GB609709A - Improvements in or relating to compressed air-operated brakes - Google Patents
Improvements in or relating to compressed air-operated brakesInfo
- Publication number
- GB609709A GB609709A GB1129344A GB1129344A GB609709A GB 609709 A GB609709 A GB 609709A GB 1129344 A GB1129344 A GB 1129344A GB 1129344 A GB1129344 A GB 1129344A GB 609709 A GB609709 A GB 609709A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- control
- brake
- reservoir
- 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
609,709. Brakes. CHRISTEN, F. June 13, 1944, No. 11293. [Class 103 (i)] In a compressed air brake, the control reservoir 3 is isolated, immediately the brake pipe pressure falls, from the auxiliary reservoir 2 and the brake pipe 9, by a valve 8 which is operated by a metallic bellows 21, the inside of which is subjected to pressure when the brake pipe is vented, through the accelerator valve 7 and the cut-off valve 35, to the pipes 23, 24, 33, into the brake cylinder. The valve 35 is promptly closed by control reservoir pressure in the metallic bellows 38. A throttle passage 19 is provided in the piston 16 of a quickinshot valve 4, which piston is raised by auxiliary reservoir pressure when the brake pipe pressure falls. This seats the piston against the cover of the valve 4 and shuts off the passage 19 and raises the valve 25 to connect the auxiliary reservoir with the brake cylinder. This connection is stopped when a predetermined brake cylinder pressure is attained, by the depression of a piston 30 carrying a valve 28. The auxiliary reservoir is then connected to the brake cylinder by the normal action of the control valve 6. The reservoirs 2, 3 are charged through valves 45, 46 and a pipe 44 which may include a valve having a metallic bellows, the inside of which is subjected to control reservoir pressure and the outside to auxiliary reservoir pressure, so that the valve opens if auxiliary reservoir pressure falls sufficiently below control reservoir pressure. The auxiliary and control reservoirs may be connected by means comprising valves, the compression springs of which are regulable by cam means, for releasing excess control reservoir pressure. In a modification, the valve 20 closes over a seating having small ports communicating with a throttle passage, corresponding to the passage 19, leading from the brake pipe to the seating. The closing of the valve on the seating isolates the control reservoir, auxiliary reservoir and brake pipe from one another.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1129344A GB609709A (en) | 1944-06-13 | 1944-06-13 | Improvements in or relating to compressed air-operated brakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1129344A GB609709A (en) | 1944-06-13 | 1944-06-13 | Improvements in or relating to compressed air-operated brakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB609709A true GB609709A (en) | 1948-10-06 |
Family
ID=9983564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1129344A Expired GB609709A (en) | 1944-06-13 | 1944-06-13 | Improvements in or relating to compressed air-operated brakes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB609709A (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 |
-
1944
- 1944-06-13 GB GB1129344A patent/GB609709A/en not_active Expired
Cited By (2)
| 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 |
| EP4173908A4 (en) * | 2021-09-14 | 2023-08-30 | Meishan CRRC Brake Science & Technology Co., Ltd. | Auxiliary reservoir air charge system and express freight train air brake system |
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