GB1508479A - Pneumatic braking circuit arrangement for a tractor vehicle and a trailer - Google Patents

Pneumatic braking circuit arrangement for a tractor vehicle and a trailer

Info

Publication number
GB1508479A
GB1508479A GB2598175A GB2598175A GB1508479A GB 1508479 A GB1508479 A GB 1508479A GB 2598175 A GB2598175 A GB 2598175A GB 2598175 A GB2598175 A GB 2598175A GB 1508479 A GB1508479 A GB 1508479A
Authority
GB
United Kingdom
Prior art keywords
line
trailer
pressure
brake
reservoir
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
GB2598175A
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.)
Unic Fiat SA Soc
Original Assignee
Unic Fiat SA Soc
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 Unic Fiat SA Soc filed Critical Unic Fiat SA Soc
Publication of GB1508479A publication Critical patent/GB1508479A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

1508479 Vehicle pneumatic braking SOC UNIC FIAT SA 18 June 1975 [19 June 1974] 25981/75 Heading F2F To vent the automatic air-pressure-released brakes of a trailer or semi-trailer on rupture of the trailer service brake line 4 of a tractortrailer combination, a valve 8 is provided with a spool element subject on opposing radial end faces to pressure, (through a line 12) from a tractor service brake line 1 or 2 and the trailer service line reservoirs (through a line 14) to selectively connect a line 7 to the trailer automatic brake to either a reservoir 5 or to atmosphere 15. As shown the line 14 is connected to the reservoir 5 and to the line 4 via a pilot valve 3. If there is a rupture in the line 4 the reservoir 5 will be drained on brake application until the spool 11 is moved to vent the line 7 and thus apply the pressure-release trailer brakes. A spring 13 may act on the spool 11 together with the pressure from the line 14. In alternatives (Figs. 3, 4, not shown) the pressure in line 4 is controlled directly by a two-circuit or three-circuit brake control valve.
GB2598175A 1974-06-19 1975-06-18 Pneumatic braking circuit arrangement for a tractor vehicle and a trailer Expired GB1508479A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421307A FR2275347A1 (en) 1974-06-19 1974-06-19 IMPROVEMENT OF PNEUMATIC BRAKING CIRCUITS BETWEEN A TRACTOR VEHICLE AND A TRAILER

Publications (1)

Publication Number Publication Date
GB1508479A true GB1508479A (en) 1978-04-26

Family

ID=9140252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2598175A Expired GB1508479A (en) 1974-06-19 1975-06-18 Pneumatic braking circuit arrangement for a tractor vehicle and a trailer

Country Status (3)

Country Link
DE (1) DE2527029A1 (en)
FR (1) FR2275347A1 (en)
GB (1) GB1508479A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439086A1 (en) * 1984-10-25 1986-05-15 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover RELAY VALVE DEVICE
EP3000672B1 (en) * 2014-05-30 2019-04-24 SAFIM S.p.A. Valve assembly for trailer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109442A (en) * 1961-10-11 1963-11-05 Berg Airlectro Products Co Tractor protection valve
DE1287957B (en) * 1963-02-27 1900-01-01

Also Published As

Publication number Publication date
FR2275347B1 (en) 1978-06-02
DE2527029A1 (en) 1976-01-08
FR2275347A1 (en) 1976-01-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920618