GB1000497A - Improvements in or relating to emergency control valves for power brake systems for motor vehicles fitted with trailers - Google Patents

Improvements in or relating to emergency control valves for power brake systems for motor vehicles fitted with trailers

Info

Publication number
GB1000497A
GB1000497A GB342664A GB342664A GB1000497A GB 1000497 A GB1000497 A GB 1000497A GB 342664 A GB342664 A GB 342664A GB 342664 A GB342664 A GB 342664A GB 1000497 A GB1000497 A GB 1000497A
Authority
GB
United Kingdom
Prior art keywords
valve
inlet
air
diaphragm
compressed air
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
GB342664A
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.)
PATONS BRAKE REPLACEMENTS PROP
Original Assignee
PATONS BRAKE REPLACEMENTS PROP
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
Priority claimed from AU27192/63A external-priority patent/AU259157B2/en
Application filed by PATONS BRAKE REPLACEMENTS PROP filed Critical PATONS BRAKE REPLACEMENTS PROP
Publication of GB1000497A publication Critical patent/GB1000497A/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
    • B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
    • B60T13/403—Compressed-air systems indirect, i.e. compressed air booster units indirect systems specially adapted for coupling with dependent systems, e.g. tractor-trailer 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

Landscapes

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

Abstract

1,000,497. Brake control valves; valves. PATONS BRAKE REPLACEMENTS PROPRIETARY Ltd. Jan. 27, 1964 [Feb. 8, 1963], No. 3426/64. Headings F2F and F2V. An emergency control valve for compressed air power brake systems for motor vehicles fitted with trailers comprises a hollow body portion 2 having an air inlet port 8 and a plurality of air outlet ports 19, 21, an inlet valve 14 for controlling the passage of compressed air from the inlet to the outlets, a spring influenced diaphragm 6 located between the inlet and outlet ports and carrying a displaceable valve seating 26, the spring 18 associated with the diaphragm being adapted to urge the seating 26 towards the inlet valve 14 against the influence of in-flowing air, and manually adjustable venting means 31 having a seating 36 which is also engageable by the inlet valve 14. As shown, the inlet of the valve is connected to a compressed air storage tank 11 (or pump) and the outlets are connected by pipes 22, 23 respectively to the trailer braking system and a main control valve unit 24 on the vehicle. The latter acting to apply the trailer brakes on actuation of the driver's valve 46 to apply the vehicle brakes. When the air compressor is started pressure acts on the diaphragm 6 and causes it to move upwardly until the upper end of the valve seat 26 abuts stop 38, the inlet valve 14 closing the venting means 31, so that the braking system of the trailer is primed. The brakes will then work normally. However, if the air line 22 breaks compressed air in the line 22 will escape and the diaphragm 6 and valve seat 26 will move downwardly until the latter engages the inlet valve 14. The pressure in the tank 11 will be reduced but will be sufficient for emergency braking of the vehicle. Preferably, a breakaway valve applies the trailer brakes. If the driver now moves a lever 41 to move the venting means upwardly by the cable 39, the pressure in the tank may rise to its normal value without opening the inlet valve.
GB342664A 1963-02-08 1964-01-27 Improvements in or relating to emergency control valves for power brake systems for motor vehicles fitted with trailers Expired GB1000497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU27192/63A AU259157B2 (en) 1963-02-09 Improvements in or relating to emergency control valves for power brake equipment for motor vehicles and trailers andthe like

Publications (1)

Publication Number Publication Date
GB1000497A true GB1000497A (en) 1965-08-04

Family

ID=3715531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB342664A Expired GB1000497A (en) 1963-02-08 1964-01-27 Improvements in or relating to emergency control valves for power brake systems for motor vehicles fitted with trailers

Country Status (1)

Country Link
GB (1) GB1000497A (en)

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