GB2414519A - Brake actuator - Google Patents

Brake actuator Download PDF

Info

Publication number
GB2414519A
GB2414519A GB0518076A GB0518076A GB2414519A GB 2414519 A GB2414519 A GB 2414519A GB 0518076 A GB0518076 A GB 0518076A GB 0518076 A GB0518076 A GB 0518076A GB 2414519 A GB2414519 A GB 2414519A
Authority
GB
United Kingdom
Prior art keywords
chamber
brake actuator
chambers
supply
fluid pressure
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
GB0518076A
Other versions
GB2414519B (en
GB0518076D0 (en
Inventor
Laurence John Potter
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.)
Haldex Brake Products Ltd
Original Assignee
Haldex Brake Products 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
Application filed by Haldex Brake Products Ltd filed Critical Haldex Brake Products Ltd
Publication of GB0518076D0 publication Critical patent/GB0518076D0/en
Publication of GB2414519A publication Critical patent/GB2414519A/en
Application granted granted Critical
Publication of GB2414519B publication Critical patent/GB2414519B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/28—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged apart from the brake
    • 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
    • B60T17/08—Brake cylinders other than ultimate actuators
    • B60T17/083—Combination of service brake actuators with spring loaded brake actuators
    • 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
    • B60T17/08—Brake cylinders other than ultimate actuators
    • B60T17/085—Spring loaded brake actuators
    • B60T17/086—Spring loaded brake actuators with emergency release device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/12—Fluid pressure for releasing a normally applied brake, the type of actuator being irrelevant or not provided for in groups F16D2121/04 - F16D2121/10
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/06—Pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Braking Arrangements (AREA)

Abstract

A brake actuator (10) comprising a first chamber (12) and a second chamber (14), the chambers (12, 14) each having an inlet to permit supply of fluid pressure to the chambers (12, 14), a pressure responsive element (26) movable in the first chamber (12) in a direction generally parallel to an axis (A) of the brake actuator (10), between a braking position and an inoperative position, in response to supply of fluid pressure to the first chamber (12), and an auxiliary element (42) movable in the second chamber (14) in response to supply of fluid pressure to the second chamber (14) between an inactive position and an active position in which the auxiliary element (42) acts on the pressure responsive element (26) to urge the pressure responsive element (26) towards the braking position, wherein one of the first (12) or second (14) chambers is arranged at least partially radially outwardly of the other of the first (12) or second (14) chambers with respect to the axis A of the brake actuator (10).

Description

GB 2414519 A continuation (74) Agent and/or Address for Service: Forrester
Ketley & Co Chamberlain House, Paradise Place, BIRMINGHAM, B3 3HP, United Kingdom
GB0518076A 2003-03-06 2004-03-05 Brake actuator Expired - Fee Related GB2414519B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0305125A GB2399143A (en) 2003-03-06 2003-03-06 Brake actuator with co-axial service and parking brake elements
PCT/GB2004/000888 WO2004078549A1 (en) 2003-03-06 2004-03-05 Brake actuator

Publications (3)

Publication Number Publication Date
GB0518076D0 GB0518076D0 (en) 2005-10-12
GB2414519A true GB2414519A (en) 2005-11-30
GB2414519B GB2414519B (en) 2006-07-05

Family

ID=9954233

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0305125A Withdrawn GB2399143A (en) 2003-03-06 2003-03-06 Brake actuator with co-axial service and parking brake elements
GB0518076A Expired - Fee Related GB2414519B (en) 2003-03-06 2004-03-05 Brake actuator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0305125A Withdrawn GB2399143A (en) 2003-03-06 2003-03-06 Brake actuator with co-axial service and parking brake elements

Country Status (2)

Country Link
GB (2) GB2399143A (en)
WO (1) WO2004078549A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10591009B2 (en) 2017-02-16 2020-03-17 Tse Brakes, Inc. Vehicle spring brakes having reduced length

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188922A (en) * 1962-10-12 1965-06-15 Wagner Electric Corp Friction device operating mechanism
FR2203731A1 (en) * 1972-10-20 1974-05-17 Magneti Marelli Spa
GB1382507A (en) * 1972-04-20 1975-02-05 British Leyland Truck & Bus Vehicle braking system
GB2030651A (en) * 1978-09-20 1980-04-10 Teves Gmbh Alfred Brake Actuators
EP0452621A1 (en) * 1990-03-30 1991-10-23 Knorr-Bremse Ag Combined service and spring brake cylinder for vehicle brake systems, especially for utility vehicles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255676A (en) * 1962-08-22 1966-06-14 Berg Mfg & Sales Co Delayed action spring brake assembly
US3181433A (en) * 1962-10-12 1965-05-04 Wagner Electric Corp Friction device operating mechanism
FR1541630A (en) * 1966-11-03 1968-10-04 Teves Gmbh Alfred Hydraulic and mechanical maneuvering device
GB1390531A (en) * 1972-03-01 1975-04-16 Girling Ltd Brake actuator units

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188922A (en) * 1962-10-12 1965-06-15 Wagner Electric Corp Friction device operating mechanism
GB1382507A (en) * 1972-04-20 1975-02-05 British Leyland Truck & Bus Vehicle braking system
FR2203731A1 (en) * 1972-10-20 1974-05-17 Magneti Marelli Spa
GB2030651A (en) * 1978-09-20 1980-04-10 Teves Gmbh Alfred Brake Actuators
EP0452621A1 (en) * 1990-03-30 1991-10-23 Knorr-Bremse Ag Combined service and spring brake cylinder for vehicle brake systems, especially for utility vehicles

Also Published As

Publication number Publication date
GB2414519B (en) 2006-07-05
GB0305125D0 (en) 2003-04-09
GB0518076D0 (en) 2005-10-12
GB2399143A (en) 2004-09-08
WO2004078549A1 (en) 2004-09-16

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20170324 AND 20170330

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20200305