FR2421773A1 - Perfectionnements aux servosurpresseurs - Google Patents

Perfectionnements aux servosurpresseurs

Info

Publication number
FR2421773A1
FR2421773A1 FR7908780A FR7908780A FR2421773A1 FR 2421773 A1 FR2421773 A1 FR 2421773A1 FR 7908780 A FR7908780 A FR 7908780A FR 7908780 A FR7908780 A FR 7908780A FR 2421773 A1 FR2421773 A1 FR 2421773A1
Authority
FR
France
Prior art keywords
lever
movable
booster
movable wall
application
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
FR7908780A
Other languages
English (en)
Other versions
FR2421773B1 (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.)
Girling Ltd
Original Assignee
Girling 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
Priority claimed from GB13873/78A external-priority patent/GB1592231A/en
Application filed by Girling Ltd filed Critical Girling Ltd
Publication of FR2421773A1 publication Critical patent/FR2421773A1/fr
Application granted granted Critical
Publication of FR2421773B1 publication Critical patent/FR2421773B1/fr
Granted 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

Abstract

Invention concernant le freinage des véhicules. Servosurpresseur dans lequel un organe de sortie est déplaçable axialement par l'application d'une différence de pression de fluide sous la commande d'une soupape actionnable par un organe d'entrée au travers d'une paroi interne mobile qui partage le carter du surpresseur en deux chambres à fluide, le déplacement de la paroi mobile étant communiqué à l'organe de sortie par l'intermédiaire d'un mécanisme à leviers, mécaniquement avantageux, entre ladite paroi mobile et l'organe de sortie, ledit mécanisme à leviers comprenant au moins un premier levier et au moins un second levier, le second levier pouvant pivoter par rapport aux organes d'entrée et de sortie en des points de pivotement respectifs et le premier levier pivotant par rapport au second levier, la paroi mobile agissant sur une extrémité dudit premier levier et son autre extrémité coopérant avec le carter. Application aux systèmes de freins hydrauliques de voitures.
FR7908780A 1978-05-31 1979-04-06 Perfectionnements aux servosurpresseurs Granted FR2421773A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13873/78A GB1592231A (en) 1976-12-15 1978-05-31 Servo boosters

Publications (2)

Publication Number Publication Date
FR2421773A1 true FR2421773A1 (fr) 1979-11-02
FR2421773B1 FR2421773B1 (fr) 1983-12-09

Family

ID=10030945

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7908780A Granted FR2421773A1 (fr) 1978-05-31 1979-04-06 Perfectionnements aux servosurpresseurs

Country Status (5)

Country Link
US (1) US4283992A (fr)
JP (1) JPS54141959A (fr)
DE (1) DE2913951A1 (fr)
FR (1) FR2421773A1 (fr)
IT (1) IT1116558B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532084A1 (fr) * 1982-08-20 1984-02-24 Dba Cle d'arret pour plongeur de valve de servomoteur d'assistance et servomoteur d'assistance equipe d'une telle cle
EP0159148A1 (fr) * 1984-03-19 1985-10-23 Tokico Ltd. Amplificateur pneumatique

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112343A1 (de) * 1981-03-28 1982-10-14 Alfred Teves Gmbh, 6000 Frankfurt Bremskraftverstaerker fuer kraftfahrzeuge
US4704867A (en) * 1985-12-09 1987-11-10 Allied Corporation Hydraulic brake booster with cam and lever ratio changer
US4787292A (en) * 1986-09-29 1988-11-29 Jidosha Kiki Co., Ltd. Brake booster
US6829976B2 (en) * 2002-11-15 2004-12-14 Robert Bosch Corporation Diaphragm for a brake booster
US6874405B2 (en) * 2003-01-14 2005-04-05 Haldex Brake Corporation Breather filter for sealed spring brake actuators
US7484620B2 (en) 2005-11-14 2009-02-03 Black & Decker Inc. Accessory storage case
US20080000733A1 (en) * 2006-06-14 2008-01-03 Ehrlich Rodney P Spring brake internal venting

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234486A1 (en) * 1973-06-19 1975-01-17 Knorr Bremse Gmbh Brake cylinder for motor vehicles - provides two different brake forces using mechanical and hydraulic transmission systems
FR2332461A1 (fr) * 1975-11-18 1977-06-17 Knorr Bremse Gmbh Cylindre a accumulateur a ressort
FR2395223A1 (fr) * 1977-06-23 1979-01-19 Shirokov Vasily Procede de production de l'hydrogene et installation pour sa mise en oeuvre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2134227A (en) * 1935-05-24 1938-10-25 Ippelsheim Lotte Forkardt Geb Operating mechanism for chucks
US2395223A (en) * 1944-01-13 1946-02-19 Automatic Shifters Inc Vehicle brake mechanism
US4086842A (en) * 1976-10-28 1978-05-02 The Bendix Corporation Internal force multiplier for a servomotor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2234486A1 (en) * 1973-06-19 1975-01-17 Knorr Bremse Gmbh Brake cylinder for motor vehicles - provides two different brake forces using mechanical and hydraulic transmission systems
FR2332461A1 (fr) * 1975-11-18 1977-06-17 Knorr Bremse Gmbh Cylindre a accumulateur a ressort
FR2395223A1 (fr) * 1977-06-23 1979-01-19 Shirokov Vasily Procede de production de l'hydrogene et installation pour sa mise en oeuvre

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2532084A1 (fr) * 1982-08-20 1984-02-24 Dba Cle d'arret pour plongeur de valve de servomoteur d'assistance et servomoteur d'assistance equipe d'une telle cle
EP0101658A1 (fr) * 1982-08-20 1984-02-29 BENDIX France Clé d'arrêt pour plongeur de valve de servomoteur d'assistance et servomoteur d'assistance équipé d'une telle clé
US4491058A (en) * 1982-08-20 1985-01-01 Societe Anonyme Dba Stop key for the valve plunger of a power brake servomotor
EP0159148A1 (fr) * 1984-03-19 1985-10-23 Tokico Ltd. Amplificateur pneumatique
US4671167A (en) * 1984-03-19 1987-06-09 Tokico Ltd. Pneumatic booster
US4813336A (en) * 1984-03-19 1989-03-21 Tokico Ltd. Pneumatic booster

Also Published As

Publication number Publication date
IT1116558B (it) 1986-02-10
JPS54141959A (en) 1979-11-05
DE2913951A1 (de) 1979-10-11
FR2421773B1 (fr) 1983-12-09
US4283992A (en) 1981-08-18
IT7948652A0 (it) 1979-04-06

Similar Documents

Publication Publication Date Title
FR2421773A1 (fr) Perfectionnements aux servosurpresseurs
FR2372366A1 (fr) Servo-valve pour un appareillage hydraulique asservi, utilise pour le traitement de l'hydrocephalie
FR2363015A1 (fr) Soupape de regulation
FR2507144A1 (fr) Direction assistee, notamment pour vehicules utilitaires
ITMI971016A1 (it) Gruppo idraulico di azionamento di freni/frizioni o simili interno al manubrio di motociclo o simile
GB1589120A (en) Vacuum type servomotor
FR2356069A1 (fr) Soupape de retenue, en particulier pour dispositifs actionnes par depression dans des vehicules automobiles
FR2375511A1 (fr) Circuit de transmission de fluide
EP0173625A1 (fr) Dispositif d'actionnement par commande de la pression d'un fluide avec compensation d'usure et correction de caractéristiques notamment pour mécanismes d'embrayages à friction
FR2379717A1 (fr) Valve de commande pour amplificateur hydraulique de freinage
FR2440295A1 (fr) Ensemble de servo-amplificateur de commande
FR2595637A1 (fr) Dispositif d'actionnement d'un embrayage a commande hydraulique
FR2366156A1 (fr) Dispositif d'assistance hydraulique
US4651842A (en) Power assisted steering system with central output
US2672015A (en) Hydraulic brake booster
JP3404753B2 (ja) 組込み型マスタシリンダ付きブレーキブースタ
FR2364302A1 (fr) Vehicule de travail du type bulldozer a pelle arriere muni d'un circuit hydraulique a fluide de pression
US3359729A (en) Pressure limiting devices for hydraulic brakes
US3188920A (en) Brake servomotor means
EP0072331B1 (fr) Correcteur de freinage
US2796737A (en) Hydraulic remote control system
FR2362032A1 (fr) Perfectionnements aux amplificateurs hydrauliques de freinage
FR2633574A1 (fr) Unite d'actionnement de freins pour vehicule automobile
FR2359349A1 (fr) Vanne de controle de la circulation d'un liquide
FR2489897A1 (fr) Ensemble hydraulique autonome

Legal Events

Date Code Title Description
ST Notification of lapse