ES2111252T3 - Amplificador neumatico de fuerza de frenado. - Google Patents

Amplificador neumatico de fuerza de frenado.

Info

Publication number
ES2111252T3
ES2111252T3 ES94306676T ES94306676T ES2111252T3 ES 2111252 T3 ES2111252 T3 ES 2111252T3 ES 94306676 T ES94306676 T ES 94306676T ES 94306676 T ES94306676 T ES 94306676T ES 2111252 T3 ES2111252 T3 ES 2111252T3
Authority
ES
Spain
Prior art keywords
compressed air
air inlet
valve body
pressure
perforation
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
ES94306676T
Other languages
English (en)
Inventor
Yasuhiko Amari
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.)
Hitachi Ltd
Original Assignee
Tokico Ltd
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 Tokico Ltd filed Critical Tokico Ltd
Application granted granted Critical
Publication of ES2111252T3 publication Critical patent/ES2111252T3/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
    • 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)
  • Safety Valves (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

UN EMBOLO (21) MOVIL EN RESPUESTA A UN EJE DE IMPULSO (9) ESTA LATERALMENTE AJUSTADO A UN CUERPO DE VALVULA HUECO (7) QUE TIENE ENTRADA DE PRESION NEGATIVA (17) Y UNA ABERTURA PARA ENTRADA DE AIRE COMPRIMIDO (19) A TRAVES DE UN PAR DE ELEMENTOS LACRADOS. DOS VALVULAS (27, 28) ESTAN ASOCIADAS AL EMBOLO PARA INTRODUCIR SUCESIVAMENTE EL AIRE Y EL AIRE COMPRIMIDO EN LA CAMARA DE PRESION (14) DE UN AMPLIFICADOR NEUMATICO PARA PRODUCIR EL IMPULSO EMPUJADO. LA PERFORACION (9A) DEL CUERPO DE VALVULA TIENE UN DIAMETRO UNIFORME, TENIENDO LA SUPERFICIE INTERIOR DE LA PERFORACION UNA RANURA ANULAR (45) QUE INCLUYE LA ABERTURA DE ENTRADA DEL AIRE COMPRIMIDO (19). CUANDO EL EMBOLO (21) SE INSERTA EN EL CUERPO DE VALVULA (7), EL ELEMENTO DE SELLADO FRONTAL DEJA DE ENTRAR EN CONTACTO CON LA ABERTURA DE ENTRADA DE AIRE A PRESION (19) POR PRESENCIA DE LA RANURA ANULAR (45). NO EXISTE DIFERENCIA DE PRESION ENTRE LAS DOS PARTES DEL EMBOLO (21) QUE ESTAN DELANTE Y DETRAS DE LA ENTRADA DE AIRE COMPRIMIDO (19) CUANDO SE INTRODUCE AIRE COMPRIMIDO.
ES94306676T 1993-09-20 1994-09-12 Amplificador neumatico de fuerza de frenado. Expired - Lifetime ES2111252T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25782493A JP3491056B2 (ja) 1993-09-20 1993-09-20 気圧式倍力装置

Publications (1)

Publication Number Publication Date
ES2111252T3 true ES2111252T3 (es) 1998-03-01

Family

ID=17311640

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94306676T Expired - Lifetime ES2111252T3 (es) 1993-09-20 1994-09-12 Amplificador neumatico de fuerza de frenado.

Country Status (4)

Country Link
EP (1) EP0644094B1 (es)
JP (1) JP3491056B2 (es)
DE (1) DE69407010T2 (es)
ES (1) ES2111252T3 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2744085B1 (fr) * 1996-01-30 1998-08-14 Alliedsignal Europ Services Servomoteur pneumatique d'assistance au freinage a clapet perfectionne

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28191E (en) * 1970-05-25 1974-10-08 Superatmqspheric fluid pressure servomotor
JPS5719332Y2 (es) * 1976-12-29 1982-04-22
GB8608965D0 (en) * 1986-04-12 1986-05-14 Lucas Ind Plc Compressed air-operated servo-booster
JPS63258258A (ja) * 1987-04-15 1988-10-25 Tokico Ltd 気圧式倍力装置
JPH061894Y2 (ja) * 1989-11-02 1994-01-19 トキコ株式会社 気圧式倍力装置
JPH03271051A (ja) * 1990-03-19 1991-12-03 Tokico Ltd 気圧式倍力装置
FR2666552B1 (fr) * 1990-09-07 1995-06-16 Bendix Europ Services Tech Procede de reglage de la valeur du saut d'un servomoteur pneumatique d'assistance au freinage et servomoteur pour la mise en óoeuvre de ce procede.
FR2673410B1 (fr) * 1991-02-28 1993-04-30 Bendix Europ Services Tech Servomoteur d'assistance au freinage a saut reglable et procede de reglage du saut.
FR2676414A1 (fr) * 1991-05-14 1992-11-20 Bendix Europ Services Tech Servomoteur pneumatique.
FR2676413A1 (fr) * 1991-05-14 1992-11-20 Bendix Europ Services Tech Servomoteur pneumatique.

Also Published As

Publication number Publication date
DE69407010T2 (de) 1998-03-19
EP0644094B1 (en) 1997-11-26
JPH0789430A (ja) 1995-04-04
DE69407010D1 (de) 1998-01-08
EP0644094A1 (en) 1995-03-22
JP3491056B2 (ja) 2004-01-26

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