FR2327895A1 - Pressure control for rail vehicle air brakes - has changeover valve with control slide, charged by control pressure - Google Patents

Pressure control for rail vehicle air brakes - has changeover valve with control slide, charged by control pressure

Info

Publication number
FR2327895A1
FR2327895A1 FR7630924A FR7630924A FR2327895A1 FR 2327895 A1 FR2327895 A1 FR 2327895A1 FR 7630924 A FR7630924 A FR 7630924A FR 7630924 A FR7630924 A FR 7630924A FR 2327895 A1 FR2327895 A1 FR 2327895A1
Authority
FR
France
Prior art keywords
control
pressure
slide
charged
changeover valve
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
FR7630924A
Other languages
French (fr)
Other versions
FR2327895B1 (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.)
Knorr Bremse AG
Original Assignee
Knorr Bremse AG
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 Knorr Bremse AG filed Critical Knorr Bremse AG
Publication of FR2327895A1 publication Critical patent/FR2327895A1/en
Application granted granted Critical
Publication of FR2327895B1 publication Critical patent/FR2327895B1/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
    • 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

Landscapes

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

Abstract

The pressure control unit is for load-dependent pneumatic brakes, esp. for rail vehicles. It creates a lower resp. higher pressure in a connected brake cylinder, dependent upon a control pressure, which corresponds to the load at that particular moment. The control pressure (T) charges a changeover valve with control slide (3). The slide may be locked in positions for a higher resp. lower brake cylinder pressure (C). The valve is formed, so that the slide may be located in a fixed position at the start of each braking period. The valve has a spring-loaded sealing piston, wich at the start of each braking period is charged by a servo pressure (Cv) or brake cylinder pressure (C), against a spring, to actuate the control slide.
FR7630924A 1975-10-18 1976-10-14 Pressure control for rail vehicle air brakes - has changeover valve with control slide, charged by control pressure Granted FR2327895A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752546865 DE2546865A1 (en) 1975-10-18 1975-10-18 PRESSURE TRANSLATOR FOR LOAD DEPENDENT COMPRESSED AIR BRAKES, IN PARTICULAR FOR RAILWAYS

Publications (2)

Publication Number Publication Date
FR2327895A1 true FR2327895A1 (en) 1977-05-13
FR2327895B1 FR2327895B1 (en) 1982-09-03

Family

ID=5959555

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7630924A Granted FR2327895A1 (en) 1975-10-18 1976-10-14 Pressure control for rail vehicle air brakes - has changeover valve with control slide, charged by control pressure

Country Status (2)

Country Link
DE (1) DE2546865A1 (en)
FR (1) FR2327895A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039147A3 (en) * 1999-03-24 2003-08-06 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Means for controlled activation of a valve switching member, especially for a goods vehicle container switching valve

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1720284A (en) * 1928-04-16 1929-07-09 Westinghouse Air Brake Co Variable-load brake
US2830849A (en) * 1952-10-25 1958-04-15 Westinghouse Air Brake Co Empty and load fluid pressure brake apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE335607C (en) * 1914-10-01 1921-04-05 Westinghouse Brake Company Ltd Air brake device
DE800683C (en) * 1948-12-28 1950-11-27 Knorr Bremse Gmbh Device for automatic adjustment of the brake pressure of compressed air brakes to the load on the vehicle
CH550332A (en) * 1972-10-02 1974-06-14 Bbc Brown Boveri & Cie HYDRAULIC PILOT VALVE.
GB1496793A (en) * 1976-04-07 1978-01-05 Fodens Ltd Pneumatic actuating devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1720284A (en) * 1928-04-16 1929-07-09 Westinghouse Air Brake Co Variable-load brake
US2830849A (en) * 1952-10-25 1958-04-15 Westinghouse Air Brake Co Empty and load fluid pressure brake apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039147A3 (en) * 1999-03-24 2003-08-06 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Means for controlled activation of a valve switching member, especially for a goods vehicle container switching valve

Also Published As

Publication number Publication date
DE2546865A1 (en) 1977-04-21
FR2327895B1 (en) 1982-09-03
DE2546865C2 (en) 1987-01-15

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse