GB717632A - Improvements relating to pneumatically operated hydraulic braking apparatus for vehicle braking systems - Google Patents

Improvements relating to pneumatically operated hydraulic braking apparatus for vehicle braking systems

Info

Publication number
GB717632A
GB717632A GB1855052A GB1855052A GB717632A GB 717632 A GB717632 A GB 717632A GB 1855052 A GB1855052 A GB 1855052A GB 1855052 A GB1855052 A GB 1855052A GB 717632 A GB717632 A GB 717632A
Authority
GB
United Kingdom
Prior art keywords
piston
liquid
chamber
brake
hydraulic
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
GB1855052A
Inventor
Aloysius Graham Brackenbury
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB1855052A priority Critical patent/GB717632A/en
Priority to FR1086437D priority patent/FR1086437A/fr
Publication of GB717632A publication Critical patent/GB717632A/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
    • B60T13/26—Compressed-air systems
    • 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
    • F16D65/38—Slack adjusters
    • F16D65/72—Slack adjusters hydraulic
    • F16D65/74—Slack adjusters hydraulic self-acting in one direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

717,632. Hydraulic brakes. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. June 26, 1953 [July 22, 1952], No. 18550/52. Class 103(1) A brake cylinder for vehicles incorporates an hydraulic intensifier unit which is operated pneumatically by compressed air or vacuum so that no hydraulic piping is necessary and the risk of liquid leakage is reduced. The compressed air or vacuum from the brake control valve acts against a piston 1 reciprocal in a cylinder 2 in communication with a hydraulic reservoir 9. In the rearmost position of the piston 1, liquid can flow from chamber 2a to chamber 6a in front of the reduced inner end of the piston through holes 7. When a brake application is initiated by air pressure at connection 27. The first movement of piston 1 cuts off holes 7 and the pressure of liquid in chamber 6a acts against the piston 14 of a slack adjusting unit. Movement of piston 14 compresses liquid in chamber 13a which passes through holes 19 and acts against the inner face of a piston 20 which bears against a power ram 22 acting on the brake blocks. The space 13a behind the piston 14 when this is in its left hand position, corresponds to the liquid displacement necessary to take up the normal brake shoe clearance. If piston 14 reaches the end of its travel before the clearance has been taken up, liquid can flow past the non- return valve 18. If on the return stroke the piston 14 should reach its endmost position before the piston 5 has uncovered ports 7, liquid may flow from chamber 2a to chamber 6a past a non-return valve 12 in the piston 5.
GB1855052A 1952-07-22 1952-07-22 Improvements relating to pneumatically operated hydraulic braking apparatus for vehicle braking systems Expired GB717632A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1855052A GB717632A (en) 1952-07-22 1952-07-22 Improvements relating to pneumatically operated hydraulic braking apparatus for vehicle braking systems
FR1086437D FR1086437A (en) 1952-07-22 1953-07-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1855052A GB717632A (en) 1952-07-22 1952-07-22 Improvements relating to pneumatically operated hydraulic braking apparatus for vehicle braking systems

Publications (1)

Publication Number Publication Date
GB717632A true GB717632A (en) 1954-10-27

Family

ID=10114356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1855052A Expired GB717632A (en) 1952-07-22 1952-07-22 Improvements relating to pneumatically operated hydraulic braking apparatus for vehicle braking systems

Country Status (2)

Country Link
FR (1) FR1086437A (en)
GB (1) GB717632A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005447A1 (en) * 1994-08-05 1996-02-22 Alliedsignal Inc. Aircraft brake piston hydraulic adjuster assembly
CN113184743A (en) * 2021-05-08 2021-07-30 鞍山彩盛机械制造有限公司 Gas-liquid dual-power disc brake system for oil field drilling machine and workover rig

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996005447A1 (en) * 1994-08-05 1996-02-22 Alliedsignal Inc. Aircraft brake piston hydraulic adjuster assembly
CN113184743A (en) * 2021-05-08 2021-07-30 鞍山彩盛机械制造有限公司 Gas-liquid dual-power disc brake system for oil field drilling machine and workover rig

Also Published As

Publication number Publication date
FR1086437A (en) 1955-02-11

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