GB1498683A - Compressed air brake systems - Google Patents
Compressed air brake systemsInfo
- Publication number
- GB1498683A GB1498683A GB1885375A GB1885375A GB1498683A GB 1498683 A GB1498683 A GB 1498683A GB 1885375 A GB1885375 A GB 1885375A GB 1885375 A GB1885375 A GB 1885375A GB 1498683 A GB1498683 A GB 1498683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- line
- trailer
- pressure
- chamber
- 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
- B60T13/26—Compressed-air systems
- B60T13/268—Compressed-air systems using accumulators or reservoirs
-
- 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
-
- 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
-
- 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)
- Regulating Braking Force (AREA)
Abstract
1498683 Air braking systems; valves ROBERT BOSCH GmbH 6 May 1975 [5 Nov 1974] 18853/75 Headings F2F and F2V A test valve 22 in a compressed air braking system tests the spring-applied parking brakes 18, 19 of a tractor vehicle by releasing the trailer brakes only when the parking brakes are applied, the test valve being locked from movement when the parking brakes are pressurized and thus released. The braking system comprises a compressor 1 supplying through a pressure regulator 2 both reservoirs 5, 6 connectable by a brake valve 10 to respective actuators 11, 12 and a trailer brake control valve 15; a trailer air supply line 9 and through a check value 8 a reservoir 7 connected to the test valve line 25, the parking brake valve 16 and a relay valve 17 controlled from the valve 16 through a line 20 connected also by a line 21 to the test valve 22. The control valve 15 is responsive to increase in pressure in one or both of lines 13, 14 or a decrease in pressure in the line 23 from the test value to actuate the trailer brakes. The two position three-chamber test valve 22 includes a spool 32 movable axially by rotation of a member 31 having cam surfaces 35 engageable with a pin 29 and splined to a rotary knob 26 with slots to accommodate the pin 29. In the position shown and with the valve 16 in its parking brake release condition, the line 21 and chamber 44 are pressurized, the valve is locked by the pressure acting on a piston head 47 of the valve in addition to the loading of a spring 36 and the pressure in the lower chamber 37 which is connected to the line 25 and hence the reservoir 7. When the tractor parking brake is applied by releasing the pressure in the lines 20 and 21 and the chamber 44 the spool may be depressed by rotating the knob 26. when the trailer control valve line 23 is pressurized from the chamber 37 and the trailer brakes released.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742452299 DE2452299A1 (en) | 1974-11-05 | 1974-11-05 | TEST VALVE FOR A COMPRESSED AIR BRAKE SYSTEM IN A TRAILER OR TRAILER |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1498683A true GB1498683A (en) | 1978-01-25 |
Family
ID=5929999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1885375A Expired GB1498683A (en) | 1974-11-05 | 1975-05-06 | Compressed air brake systems |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2452299A1 (en) |
FR (1) | FR2290335A1 (en) |
GB (1) | GB1498683A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102407841A (en) * | 2010-09-21 | 2012-04-11 | 陈言平 | High-pressure airbrake system for heavy truck |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4063624A (en) * | 1976-06-14 | 1977-12-20 | Caterpillar Tractor Co. | High-reliability air brake system with transmission neutralizer providing a plurality of operational modes |
DE10353056B4 (en) * | 2003-11-13 | 2006-04-20 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Operating device of an electric parking brake of a vehicle |
DE102007033694B3 (en) * | 2007-07-19 | 2008-12-04 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Parking brake for a trailer |
DE102018121311A1 (en) | 2018-08-31 | 2020-03-05 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Method, control device and control system for controlling a parking brake system for a vehicle combination with a towing vehicle and a trailer |
-
1974
- 1974-11-05 DE DE19742452299 patent/DE2452299A1/en not_active Ceased
-
1975
- 1975-05-06 GB GB1885375A patent/GB1498683A/en not_active Expired
- 1975-11-05 FR FR7533852A patent/FR2290335A1/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102407841A (en) * | 2010-09-21 | 2012-04-11 | 陈言平 | High-pressure airbrake system for heavy truck |
Also Published As
Publication number | Publication date |
---|---|
FR2290335A1 (en) | 1976-06-04 |
FR2290335B1 (en) | 1980-07-18 |
DE2452299A1 (en) | 1976-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |