ES2178233T3 - Servomotor neumatico de asistencia a la frenada, con valvula perfeccionada. - Google Patents

Servomotor neumatico de asistencia a la frenada, con valvula perfeccionada.

Info

Publication number
ES2178233T3
ES2178233T3 ES98933699T ES98933699T ES2178233T3 ES 2178233 T3 ES2178233 T3 ES 2178233T3 ES 98933699 T ES98933699 T ES 98933699T ES 98933699 T ES98933699 T ES 98933699T ES 2178233 T3 ES2178233 T3 ES 2178233T3
Authority
ES
Spain
Prior art keywords
piston
pneumatic
valve
pneumatic piston
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
ES98933699T
Other languages
English (en)
Inventor
Bacardit Juan Simon
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 Sistemas de Frenado SL
Original Assignee
Bosch Sistemas de Frenado SL
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 Sistemas de Frenado SL filed Critical Bosch Sistemas de Frenado SL
Application granted granted Critical
Publication of ES2178233T3 publication Critical patent/ES2178233T3/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
    • 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
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/72—Electrical control in fluid-pressure brake systems in vacuum systems or vacuum booster units

Landscapes

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

Abstract

La invención se refiere a un sobrealimentador neumático de asistencia al freno, que comprende una carcasa (10), separada de forma sellada por al menos una estructura de pared móvil (12) en una cámara frontal (14) y una cámara posterior (16) conectada selectivamente a la cámara frontal (14) o a una fuente de alta presión por una válvula de tres vías (36) actuada por un vástago de control (30) integral con un embolo (28), sometido a la acción de un muelle de retorno (38) y capaz de deslizarse en un orificio (26) formado en un pistón neumático (20), integral con la pared móvil (12), comprendiendo la válvula de tres vías (36) un componente de la válvula (36) que coopera con un primer asiento de la válvula (28a) formado en el émbolo (28) y con un segundo asiento de la válvula (20a) formado en el pistón neumático (20), estando la posición inoperativa posterior del pistón delimitada por un tope de límite (32) formado en el extremo frontal de un manguito (34) dispuesto en la parte tubular posterior (22) del pistón neumático (20). La invención se caracteriza porque el émbolo (28) comprende una parte posterior cilíndrica que se puede deslizar sobre el extremo frontal del manguito (34), y el muelle de retorno (38) del vástago de control (30) está dispuesto entre el pistón neumático (20) y el émbolo (28).
ES98933699T 1997-06-27 1998-06-24 Servomotor neumatico de asistencia a la frenada, con valvula perfeccionada. Expired - Lifetime ES2178233T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9708120A FR2765174B1 (fr) 1997-06-27 1997-06-27 Servomoteur pneumatique d'assistance au freinage a clapet perfectionne

Publications (1)

Publication Number Publication Date
ES2178233T3 true ES2178233T3 (es) 2002-12-16

Family

ID=9508559

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98933699T Expired - Lifetime ES2178233T3 (es) 1997-06-27 1998-06-24 Servomotor neumatico de asistencia a la frenada, con valvula perfeccionada.

Country Status (7)

Country Link
US (1) US6044749A (es)
EP (1) EP0991556B1 (es)
JP (1) JP4207169B2 (es)
DE (1) DE69806601T2 (es)
ES (1) ES2178233T3 (es)
FR (1) FR2765174B1 (es)
WO (1) WO1999000284A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100920467B1 (ko) 2006-12-08 2009-10-14 한국델파이주식회사 자동차용 패닉 부스터
US8640599B2 (en) * 2010-06-15 2014-02-04 Robert Bosch Gmbh Brake booster having atmosphere chamber void of springs

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5897550A (ja) * 1981-12-07 1983-06-10 Nippon Air Brake Co Ltd 圧縮空気圧式倍力装置
JPS6078849A (ja) * 1983-10-05 1985-05-04 Nissan Motor Co Ltd ブレ−キ倍力装置
DE3406520A1 (de) * 1984-02-23 1985-08-29 Alfred Teves Gmbh, 6000 Frankfurt Vakuumbetriebener bremskraftverstaerker
GB8602947D0 (en) * 1986-02-06 1986-03-12 Lucas Ind Plc Servo-booster
US4905571A (en) * 1988-08-31 1990-03-06 General Motors Corporation Air booster with pressure-balanced valve
DE4141353C2 (de) * 1991-12-14 2000-08-03 Continental Teves Ag & Co Ohg Betätigungseinheit für eine hydraulische Kraftfahrzeugbremsanlage
DE4337361A1 (de) * 1993-11-02 1995-05-04 Lucas Ind Plc Pneumatischer Bremskraftverstärker

Also Published As

Publication number Publication date
EP0991556B1 (fr) 2002-07-17
DE69806601T2 (de) 2003-01-02
FR2765174A1 (fr) 1998-12-31
JP4207169B2 (ja) 2009-01-14
FR2765174B1 (fr) 1999-08-27
US6044749A (en) 2000-04-04
EP0991556A1 (fr) 2000-04-12
JP2002507167A (ja) 2002-03-05
WO1999000284A1 (fr) 1999-01-07
DE69806601D1 (de) 2002-08-22

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