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GB2016102A - Hydraulic brake booster and auxiliary accumulator valve member - Google Patents

Hydraulic brake booster and auxiliary accumulator valve member

Info

Publication number
GB2016102A
GB2016102A GB7907111A GB7907111A GB2016102A GB 2016102 A GB2016102 A GB 2016102A GB 7907111 A GB7907111 A GB 7907111A GB 7907111 A GB7907111 A GB 7907111A GB 2016102 A GB2016102 A GB 2016102A
Authority
GB
United Kingdom
Prior art keywords
bore
valve member
pressure chamber
storage chamber
piston
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
GB7907111A
Other versions
GB2016102B (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.)
Bendix Corp
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Publication of GB2016102A publication Critical patent/GB2016102A/en
Application granted granted Critical
Publication of GB2016102B publication Critical patent/GB2016102B/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
    • B60T13/12—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
    • 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
    • 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

Landscapes

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

Abstract

A hydraulic brake booster includes a pressure piston 18 within a housing 12 movable in response to pressurized fluid within a pressure chamber 17 to effect a brake application. The piston encloses an auxiliary accumulator or storage chamber 60 and forms a bore 76 communicating the storage chamber 60 with the pressure chamber. A valve member 74 is disposed within the bore 76 to control communication between the storage chamber 60 and the pressure chamber 17. An operator operated actuator 40 cooperates with a control valve spool 30 to normally communicate pressurized fluid from a pump to the pressure chamber but a finger 100 is actuated by the operator actuator to engage the valve member 74, thereby opening communication between the storage chamber and the pressure chamber on pump failure. The valve member (Figure 2) comprises a unitary assembly having a sleeve 78 sealingly engaging the wall of the piston bore 76, a seat member 84 biased into engagement with a shoulder 82 defined by a stepped bore on the sleeve, and a stem 90 extending through a bore on the seat member and engageable by the finger 100. <IMAGE>
GB7907111A 1978-03-13 1979-02-28 Hydraulic brake booster and auxiliary accumulator valve member Expired GB2016102B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88582578A 1978-03-13 1978-03-13

Publications (2)

Publication Number Publication Date
GB2016102A true GB2016102A (en) 1979-09-19
GB2016102B GB2016102B (en) 1982-06-09

Family

ID=25387777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7907111A Expired GB2016102B (en) 1978-03-13 1979-02-28 Hydraulic brake booster and auxiliary accumulator valve member

Country Status (8)

Country Link
JP (1) JPS5855022B2 (en)
AR (1) AR216718A1 (en)
AU (1) AU518545B2 (en)
CA (1) CA1116208A (en)
DE (1) DE2909734A1 (en)
FR (1) FR2419851A1 (en)
GB (1) GB2016102B (en)
IT (1) IT1110623B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493425A2 (en) * 1980-11-03 1982-05-07 Teves Gmbh Alfred FORCE HYDRAULIC AMPLIFIER

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6732518B1 (en) * 2002-12-02 2004-05-11 Robert Bosch Corporation Hydraulic brake booster

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3695731A (en) * 1968-02-01 1972-10-03 Michael John England Vehicle braking system
CA1080281A (en) * 1976-09-13 1980-06-24 Arthur K. Brown Hydraulic brake booster reserve system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493425A2 (en) * 1980-11-03 1982-05-07 Teves Gmbh Alfred FORCE HYDRAULIC AMPLIFIER

Also Published As

Publication number Publication date
JPS54126878A (en) 1979-10-02
DE2909734A1 (en) 1979-09-20
FR2419851B1 (en) 1984-10-19
AU518545B2 (en) 1981-10-08
IT1110623B (en) 1985-12-23
FR2419851A1 (en) 1979-10-12
IT7920869A0 (en) 1979-03-09
GB2016102B (en) 1982-06-09
CA1116208A (en) 1982-01-12
AR216718A1 (en) 1980-01-15
AU4480579A (en) 1979-09-20
JPS5855022B2 (en) 1983-12-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960228