FR2391885A1 - - Google Patents

Info

Publication number
FR2391885A1
FR2391885A1 FR7815868A FR7815868A FR2391885A1 FR 2391885 A1 FR2391885 A1 FR 2391885A1 FR 7815868 A FR7815868 A FR 7815868A FR 7815868 A FR7815868 A FR 7815868A FR 2391885 A1 FR2391885 A1 FR 2391885A1
Authority
FR
France
Prior art keywords
spring
switch
amplifier
control valve
displacement
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.)
Granted
Application number
FR7815868A
Other languages
English (en)
Other versions
FR2391885B1 (fr
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2391885A1 publication Critical patent/FR2391885A1/fr
Application granted granted Critical
Publication of FR2391885B1 publication Critical patent/FR2391885B1/fr
Expired 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
    • B60T13/12—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 liquid
    • B60T13/14—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 liquid using accumulators or reservoirs fed by pumps
    • B60T13/142—Systems with master cylinder
    • B60T13/143—Master cylinder mechanically coupled with booster
    • B60T13/144—Pilot valve provided inside booster piston
    • 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
    • B60T13/12—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 liquid
    • B60T13/14—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 liquid using accumulators or reservoirs fed by pumps
    • B60T13/148—Arrangements for pressure supply
    • 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
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Hydraulic Control Valves For Brake Systems (AREA)

Abstract

Un tel amplificateur est actionné par la pédale de frein par l'intermédiaire d'un ressort à déplacement et est équipé d'une valve de commande. Selon l'invention, le ressort à déplacement 32 est disposé décentré par rapport à la valve de commande 9 à l'extérieur de l'amplificateur 1. Cette disposition fait gagner de la place d'une part et permet d'autre par la mise hors circuit du ressort à déplacement par des moyens simples si la force auxiliaire (accumulateur hydropneumatique 8) vient à disparaître. La mise hors circuit du ressort 32 est produite par un dispositif de mise hors circuit et d'une transmission hydraulique 27, 28, 29 et 30. Le dispositif de mise hors circuit comprend un piston 34 qui est chargé d'un côté par un ressort 35 et exposé de l'autre côté à la pression de l'accumulateur 8 et qui supprime l'action du ressort 32 au moyen d'une tige de piston 38.
FR7815868A 1977-05-26 1978-05-26 Expired FR2391885B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772723734 DE2723734A1 (de) 1977-05-26 1977-05-26 Bremskraftverstaerker

Publications (2)

Publication Number Publication Date
FR2391885A1 true FR2391885A1 (fr) 1978-12-22
FR2391885B1 FR2391885B1 (fr) 1983-03-18

Family

ID=6009897

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7815868A Expired FR2391885B1 (fr) 1977-05-26 1978-05-26

Country Status (4)

Country Link
US (1) US4318272A (fr)
DE (1) DE2723734A1 (fr)
FR (1) FR2391885B1 (fr)
GB (1) GB1599862A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036271A1 (fr) * 1980-03-17 1981-09-23 LUCAS INDUSTRIES public limited company Assemblages de maître-cylindre
FR2566062A1 (fr) * 1984-06-14 1985-12-20 Teves Gmbh Alfred Appareil d'amplification de force notamment pour la commande d'un embrayage
EP0209817A1 (fr) * 1985-07-23 1987-01-28 Robert Bosch Gmbh Amplificateur et modulateur de pression
EP0210421A1 (fr) * 1985-07-23 1987-02-04 Robert Bosch Gmbh Amplificateur de force de freinage pour installations de freinage de véhicules

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329706A1 (de) * 1983-08-17 1985-03-07 Robert Bosch Gmbh, 7000 Stuttgart Bremsanlage fuer kraftfahrzeuge
DE3445566C2 (de) * 1984-12-14 1997-05-22 Teves Gmbh Alfred Bremskraftverstärker für eine hydraulische Fahrzeugbremsanlage
GB2171769B (en) * 1985-03-02 1989-05-10 Teves Gmbh Alfred Hydraulic brake system
JPS6237261A (ja) * 1985-08-13 1987-02-18 Jidosha Kiki Co Ltd 倍力装置の入力検出装置
KR101327945B1 (ko) * 2009-12-01 2013-11-13 주식회사 만도 하이브리드 제동장치

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2320561A1 (de) * 1973-04-21 1974-11-14 Bosch Gmbh Robert Bremsventil fuer druckmittelbremsanlagen von kraftfahrzeugen
DE2519836A1 (de) * 1975-05-03 1976-11-11 Teves Gmbh Alfred Bremsgeraet mit hauptzylinder und hilfskraftverstaerkung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3222868A (en) * 1963-02-08 1965-12-14 Kelsey Hayes Co Brake operating mechanism
AT286803B (de) * 1968-06-11 1970-12-28 Hermann E Mueller Metallwarenf Zweikreisbremsanlage, insbesondere für Kraftfahrzeuge
JPS5419508Y2 (fr) * 1974-10-30 1979-07-18
DE2531264C2 (de) * 1975-07-12 1986-10-02 Robert Bosch Gmbh, 7000 Stuttgart Hauptbremszylinder für Zweikreisbremsanlagen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2320561A1 (de) * 1973-04-21 1974-11-14 Bosch Gmbh Robert Bremsventil fuer druckmittelbremsanlagen von kraftfahrzeugen
DE2519836A1 (de) * 1975-05-03 1976-11-11 Teves Gmbh Alfred Bremsgeraet mit hauptzylinder und hilfskraftverstaerkung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036271A1 (fr) * 1980-03-17 1981-09-23 LUCAS INDUSTRIES public limited company Assemblages de maître-cylindre
FR2566062A1 (fr) * 1984-06-14 1985-12-20 Teves Gmbh Alfred Appareil d'amplification de force notamment pour la commande d'un embrayage
EP0209817A1 (fr) * 1985-07-23 1987-01-28 Robert Bosch Gmbh Amplificateur et modulateur de pression
EP0210421A1 (fr) * 1985-07-23 1987-02-04 Robert Bosch Gmbh Amplificateur de force de freinage pour installations de freinage de véhicules

Also Published As

Publication number Publication date
DE2723734A1 (de) 1978-12-07
US4318272A (en) 1982-03-09
FR2391885B1 (fr) 1983-03-18
GB1599862A (en) 1981-10-07

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Legal Events

Date Code Title Description
ST Notification of lapse