FR2256058A1 - Vehicle air brake system safety valve - has central diaphragm shutting off outlets to each circuit - Google Patents

Vehicle air brake system safety valve - has central diaphragm shutting off outlets to each circuit

Info

Publication number
FR2256058A1
FR2256058A1 FR7346828A FR7346828A FR2256058A1 FR 2256058 A1 FR2256058 A1 FR 2256058A1 FR 7346828 A FR7346828 A FR 7346828A FR 7346828 A FR7346828 A FR 7346828A FR 2256058 A1 FR2256058 A1 FR 2256058A1
Authority
FR
France
Prior art keywords
safety valve
diaphragm
shutting
outlets
circuit
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
FR7346828A
Other languages
French (fr)
Other versions
FR2256058B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7346828A priority Critical patent/FR2256058A1/en
Priority to BE151317A priority patent/BE823133A/en
Priority to IT5466974A priority patent/IT1026095B/en
Priority to DE19742460637 priority patent/DE2460637A1/en
Priority to ES433251A priority patent/ES433251A1/en
Publication of FR2256058A1 publication Critical patent/FR2256058A1/en
Application granted granted Critical
Publication of FR2256058B1 publication Critical patent/FR2256058B1/fr
Granted 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
    • 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
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • 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
    • B60T11/28—Valves specially adapted therefor
    • B60T11/32—Automatic cut-off valves for defective pipes
    • B60T11/326—Automatic cut-off valves for defective pipes in pneumatic systems
    • 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
    • B60T17/18—Safety devices; Monitoring
    • 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
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/226—Devices for monitoring or checking brake systems; Signal devices using devices being responsive to the difference between the fluid pressions in conduits of multiple braking systems

Landscapes

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

Abstract

Two sets of brake cylinders are supplied by separate pipes connected by the safety valve to a common supply line. The valve has a balance chamber divided into two compartments by a flexible diaphragm. The latter can be subjected to opposite return forces. Each compartment has an entry port connected to the supply line, also an outlet port leading to one of the pipes to the brake cylinders. This latter port can be shut off by the diaphragm. Each outlet port can be incorporated in the end of a boss protruding into one of the compartments, and cylindrical in shape, acting as a seating for a return spring acting on the diaphragm. The inlets can be in the form of restrictors, of the same calibration.
FR7346828A 1973-12-28 1973-12-28 Vehicle air brake system safety valve - has central diaphragm shutting off outlets to each circuit Granted FR2256058A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7346828A FR2256058A1 (en) 1973-12-28 1973-12-28 Vehicle air brake system safety valve - has central diaphragm shutting off outlets to each circuit
BE151317A BE823133A (en) 1973-12-28 1974-12-09 SAFETY VALVE FOR COMPRESSED AIR BRAKING SYSTEMS OF VEHICLES
IT5466974A IT1026095B (en) 1973-12-28 1974-12-19 SAFETY VALVE FOR COMPRESSED AIR BRAKING SYSTEM FOR VEHICLES
DE19742460637 DE2460637A1 (en) 1973-12-28 1974-12-20 Vehicle air brake system safety valve - has central diaphragm shutting off outlets to each circuit
ES433251A ES433251A1 (en) 1973-12-28 1974-12-21 Improvements introduced in a safety valve for compressed vehicle air braking system. (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7346828A FR2256058A1 (en) 1973-12-28 1973-12-28 Vehicle air brake system safety valve - has central diaphragm shutting off outlets to each circuit

Publications (2)

Publication Number Publication Date
FR2256058A1 true FR2256058A1 (en) 1975-07-25
FR2256058B1 FR2256058B1 (en) 1977-03-04

Family

ID=9129892

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7346828A Granted FR2256058A1 (en) 1973-12-28 1973-12-28 Vehicle air brake system safety valve - has central diaphragm shutting off outlets to each circuit

Country Status (2)

Country Link
BE (1) BE823133A (en)
FR (1) FR2256058A1 (en)

Also Published As

Publication number Publication date
BE823133A (en) 1975-06-09
FR2256058B1 (en) 1977-03-04

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Legal Events

Date Code Title Description
ST Notification of lapse