GB1358110A - Gas-pressure-operated brake control apparatus - Google Patents
Gas-pressure-operated brake control apparatusInfo
- Publication number
- GB1358110A GB1358110A GB3744672A GB3744672A GB1358110A GB 1358110 A GB1358110 A GB 1358110A GB 3744672 A GB3744672 A GB 3744672A GB 3744672 A GB3744672 A GB 3744672A GB 1358110 A GB1358110 A GB 1358110A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chamber
- valve
- line
- trailer
- piston
- 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
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
-
- 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
-
- 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)
- Braking Systems And Boosters (AREA)
Abstract
1358110 Pneumatic braking systems; relay valves KNORR-BREMSE GmbH 10 Aug 1972 [13 Aug 1971] 37446/72 Heading F2F A compressed air brake system for a vehicle with a trailer comprises a service brake valve 3 operable to control pressure in main control lines 4, 5 connected to service brake cylinders 6, 7 respectively, and an auxiliary brake valve 11 operable to control pressure in an auxiliary line 12 connected to a spring-load brake cylinder 14: the system also includes a trailer brake valve assembly 15 operable to control a trailer brake via a trailer brake control line 24-the assembly 15 is operable by actuation of valves 3 or 11 and continues to function to give trailer braking even if one of the lines 4 or 5 or 12 fails. The valve assembly 15 comprises a double valve 16, 17 of which valve 16 controls the connection of a chamber 18 with atmosphere and valve 17 controls the connection of chamber 18 with a feed chamber 19; the trailer line 24 is connected with chamber 18. The feed chamber 19 has connection with two reservoirs 8, 9 via respective relief valves 20, 22; and the reservoir 8 is connected with auxiliary valve 11 via a pipeline 10 whilst reservoir 9 is connected via pipeline 21 with a trailer supply line 41. The valve assembly 15 also includes a piston 26 controlled by the pressure in a chamber 27 connected to line 5 and movable to actuate the double valve 16, 17. Pistons 32, 43 separate the chamber 27 from a chamber 33 connected with the control line 4, and the chamber 33 is separated by a fixed partition 34 from a chamber 35 connected to the line 12. The chamber 35 is bounded by a piston 31 on the other side of which there is control chamber 36 connected via a passageway 37 containing a throttle 38 with a connection 39 between the pipe-line 10 and the valve assembly 15. The piston 31 has a rod 30 movable to abut a pistonrod 28 of the piston 26. For service braking the valve 3 is actuated whereby lines 4 and 5 are filled from pipe-lines 1 and 2 which are connected to two sources of compressed air and cylinders 6, 7 are actuated: pistons 32, 43 are exposed to at least substantially identical pressures on both sides and are unmoved but piston 26 is moved downwardly to close valve 16, open valve 17 and cause flow to the trailer brake via chambers 18, 19 and line 24. If line 4 fails pistons 32, 43 will be biased upwardly until piston 32 abuts against a stop 45 but piston 26 will still operate the double valve 16, 17; if line 5 fails pistons 43, 32 will be moved downwardly to move piston 26 to actuate double valve 16, 17. For auxiliary braking, valve 11 is actuated to reduce pressure in line 12 and spring-loaded cylinder 14 which is thereby actuated. The pressure in chamber 35 is also decreased which allows the prevailing pressure in chamber 36 to move piston 31 downwardly against a compression spring 10 and bring rods 30, 28 into abutment to move piston 26 and operate double valve 16, 17 to give trailer braking. Should damage occur during vehicle travel to empty the cylinder 14 whereby the vehicle will be braked: the damage will cause reservoir 8 to empty via valve 11 but pressure in chamber 36 is lost only gradually owing to the presence of throttle 38 in passageway 37. Hence pressure in' chamber 36 predominates over pressure in chamber 35 which is lost immediately and piston 31 is moved downwardly and trailer braking is initiated for a period until chamber 36 loses pressure. The cylinder 14 can thereafter be brought back to its released condition by an emergency device and service braking for both vehicle and trailer is still available. The pistons 32, 43 may be spring-biased apart. The trailer supply line may be connected to a source of compressed air other than pipe-line 21.