Valvula de control para direccion con dimensiones de apertura que varian relativamente para una eliminacion del ruido. Expired - Lifetime ES2179131T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/403,488 US5582207A (en) 1995-03-14 1995-03-14 Steering control valve with flow gaps which change relative size for noise suppression

Publications (1)

Publication Number Publication Date
ES2179131T3 true ES2179131T3 (es) 2003-01-16

Family

ID=23595965

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96103989T Expired - Lifetime ES2179131T3 (es) 1995-03-14 1996-03-13 Valvula de control para direccion con dimensiones de apertura que varian relativamente para una eliminacion del ruido.

Country Status (5)

Country Link
US (1) US5582207A (es)
EP (1) EP0732254B1 (es)
BR (1) BR9601016A (es)
DE (1) DE69621860T2 (es)
ES (1) ES2179131T3 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5799693A (en) * 1996-12-09 1998-09-01 Trw Inc. Power steering control valve with noise reduction
US5794507A (en) * 1996-12-09 1998-08-18 Trw Inc. Power steering control valve with back pressure
US5975137A (en) * 1996-12-09 1999-11-02 Trw Inc. Power steering control valve
US5934405A (en) * 1997-11-17 1999-08-10 Trw Inc. Power steering control valve
US6082403A (en) * 1998-04-09 2000-07-04 Trw Inc. Power steering control valve with back pressure
US6052900A (en) * 1998-06-22 2000-04-25 Trw Inc. Method of assembling a power steering control valve
US6234758B1 (en) 1999-12-01 2001-05-22 Caterpillar Inc. Hydraulic noise reduction assembly with variable side branch
ES2277100T3 (es) * 2002-05-03 2007-07-01 Trw Automotive U.S. Llc Valvula de control de direccion asistida.
US7152627B2 (en) * 2004-04-05 2006-12-26 R. H. Sheppard Co., Inc. Control valve for a hydraulic power steering system
US7210553B2 (en) * 2005-03-10 2007-05-01 Trw Automotive U.S. Llc Steering apparatus
US7389849B2 (en) * 2005-03-21 2008-06-24 Trw Automotive U.S. Llc Steering apparatus with plural motors
US20090314572A1 (en) * 2008-06-19 2009-12-24 Trw Automotive U.S. Llc Closed center valve steering system with adjustable pressure
US9415802B2 (en) 2013-08-15 2016-08-16 Steering Solutions Ip Holding Corporation Universal cartridge torque overlay assembly
US11353135B1 (en) * 2019-03-02 2022-06-07 Facebook Technologies, Llc Magnetic fluidic valves and related systems and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5958278A (ja) * 1982-09-28 1984-04-03 Toyoda Mach Works Ltd ロ−タリバルブ
JP2719861B2 (ja) * 1991-12-13 1998-02-25 自動車機器株式会社 流体制御弁装置
US5259413A (en) * 1992-08-27 1993-11-09 Trw Inc. Steering control valve with contoured control surfaces
US5207244A (en) * 1992-09-21 1993-05-04 Trw Inc. Steering control valve with contoured control surfaces
US5417244A (en) * 1994-02-07 1995-05-23 Trw Inc. Valve with noise reducing two stage pressure drop

Also Published As

Publication number Publication date
EP0732254A2 (en) 1996-09-18
BR9601016A (pt) 1997-12-30
EP0732254A3 (en) 1997-11-19
EP0732254B1 (en) 2002-06-19
US5582207A (en) 1996-12-10
DE69621860T2 (de) 2003-02-13
DE69621860D1 (de) 2002-07-25

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