GB908965A - Improvements in or relating to pneumatic brakes - Google Patents

Improvements in or relating to pneumatic brakes

Info

Publication number
GB908965A
GB908965A GB940259A GB940259A GB908965A GB 908965 A GB908965 A GB 908965A GB 940259 A GB940259 A GB 940259A GB 940259 A GB940259 A GB 940259A GB 908965 A GB908965 A GB 908965A
Authority
GB
United Kingdom
Prior art keywords
brake
air
brakes
compressed
vacuum
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
GB940259A
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 GmbH
Knorr Bremse AG
Original Assignee
KNORR BREMSE GmbH
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 GmbH, Knorr Bremse AG filed Critical KNORR BREMSE GmbH
Publication of GB908965A publication Critical patent/GB908965A/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
    • B60T13/46—Vacuum systems
    • B60T13/465—Vacuum systems for railway vehicles
    • 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
    • B60T15/36—Other control devices or valves characterised by definite functions
    • B60T15/58—Other control devices or valves characterised by definite functions for supplying control impulses through a secondary air pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

908,965. Pneumatic brakes. KNORRBREMSE G.m.b.H. March 18, 1959 [April 10, 1958], No. 9402/59. Class 103 (1). In a pneumatic braking installation for a train of vehicles in which hauled vehicles are braked by means of a vacuum system and the locomotive vehicle is braked by a compressedair system, the systems are coupled together by means of a relay valve 9 which is controllable pneumatically by each of the brake systems and arranged for transmitting their regulating processes reciprocally. The relay valve 9 consists of two pistons 21, 33, connected together in a coaxial fashion and which are acted upon on one side 25, 35, by constant or substantially constant pressure and on the other side, 11, 29, by the pressures in the brake control pipes (train pipes) of the vacuum 3 and compressed-air systems 1, respectively, the coupled pistons being arranged for actuating two control valves associated one, 43, with the compressed-air system and the other, 15, with the vacuum system. When the brakes are applied, the pressure in the compressed-air brake control pipe 1 is reduced by means of the driver's brake valve (not shown) so that the pressure in the control chamber 29 falls while being fully maintained on the other side of the piston 33 due to the closing of the non-return valve 53. The pistons 21 and 33 therefore descend and the brake valve 15 opens to allow air to pass from chamber 19 via chamber 11 to the pipe 3, thereby causing the vacuum brakes on the hauled vehicles to respond. In the case of application of the brakes initiated via vacuum brake-control pipe during emergency brake applications, the pressure in the piston chamber 11 rises rapidly and the piston system moves upwardly to lift valve 43 off its seat so that compressed-air is evacuated to atmosphere via pipe 49 and the spaces 47 and 41 whereby the compressed-air brakes are also applied.
GB940259A 1958-04-10 1959-03-18 Improvements in or relating to pneumatic brakes Expired GB908965A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0034559 1958-04-10

Publications (1)

Publication Number Publication Date
GB908965A true GB908965A (en) 1962-10-24

Family

ID=7220076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB940259A Expired GB908965A (en) 1958-04-10 1959-03-18 Improvements in or relating to pneumatic brakes

Country Status (1)

Country Link
GB (1) GB908965A (en)

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