ES2173336T3 - Servomotor neumatico de asistencia al frenado, con valvula mejorada. - Google Patents

Servomotor neumatico de asistencia al frenado, con valvula mejorada.

Info

Publication number
ES2173336T3
ES2173336T3 ES96941693T ES96941693T ES2173336T3 ES 2173336 T3 ES2173336 T3 ES 2173336T3 ES 96941693 T ES96941693 T ES 96941693T ES 96941693 T ES96941693 T ES 96941693T ES 2173336 T3 ES2173336 T3 ES 2173336T3
Authority
ES
Spain
Prior art keywords
valve
annular
annular face
way
pneumatic brake
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
ES96941693T
Other languages
English (en)
Inventor
Roland Levrai
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.)
Bosch Systemes de Freinage SAS
Original Assignee
Bosch Systemes de Freinage SAS
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 Bosch Systemes de Freinage SAS filed Critical Bosch Systemes de Freinage SAS
Application granted granted Critical
Publication of ES2173336T3 publication Critical patent/ES2173336T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

LA INVENCION SE REFIERE A UN SERVOMOTOR NEUMATICO DE ASISTENCIA AL FRENADO QUE POSEE UNA CUBIERTA (10) CON UN EJE DE SIMETRIA (X - X ) DIVIDIDA DE FORMA ESTANCA POR AL MENOS UNA ESTRUCTURA DE TABIQUE MOVIL (12) EN AL MENOS UNA CAMARA DELANTERA (14) CONECTADA DE FORMA PERMANENTE A UNA FUENTE DE BAJA PRESION Y AL MENOS UNA CAMARA TRASERA (16) CONECTADA SELECTIVAMENTE A LA CAMARA DELANTERA (14) O A UNA FUENTE DE ALTA PRESION POR MEDIO DE UNA VALVULA DE TRES VIAS ACCIONADA POR UNA VARILLA DE MANDO (30, 130). LA VALVULA DE TRES VIAS VA EQUIPADA CON UN ELEMENTO DE VALVULA (36, 136) QUE COOPERA POR UNA CARA ANULAR (40, 140) CON UN PRIMER ASIENTO ANULAR DE VALVULA (34, 134) FORMADO SOBRE UN EMBOLO (28, 128) QUE SE DESLIZA POR UN MANDRINADO (26, 126) DE UN PISTON (20, 90). LA CARA ANULAR DEL ELEMENTO DE VALVULA ES PRESIONADA HACIA EL ASIENTO ANULAR DE VALVULA (34, 134) POR UN RESORTE DE VALVULA (42, 142). SEGUN LA INVENCION, LA VALVULA DE TRES VIAS CONSTA DE UN SEGUNDO ELEMENTO DE VALVULA (46, 146)QUE COOPERA POR UNA CARA ANULAR (50, 150) CON UN SEGUNDO ASIENTO ANULAR DE VALVULA (44, 144) FORMADO SOBRE EL EMBOLO (28, 128); LA CARA ANULAR (50, 150) DE ESTE SEGUNDO ELEMENTO DE VALVULA (46, 146) ES PRESIONADA HACIA ATRAS EN DIRECCION AL SEGUNDO ASIENTO DE VALVULA (44, 144) POR UN SEGUNDO RESORTE DE VALVULA (52, 152).
ES96941693T 1996-01-30 1996-12-04 Servomotor neumatico de asistencia al frenado, con valvula mejorada. Expired - Lifetime ES2173336T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9601042A FR2744084B1 (fr) 1996-01-30 1996-01-30 Servomoteur pneumatique d'assistance au freinage a clapet perfectionne

Publications (1)

Publication Number Publication Date
ES2173336T3 true ES2173336T3 (es) 2002-10-16

Family

ID=9488596

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96941693T Expired - Lifetime ES2173336T3 (es) 1996-01-30 1996-12-04 Servomotor neumatico de asistencia al frenado, con valvula mejorada.

Country Status (6)

Country Link
US (1) US5848827A (es)
EP (1) EP0877691B1 (es)
DE (1) DE69620247T2 (es)
ES (1) ES2173336T3 (es)
FR (1) FR2744084B1 (es)
WO (1) WO1997028034A1 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1167148B1 (en) * 2000-07-01 2008-02-06 Robert Bosch GmbH A method and apparatus for calculating actuation control of an FDR/ESP hydro-subassembly for reduction of hydraulic noises
DE10034635B4 (de) * 2000-07-17 2005-06-30 Lucas Varity Gmbh Unterdruck-Bremskraftverstärker mit verbessertem Luftfilterelement
US8746127B2 (en) * 2010-11-08 2014-06-10 Robert Bosch Gmbh Valve return spring with filter support for a pneumatic brake booster assembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667471A (en) * 1984-08-20 1987-05-26 Allied Corporation Brake booster for vehicular hill holder system
DE3641105A1 (de) * 1986-12-02 1988-06-16 Teves Gmbh Alfred Kraftfahrzeugbremsvorrichtung
IT1241193B (it) * 1990-03-15 1993-12-29 Bendix Italia S.P.A. Servomotore di assistenza alla frenatura
FR2675448A1 (fr) * 1991-04-17 1992-10-23 Bendix Europ Services Tech Servomoteur pneumatique.
DE4227286C2 (de) * 1992-08-18 1996-08-29 Lucas Ind Plc Pneumatischer Bremskraftverstärker, insbesondere für Kraftfahrzeuge
FR2698333B1 (fr) * 1992-11-26 1995-02-03 Alliedsignal Europ Services Servomoteur pneumatique.
DE4317490A1 (de) * 1993-05-26 1994-12-01 Teves Gmbh Alfred Unterdruck-Bremskraftverstärker
DE4405076C2 (de) * 1994-02-17 1997-01-02 Lucas Ind Plc Pneumatischer Bremskraftverstärker mit elektromagnetischer Hilfssteuerung, insbesondere für Kraftfahrzeug-Bremsanlagen

Also Published As

Publication number Publication date
DE69620247D1 (de) 2002-05-02
EP0877691B1 (fr) 2002-03-27
FR2744084A1 (fr) 1997-08-01
EP0877691A1 (fr) 1998-11-18
WO1997028034A1 (fr) 1997-08-07
FR2744084B1 (fr) 1998-08-14
DE69620247T2 (de) 2002-11-28
US5848827A (en) 1998-12-15

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