GB1388511A - Control valve and system - Google Patents

Control valve and system

Info

Publication number
GB1388511A
GB1388511A GB5267972A GB5267972A GB1388511A GB 1388511 A GB1388511 A GB 1388511A GB 5267972 A GB5267972 A GB 5267972A GB 5267972 A GB5267972 A GB 5267972A GB 1388511 A GB1388511 A GB 1388511A
Authority
GB
United Kingdom
Prior art keywords
reservoir
pressure
service
brake
rod
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
GB5267972A
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.)
Wagner Electric Corp
Original Assignee
Wagner Electric Corp
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 Wagner Electric Corp filed Critical Wagner Electric Corp
Priority to GB5267972A priority Critical patent/GB1388511A/en
Priority to DE19722258212 priority patent/DE2258212A1/en
Publication of GB1388511A publication Critical patent/GB1388511A/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
    • 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
    • B60T15/04—Driver's valves
    • B60T15/041—Driver's valves controlling auxiliary pressure brakes, e.g. parking or emergency brakes
    • 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
    • B60T13/261—Compressed-air systems systems with both indirect application and application by springs or weights and released by compressed air
    • B60T13/263—Compressed-air systems systems with both indirect application and application by springs or weights and released by compressed air specially adapted for coupling with dependent systems, e.g. tractor-trailer systems

Landscapes

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

Abstract

1388511 Valves; fluid pressure brakes WAGNER ELECTRIC CORP 15 Nov 1972 52679/72 Headings F2V and F2F A control valve 12 for use in a braking system comprises an inlet 34 for connection to a reservoir 10 of pressure fluid, filled from a service reservoir 7 through a check valve 15, and an outlet 35 through which the reservoir is normally connected to a spring-set portion 3 of a brake 4 to maintain that portion inoperative. The valve has a push-rod 37 which is normally pushed to the right from the position shown so that a piston 43 blanks an exhaust port 33. A control piston 47 carried by the push-rod is normally held in an ineffective position to the right of that shown by pressure applied to a control port 36 from the service reservoir 7 of pressure fluid, but if the pressure in that reservoir falls below a predetermined value, a spring 54 is able to move the control piston 47 to the left as shown, and with it, by virtue of an abutment ring 51, the push-rod 37. A closure member portion 46 is thus moved to connect the outlet 35 to the exhaust 33 instead of the inlet 34. Pressure thus falls in the line 11a to the spring-set portion 3 of the brake 4 which is thus operated. The brake may be temporarily disengaged by manually pushing in the push-rod 37 so as to reconnect the brake portion 3 with the reservoir 10, and, when service pressure has been restored, the system is re-set by pushing in the rod 37. In a system for a tractor-trailer combination, Fig. 4 (not shown), a relay valve (105) is interposed between the control valve outlet and the tractor brake and is supplied by a further reservoir (101) fed through a checkvalve (103) from the reservoir 6. The control valve outlet is also connected to a service reservoir (121) and a further reservoir (117), both on the trailer, and these are connected through relay valves (125, 115) to the service and spring- set portions (4a, 3a) of the trailer brake. A switching spool valve, Fig. 6 (not shown), controlled by the service pressure acting on a piston (222) on the end of the spool may be arranged normally to connect the service pressure to the inlet of the control valve 12 but, when the service pressure falls, to connect the reservoir 6 to that inlet.
GB5267972A 1972-11-15 1972-11-15 Control valve and system Expired GB1388511A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5267972A GB1388511A (en) 1972-11-15 1972-11-15 Control valve and system
DE19722258212 DE2258212A1 (en) 1972-11-15 1972-11-28 CONTROL VALVE IN PARTICULAR FOR USE IN VEHICLE BRAKING SYSTEMS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5267972A GB1388511A (en) 1972-11-15 1972-11-15 Control valve and system
DE19722258212 DE2258212A1 (en) 1972-11-15 1972-11-28 CONTROL VALVE IN PARTICULAR FOR USE IN VEHICLE BRAKING SYSTEMS

Publications (1)

Publication Number Publication Date
GB1388511A true GB1388511A (en) 1975-03-26

Family

ID=25764151

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5267972A Expired GB1388511A (en) 1972-11-15 1972-11-15 Control valve and system

Country Status (2)

Country Link
DE (1) DE2258212A1 (en)
GB (1) GB1388511A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014575A1 (en) * 1979-02-08 1980-08-20 Bendix Limited Trailer or semi-trailer vehicle braking apparatus
FR2467122A1 (en) * 1979-10-12 1981-04-17 Bosch Gmbh Robert Parking brake for pneumatic system - includes stepped control valve with spring support

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645270A (en) * 1984-02-09 1987-02-24 Repco Limited Vehicle brake system and valve
DE3535973A1 (en) * 1985-10-09 1987-04-09 Wabco Westinghouse Fahrzeug PRESSURE-OPERATED BRAKE SYSTEM OF A VEHICLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014575A1 (en) * 1979-02-08 1980-08-20 Bendix Limited Trailer or semi-trailer vehicle braking apparatus
FR2467122A1 (en) * 1979-10-12 1981-04-17 Bosch Gmbh Robert Parking brake for pneumatic system - includes stepped control valve with spring support

Also Published As

Publication number Publication date
DE2258212A1 (en) 1974-06-20

Similar Documents

Publication Publication Date Title
GB1112330A (en) Control valve and system
GB1532310A (en) Vehicle brake system
US2941844A (en) Tractor-trailer brake system
GB1388511A (en) Control valve and system
GB1158673A (en) Improvements in Vehicle Brake Systems
SE7706540L (en) TWO-WIDE BRAKE SYSTEM FOR TRAILERS
GB1142855A (en) Improvements in hydraulic braking systems
GB1471291A (en) Anti-lock control system
US2344902A (en) Brake system
GB1291089A (en) Pressure proportioning valve for hydraulic brake systems
US2369994A (en) Brake releasing apparatus
US3411834A (en) Braking systems of articulated vehicles
GB1453593A (en) Brake systems
GB1453862A (en) Brake pressure control assemblies
US2106479A (en) Fluid pressure brake
US3009324A (en) Fluid pressure operated hydraulic brake apparatus
GB1134031A (en) Improvements in or relating to braking systems for vehicles
GB1093346A (en) Improvements in or relating to fluid valves
US2099396A (en) Fluid pressure brake
GB1206784A (en) Improvements in or relating to brakes for road vehicles with trailers
SE335071B (en)
GB1110540A (en) Fluid pressure brake system
GB1324595A (en) Control valves for hydraulic fluids
GB1159879A (en) Improvements in or relating to Hydraulic-Control Brake Systems of Vehicles
US2295796A (en) Brake control means

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees