ES8206311A1 - Relay valves for trailer brakes - Google Patents

Relay valves for trailer brakes

Info

Publication number
ES8206311A1
ES8206311A1 ES504331A ES504331A ES8206311A1 ES 8206311 A1 ES8206311 A1 ES 8206311A1 ES 504331 A ES504331 A ES 504331A ES 504331 A ES504331 A ES 504331A ES 8206311 A1 ES8206311 A1 ES 8206311A1
Authority
ES
Spain
Prior art keywords
inlet chamber
valve
trailer
trailer brakes
relay valves
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
ES504331A
Other languages
Spanish (es)
Other versions
ES504331A0 (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.)
Graubremse GmbH
Original Assignee
Graubremse GmbH
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 Graubremse GmbH filed Critical Graubremse GmbH
Publication of ES504331A0 publication Critical patent/ES504331A0/en
Publication of ES8206311A1 publication Critical patent/ES8206311A1/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
    • 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
    • B60T8/1812—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 means for pressure reduction
    • B60T8/1818—Lever mechanism
    • 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
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
    • B60T15/24—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere controlled by three fluid pressures

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

A dual-line trailer brake valve with a relay action incorporates a charging valve 25, 26 by which the trailer reservoir 13 is charged from the supply line 3. The charging valve is supplied from an inlet chamber 22 and opens when pressure in the chamber reaches a predetermined value. Air flows to the inlet chamber from supply line 3 or from reservoir 13 through non-return valves 23, 31. The inlet chamber also supplies the relay valve elements 19, 20, 21, leading to brake actuator 5.
ES504331A 1980-07-10 1981-07-09 Relay valves for trailer brakes Expired ES8206311A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3026154A DE3026154C2 (en) 1980-07-10 1980-07-10 Dual line trailer emergency valve

Publications (2)

Publication Number Publication Date
ES504331A0 ES504331A0 (en) 1982-08-16
ES8206311A1 true ES8206311A1 (en) 1982-08-16

Family

ID=6106878

Family Applications (1)

Application Number Title Priority Date Filing Date
ES504331A Expired ES8206311A1 (en) 1980-07-10 1981-07-09 Relay valves for trailer brakes

Country Status (6)

Country Link
DE (1) DE3026154C2 (en)
ES (1) ES8206311A1 (en)
FR (1) FR2486478A1 (en)
GB (1) GB2079882B (en)
IT (1) IT1138029B (en)
YU (1) YU41252B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713138C2 (en) * 1987-04-16 2000-04-27 Knorr Bremse Systeme Trailer brake valve for commercial vehicles
DE102016102278A1 (en) * 2016-02-10 2017-08-10 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Relay valve device of a pneumatic or electro-pneumatic motor vehicle brake device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932291C (en) * 1944-08-18 1955-08-29 Graubremse Gmbh Control valve for air brakes of vehicle trailers
DE835846C (en) * 1951-02-24 1952-04-07 Westinghouse Bremsen Ges M B H Three-pressure control valve for the compressed air brake of load trailers
FR1401647A (en) * 1963-06-15 1965-06-04 Lancia & Co Fabrica Automobili Pneumatic braking installation for motor trains composed of a motor and a trailer, of the type in which the installation of the motor is connected to the installation of the trailer by means of two pipes, respectively for the adjustable control and for automatic control
DE1555608C3 (en) * 1966-10-10 1975-07-03 Graubremse Gmbh, 6900 Heidelberg Dual-circuit dual-line braking system for trailers
GB1364818A (en) * 1973-02-13 1974-08-29 Scovill Manufacturing Co Relay valve assembly
FR2224329A1 (en) * 1973-04-07 1974-10-31 Graubremse Gmbh Dual circuit brake circuit braking valve - uses spring loaded pistons responsive to reservoir and brake pressures
DE2342542C2 (en) * 1973-08-23 1975-08-28 Graubremse Gmbh, 6900 Heidelberg Two-line two-circuit trailer emergency valve

Also Published As

Publication number Publication date
YU41252B (en) 1986-12-31
DE3026154C2 (en) 1982-09-23
ES504331A0 (en) 1982-08-16
IT8122847A0 (en) 1981-07-09
DE3026154A1 (en) 1982-02-04
YU166481A (en) 1983-12-31
FR2486478A1 (en) 1982-01-15
GB2079882A (en) 1982-01-27
FR2486478B1 (en) 1984-06-01
GB2079882B (en) 1985-01-03
IT1138029B (en) 1986-09-10

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970505