FR2456016A1 - Valve seal for vacuum brake servo - Google Patents

Valve seal for vacuum brake servo

Info

Publication number
FR2456016A1
FR2456016A1 FR8010387A FR8010387A FR2456016A1 FR 2456016 A1 FR2456016 A1 FR 2456016A1 FR 8010387 A FR8010387 A FR 8010387A FR 8010387 A FR8010387 A FR 8010387A FR 2456016 A1 FR2456016 A1 FR 2456016A1
Authority
FR
France
Prior art keywords
servo
valve
tube
membrane
valve seal
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
FR8010387A
Other languages
French (fr)
Other versions
FR2456016B1 (en
Inventor
Juan Belart
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.)
Continental Teves AG and Co oHG
Original Assignee
Alfred Teves 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
Priority claimed from DE19792918912 external-priority patent/DE2918912A1/en
Application filed by Alfred Teves GmbH filed Critical Alfred Teves GmbH
Publication of FR2456016A1 publication Critical patent/FR2456016A1/en
Priority claimed from DE19813115222 external-priority patent/DE3115222A1/en
Application granted granted Critical
Publication of FR2456016B1 publication Critical patent/FR2456016B1/en
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
    • B60T13/24—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
    • B60T13/563—Vacuum systems indirect, i.e. vacuum booster units with multiple booster units, e.g. tandem 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
    • B60T13/567—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of the casing or by its strengthening or mounting arrangements
    • 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
    • B60T13/569—Vacuum systems indirect, i.e. vacuum booster units characterised by piston details, e.g. construction, mounting of diaphragm

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The vacuum operated brake servo has a two part servo housing (36, 37) supported on an inner tube (10) in which the operating valve slides. The moving membrane is linked to the valve by radial pegs (41) in slots (30) in the tube, with the membrane extended to form a rolling seal as the servo operates. - The inner part of the membrane is clamped to the servo valve between the tube and the rest of the valve and has a wide fold to form the rolling seal. No complex sliding seals are required to separate the vacuum chamber from the atmospheric chamber in the servo while the inner tube reinforces the servo and prevents distortion of the thin metal housing.
FR8010387A 1979-05-10 1980-05-09 PRESSURE BRAKE FORCE AMPLIFIER Expired FR2456016B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792918912 DE2918912A1 (en) 1979-05-10 1979-05-10 BRAKE POWER AMPLIFIER
DE19813115222 DE3115222A1 (en) 1978-08-31 1981-04-15 Brake booster, especially for brake systems of motor vehicles

Publications (2)

Publication Number Publication Date
FR2456016A1 true FR2456016A1 (en) 1980-12-05
FR2456016B1 FR2456016B1 (en) 1986-12-12

Family

ID=25779069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8010387A Expired FR2456016B1 (en) 1979-05-10 1980-05-09 PRESSURE BRAKE FORCE AMPLIFIER

Country Status (1)

Country Link
FR (1) FR2456016B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479353A1 (en) * 1980-03-31 1981-10-02 Teves Gmbh Alfred FORCE AMPLIFIER CONTROLLING MECHANICALLY, IN PARTICULAR FOR HYDRAULIC BRAKING SYSTEMS FOR MOTOR VEHICLES
FR2527647A1 (en) * 1982-05-27 1983-12-02 Pechiney Aluminium REMOVABLE ALUMINUM POWER SUPPLY DEVICE OF AN ELECTROLYTIC TANK FOR THE PRODUCTION OF ALUMINUM

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482485A (en) * 1968-02-15 1969-12-09 Bendix Corp Fluid pressure servomotor
DE2811865A1 (en) * 1977-03-19 1978-09-21 Aisin Seiki DIAPHRAGM TANDEM BRAKE AMPLIFIER
FR2427496A1 (en) * 1978-05-31 1979-12-28 Tokico Ltd COMPRESSED AIR SERVO MOTOR
FR2434959A1 (en) * 1978-08-31 1980-03-28 Teves Gmbh Alfred BRAKE FORCE AMPLIFIER FOR MOTOR VEHICLE
FR2434738A2 (en) * 1978-09-01 1980-03-28 Girling Ltd Plastics moulded brake servo housing - is constructed with support plate on back of membrane and coaxial thrust sleeve
FR2443954A1 (en) * 1978-12-12 1980-07-11 Lucas Industries Ltd REINFORCED MASTER CYLINDER ASSEMBLIES FOR VEHICLE BRAKING SYSTEMS

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482485A (en) * 1968-02-15 1969-12-09 Bendix Corp Fluid pressure servomotor
DE2811865A1 (en) * 1977-03-19 1978-09-21 Aisin Seiki DIAPHRAGM TANDEM BRAKE AMPLIFIER
FR2427496A1 (en) * 1978-05-31 1979-12-28 Tokico Ltd COMPRESSED AIR SERVO MOTOR
FR2434959A1 (en) * 1978-08-31 1980-03-28 Teves Gmbh Alfred BRAKE FORCE AMPLIFIER FOR MOTOR VEHICLE
FR2434738A2 (en) * 1978-09-01 1980-03-28 Girling Ltd Plastics moulded brake servo housing - is constructed with support plate on back of membrane and coaxial thrust sleeve
FR2443954A1 (en) * 1978-12-12 1980-07-11 Lucas Industries Ltd REINFORCED MASTER CYLINDER ASSEMBLIES FOR VEHICLE BRAKING SYSTEMS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2479353A1 (en) * 1980-03-31 1981-10-02 Teves Gmbh Alfred FORCE AMPLIFIER CONTROLLING MECHANICALLY, IN PARTICULAR FOR HYDRAULIC BRAKING SYSTEMS FOR MOTOR VEHICLES
FR2527647A1 (en) * 1982-05-27 1983-12-02 Pechiney Aluminium REMOVABLE ALUMINUM POWER SUPPLY DEVICE OF AN ELECTROLYTIC TANK FOR THE PRODUCTION OF ALUMINUM

Also Published As

Publication number Publication date
FR2456016B1 (en) 1986-12-12

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Legal Events

Date Code Title Description
ST Notification of lapse