GB991699A - Improvements in or relating to fluid-operated brakes - Google Patents
Improvements in or relating to fluid-operated brakesInfo
- Publication number
- GB991699A GB991699A GB3792860A GB3792860A GB991699A GB 991699 A GB991699 A GB 991699A GB 3792860 A GB3792860 A GB 3792860A GB 3792860 A GB3792860 A GB 3792860A GB 991699 A GB991699 A GB 991699A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- brake
- valve
- spindle
- bulb
- 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
- 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
- B60T15/18—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere
- B60T15/24—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere controlled by three fluid pressures
- B60T15/30—Triple or other relay valves which allow step-wise application or release and which are actuated by brake-pipe pressure variation to connect brake cylinders or equivalent to compressed air or vacuum source or atmosphere controlled by three fluid pressures with a quick braking action
- B60T15/302—Railway control or brake valves with evacuation of air to a reservoir, to the atmosphere or to the brake cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
991,699. Compressed air brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Oct. 26, 1961 [Nov. 4, 1960], No. 37928/60. Heading F2F. A graduated release distributer for braking equipment includes a quick service valve having a movable housing 4 which contains a quick service bulb inlet valve 7, 8. The arrangement is such that the housing is moved from a first to a second position, at the beginning of the brake application, immediately after quick service is initiated and is maintained in the second position until approaching the end of the subsequent brake release. Two diaphragms 14, 15 are mounted between the housing of the distributer and a spindle 41 slidable in the housing. Together with the housing, the diaphragms 14, 15 form four chambers 16, 17, 20, 21 connected to the brake cylinder, atmosphere, brake pipe, and control reservoir respectively. In the initial position of the distributer the brake cylinders are vented to the atmosphere through passage 34 in spindle 41. Spindle 41 also possesses a valve stem 27 acting as a communication between the bulb through a passage 24 and an exhaust passage 10. The spring-loaded quick service valve communicates with the brake pipe through a passage 26. As the brake pipe pressure is decreased the differential pressure across diaphragm 15 actuates spindle 41, valve stem 27 opening valve 7, 8 to allow brake pipe fluid to expand into the bulb. The increase in pressure below valve housing 4 overcomes the force of spring 6, the housing rising against a stop 42. The movement of spindle 41 unseats valve member 30 to connect the brake cylinders with the auxiliary reservoir. On release of the brakes and venting of the bulb through 10, housing 4 returns to its initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3792860A GB991699A (en) | 1960-11-04 | 1960-11-04 | Improvements in or relating to fluid-operated brakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3792860A GB991699A (en) | 1960-11-04 | 1960-11-04 | Improvements in or relating to fluid-operated brakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB991699A true GB991699A (en) | 1965-05-12 |
Family
ID=10400000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3792860A Expired GB991699A (en) | 1960-11-04 | 1960-11-04 | Improvements in or relating to fluid-operated brakes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB991699A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023039957A1 (en) * | 2021-09-14 | 2023-03-23 | 眉山中车制动科技股份有限公司 | Auxiliary reservoir air charge system and express freight train air brake system |
-
1960
- 1960-11-04 GB GB3792860A patent/GB991699A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023039957A1 (en) * | 2021-09-14 | 2023-03-23 | 眉山中车制动科技股份有限公司 | Auxiliary reservoir air charge system and express freight train air brake system |
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