ES8405697A1 - Sealing hydraulic brake master cylinder assemblies - Google Patents

Sealing hydraulic brake master cylinder assemblies

Info

Publication number
ES8405697A1
ES8405697A1 ES524286A ES524286A ES8405697A1 ES 8405697 A1 ES8405697 A1 ES 8405697A1 ES 524286 A ES524286 A ES 524286A ES 524286 A ES524286 A ES 524286A ES 8405697 A1 ES8405697 A1 ES 8405697A1
Authority
ES
Spain
Prior art keywords
seal
master cylinder
piston
rear end
bore
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
Application number
ES524286A
Other languages
Spanish (es)
Other versions
ES524286A0 (en
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.)
General Motors France SA
Original Assignee
General Motors France SA
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 General Motors France SA filed Critical General Motors France SA
Publication of ES524286A0 publication Critical patent/ES524286A0/en
Publication of ES8405697A1 publication Critical patent/ES8405697A1/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
    • B60T13/565—Vacuum systems indirect, i.e. vacuum booster units characterised by being associated with master cylinders, e.g. integrally formed
    • 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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)

Abstract

A master cylinder assembly 10 for a hydraulic brake system includes a relatively short primary pressurizing piston 32 that is slidably mounted in a longitudinal bore 14 of a master cylinder housing 12. A static fluid/air seal constituted by an annular elastomeric seal 60 is located in the housing bore in the region of an open rear end of the bore. The seal 60 includes a pair of inwardly directed annular sealing lips 62 which in use engage an output push rod 74 of an associated brake booster 76 to provide a dynamic pressure fluid seal. To maintain a low-pressure fluid seal at the rear end of the master cylinder housing bore during assembly and other handling of the master cylinder, the static seal 60 includes a forwardly directed annular sealing region 64 for co-operation with an annular sealing region 66 provided on the rear end face of the primary piston 32, at a position radially outwardly of a recessed central region 72 for receiving the booster output push rod. Rearward movement of the primary piston under the action of a pair of piston return springs 40 and 46 is limited by a piston stop constituted by a spring ring 50 that is located in a circumferential groove formed in the housing bore immediately forwardly of a circumferential groove accommodating the static seal.
ES524286A 1982-07-21 1983-07-20 Sealing hydraulic brake master cylinder assemblies Expired ES8405697A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08221129A GB2123910B (en) 1982-07-21 1982-07-21 Sealing hydraulic brake master cylinder assemblies

Publications (2)

Publication Number Publication Date
ES524286A0 ES524286A0 (en) 1984-06-16
ES8405697A1 true ES8405697A1 (en) 1984-06-16

Family

ID=10531815

Family Applications (1)

Application Number Title Priority Date Filing Date
ES524286A Expired ES8405697A1 (en) 1982-07-21 1983-07-20 Sealing hydraulic brake master cylinder assemblies

Country Status (5)

Country Link
DE (1) DE3323323A1 (en)
ES (1) ES8405697A1 (en)
FR (1) FR2530564B1 (en)
GB (1) GB2123910B (en)
IT (1) IT1172298B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176552A (en) * 1985-06-14 1986-12-31 Automotive Products Plc A hydraulic master cylinder
GB2253884A (en) * 1991-03-21 1992-09-23 Gen Motors France Dual master cylinder
DE4232807A1 (en) * 1992-02-14 1993-08-19 Teves Gmbh Alfred PISTON WITH A CLAMPING ROD ROD
RU2131393C1 (en) * 1998-06-08 1999-06-10 Государственная академия нефти и газа им.И.М.Губкина Method of replacement of worn cable in block-and-tackle system of drilling rig (versions)
GB2349187B (en) * 1999-04-23 2003-09-17 Automotive Prod France Hydraulic cylinders

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR826516A (en) * 1937-09-10 1938-04-01 Hydraulic brake
DE1755727U (en) * 1955-02-19 1957-11-07 Teves Kg Alfred SECONDARY COLLAR FOR PRESSURE PISTON OF LIQUID BRAKES, IN PARTICULAR FOR MOTOR VEHICLES.
US3237526A (en) * 1964-01-17 1966-03-01 Kelsey Hayes Co Spring-assisted fluid pressure motor mechanism
US3426531A (en) * 1967-09-11 1969-02-11 Bendix Corp Master cylinder boot
DE2313375A1 (en) * 1973-03-17 1974-09-19 Bendix Gmbh TANDEM MASTER CYLINDER
GB2032554A (en) * 1978-10-23 1980-05-08 Lucas Industries Ltd Master cylinders
DE2928091A1 (en) * 1979-07-12 1981-01-22 Opel Adam Ag Oil seal for master brake cylinder - has collecting sump outside cylinder for seepage collection
GB2067251B (en) * 1979-12-08 1984-05-16 Nissin Kogyo Kk Tandem type master cylinder
GB2082277B (en) * 1980-08-14 1984-05-10 Lucas Industries Ltd Master cylinder
GB2086512B (en) * 1980-10-29 1984-05-23 Lucas Industries Ltd Venting and replenishing vehicle hydraulic master cylinders

Also Published As

Publication number Publication date
DE3323323A1 (en) 1984-02-02
GB2123910B (en) 1985-06-05
IT1172298B (en) 1987-06-18
IT8348668A0 (en) 1983-07-12
FR2530564B1 (en) 1986-04-11
ES524286A0 (en) 1984-06-16
FR2530564A1 (en) 1984-01-27
GB2123910A (en) 1984-02-08
DE3323323C2 (en) 1989-03-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970519