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712140688 DE2140688A1 (en) | 1971-08-13 | 1971-08-13 | COMPRESSED AIR BRAKE SYSTEM FOR ROAD VEHICLES |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1358110A true GB1358110A (en) | 1974-06-26 |
Family
ID=5816715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3744672A Expired GB1358110A (en) | 1971-08-13 | 1972-08-10 | Gas-pressure-operated brake control apparatus |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE2140688A1 (en) |
FR (1) | FR2149379A1 (en) |
GB (1) | GB1358110A (en) |
HU (1) | HU167474B (en) |
IT (1) | IT961668B (en) |
SE (1) | SE377783B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008025400A1 (en) * | 2006-08-31 | 2008-03-06 | Wabco Gmbh | Valve unit, brake control device, vehicle brake system and vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT988941B (en) * | 1973-06-12 | 1975-04-30 | Magneti Marelli Spa | TRIPLE COMAN DO SERVODISTRIBUTOR FOR PNEUMATIC VEHICLE BRAKES |
-
1971
- 1971-08-13 DE DE19712140688 patent/DE2140688A1/en active Pending
-
1972
- 1972-07-24 IT IT5171672A patent/IT961668B/en active
- 1972-08-08 FR FR7228561A patent/FR2149379A1/fr not_active Withdrawn
- 1972-08-10 GB GB3744672A patent/GB1358110A/en not_active Expired
- 1972-08-11 SE SE1047172A patent/SE377783B/xx unknown
- 1972-08-11 HU HUKO002529 patent/HU167474B/hu unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008025400A1 (en) * | 2006-08-31 | 2008-03-06 | Wabco Gmbh | Valve unit, brake control device, vehicle brake system and vehicle |
US8297714B2 (en) | 2006-08-31 | 2012-10-30 | Wabco Gmbh | Valve unit for a brake control device |
Also Published As
Publication number | Publication date |
---|---|
DE2140688A1 (en) | 1973-02-22 |
HU167474B (en) | 1975-10-28 |
FR2149379A1 (en) | 1973-03-30 |
SE377783B (en) | 1975-07-28 |
IT961668B (en) | 1973-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1252169A (en) | ||
US3712340A (en) | Hydraulic and air operated relay valve | |
GB1038873A (en) | Fluid pressure control system and valve therefor | |
US3087760A (en) | Multiple brake system | |
US3841714A (en) | Parking brake control | |
GB1294987A (en) | ||
US3095244A (en) | Brake system and control valve therefor | |
GB938216A (en) | Fluid operated braking system | |
GB1358110A (en) | Gas-pressure-operated brake control apparatus | |
GB1456929A (en) | Pneumatic to hydraulic converter with integral dump chamber for a braking system | |
GB600357A (en) | Combined air and hydraulic pressure brake actuating system | |
US2708451A (en) | Grommet valve means | |
GB955414A (en) | Improvements relating to a vent valve device for compressed fluid braking apparatus | |
US3502374A (en) | Brake cylinder release valve | |
GB1459686A (en) | Distributors for compressed air brakes | |
US2820344A (en) | Brake operating mechanism | |
GB1291089A (en) | Pressure proportioning valve for hydraulic brake systems | |
GB1410407A (en) | Anti-skid device for pressure operated brakes | |
GB1366595A (en) | Valve device for controlling operation of a brake cylinder | |
GB1346615A (en) | ||
US3115161A (en) | Brake systems and control valve therefor | |
US2804178A (en) | Power brakes with transfer valve | |
GB1453593A (en) | Brake systems | |
US2586450A (en) | Control device | |
GB1202312A (en) | A shut-off device for driver's brake valves of compressed air brake installations on rail vehicles |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |