GB854104A - Improvements relating to variable load valves for vacuum operable vehicle braking systems - Google Patents

Improvements relating to variable load valves for vacuum operable vehicle braking systems

Info

Publication number
GB854104A
GB854104A GB953257A GB953257A GB854104A GB 854104 A GB854104 A GB 854104A GB 953257 A GB953257 A GB 953257A GB 953257 A GB953257 A GB 953257A GB 854104 A GB854104 A GB 854104A
Authority
GB
United Kingdom
Prior art keywords
chamber
diaphragm
valve
variable load
vacuum
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
GB953257A
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 GB953257A priority Critical patent/GB854104A/en
Priority to DEW22992A priority patent/DE1083302B/en
Publication of GB854104A publication Critical patent/GB854104A/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
    • B60T13/465—Vacuum systems for railway vehicles
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/18—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution
    • B60T8/1837—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to vehicle weight or load, e.g. load distribution characterised by the load-detecting arrangements
    • B60T8/185—Arrangements for detecting vehicle level

Landscapes

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

Abstract

854,104. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd., SIMMONS, A. W., and WASHBOURN, J. March 18, 1958 [March 22, 1957], No. 9532/57. Class 103 (1). In a variable load valve device in which is provided a control spring against which is balanced the opposed action, on a diaphragm, of the pressures in the upper and lower chambers of a vacuum brake cylinder, the single flexible diaphragm is replaced by a damper of the kind sealed by upper and lower diaphragms which act in unison as a single controlling diaphragm of the variable load valve and comprises a first (upper) chamber 4 above the upper diaphragm 2 which is connected to the lower chamber of a vacuum brake cylinder, and a second (lower) chamber 6 below the lower diaphragm 3 which connects the upper chamber of the vacuum brake cylinder; a third chamber 15 being provided for connection to the vacuum train pipe and a first valve 13 controlling communication between the first chamber and the second chamber. A second valve 17 controls communication between the first chamber and the third chamber via hollow stem 11. A control spring 8 is arranged to be compressed by vehicle weight measuring means 10 to an extent determined by the weight of the vehicle, the resultant thrust being applied to the lower diaphragm 3 in a direction to close the first valve 13 and open the second valve 17. Specifications 746,149 and 768,112 are referred to.
GB953257A 1957-03-22 1957-03-22 Improvements relating to variable load valves for vacuum operable vehicle braking systems Expired GB854104A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB953257A GB854104A (en) 1957-03-22 1957-03-22 Improvements relating to variable load valves for vacuum operable vehicle braking systems
DEW22992A DE1083302B (en) 1957-03-22 1958-03-20 Control valve for a load-dependent braking device for vacuum brakes of railway vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB953257A GB854104A (en) 1957-03-22 1957-03-22 Improvements relating to variable load valves for vacuum operable vehicle braking systems

Publications (1)

Publication Number Publication Date
GB854104A true GB854104A (en) 1960-11-16

Family

ID=9873819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB953257A Expired GB854104A (en) 1957-03-22 1957-03-22 Improvements relating to variable load valves for vacuum operable vehicle braking systems

Country Status (2)

Country Link
DE (1) DE1083302B (en)
GB (1) GB854104A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186771A (en) * 1962-04-30 1965-06-01 Magneti Marelli Spa Device for proportionating the pneumatic braking of motor vehicles to the load transported by the vehicle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1555514B1 (en) * 1965-12-01 1972-05-31 Girling Ltd Brake pressure distributor for a hydraulic brake system for vehicles, especially motor vehicles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186771A (en) * 1962-04-30 1965-06-01 Magneti Marelli Spa Device for proportionating the pneumatic braking of motor vehicles to the load transported by the vehicle

Also Published As

Publication number Publication date
DE1083302B (en) 1960-06-15

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