CS374585A2 - Urychlovac rychlocinne brzdy pro neprimo pusobici tlakovzdusne brzdy - Google Patents
Urychlovac rychlocinne brzdy pro neprimo pusobici tlakovzdusne brzdyInfo
- Publication number
- CS374585A2 CS374585A2 CS853745A CS374585A CS374585A2 CS 374585 A2 CS374585 A2 CS 374585A2 CS 853745 A CS853745 A CS 853745A CS 374585 A CS374585 A CS 374585A CS 374585 A2 CS374585 A2 CS 374585A2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- brake pipe
- pressure
- main air
- outlet valve
- control
- Prior art date
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
- B60T15/36—Other control devices or valves characterised by definite functions
- B60T15/42—Other control devices or valves characterised by definite functions with a quick braking action, i.e. with accelerating valves actuated by brake-pipe pressure variation
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Braking Systems And Boosters (AREA)
- Braking Arrangements (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Regulating Braking Force (AREA)
Abstract
1. Emergency brake accelerator for indirectly acting compressed-air brakes on rail vehicles, comprising a control piston (1) to control an acceleration valve (14) inserted in a main air brake pipe vent, the control piston (1) being loaded on the one hand unrestrictedly by the pressure in the main air brake pipe in the closing direction of the acceleration valve (14) and on the other hand by a control pressure in a control chamber (3) which is connected to the main air brake pipe or to a reservoir fed by the main air brake pipe ; and comprising an outlet valve (21, 24) inserted in a vent of the control chamber (3), which outlet valve is controlled in the closing direction by a valve piston (17, 35) loaded by the main air brake pipe pressure, wherein, with the acceleration and outlet valves (14 and 21, 24) open, the main air brake pipe pressure is given a lower pressure reduction gradient than the control pressure by dimensioning the vent cross-sections accordingly to account for the various volumes that need venting, wherein the valve piston (17, 35) has, at least when the outlet valve (21, 24) is closed, two loading surfaces (18, 20) of different size, the larger (18) of which is exposed to the main air brake pipe pressure while the smaller one (20) is loaded in the opposite direction by the control pressure, and wherein a keeper device is provided which takes effect after the opening of the outlet valve (21, 24) and which has an external air chamber (23, 23') downstream of the outlet valve (21, 24) in the direction of flow to atmosphere, the pressure of the said external air chamber being applied to the valve piston (17, 35) additionally in the opening direction of the outlet valve (21, 24), and which keeper keeps the outlet valve (21, 24) open at least approximately until the equalization of the pressures in the main air brake pipe and control chamber (3) and which only then allows the outlet valve (21, 24) to close again.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843423507 DE3423507A1 (en) | 1984-06-26 | 1984-06-26 | QUICK BRAKE ACCELERATOR FOR INDIRECTLY OPERATING AIR BRAKES |
Publications (2)
Publication Number | Publication Date |
---|---|
CS374585A2 true CS374585A2 (en) | 1988-06-15 |
CS261882B2 CS261882B2 (en) | 1989-02-10 |
Family
ID=6239165
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS853745A CS261882B2 (en) | 1984-06-26 | 1985-05-24 | Quick-acting brake's accelerator for undirectly acting compressed-air brakes |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0166927B1 (en) |
AT (1) | ATE33113T1 (en) |
CS (1) | CS261882B2 (en) |
DD (1) | DD234647A5 (en) |
DE (2) | DE3423507A1 (en) |
HU (1) | HU201704B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101676156B (en) * | 2008-09-18 | 2012-02-22 | 陈仲明 | Electronic rear axle brake valve |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4145090A (en) * | 1977-03-21 | 1979-03-20 | Westinghouse Air Brake Company | Continual quick service valve device |
ZA786782B (en) * | 1977-12-15 | 1979-11-28 | Westinghouse Brake & Signal | Continuous quick service valves for braking systems |
ATA712879A (en) * | 1978-11-16 | 1988-10-15 | Knorr Bremse Ag | QUICK BRAKE ACCELERATOR FOR INDIRECTLY ACTIVE AIR BRAKES OF RAIL VEHICLES |
DE3060383D1 (en) * | 1979-04-06 | 1982-07-01 | Oerlikon Buehrle Ag | Quick-braking accelerator |
DE2929649C2 (en) * | 1979-07-21 | 1982-01-21 | Knorr-Bremse GmbH, 8000 München | Vent valve for rapid brake accelerator of rail vehicle air brakes |
DE3039686A1 (en) * | 1980-10-21 | 1982-05-27 | Knorr-Bremse GmbH, 8000 München | QUICK BRAKE ACCELERATOR |
-
1984
- 1984-06-26 DE DE19843423507 patent/DE3423507A1/en not_active Withdrawn
-
1985
- 1985-05-13 EP EP85105884A patent/EP0166927B1/en not_active Expired
- 1985-05-13 DE DE8585105884T patent/DE3561936D1/en not_active Expired
- 1985-05-13 AT AT85105884T patent/ATE33113T1/en not_active IP Right Cessation
- 1985-05-24 CS CS853745A patent/CS261882B2/en unknown
- 1985-06-24 DD DD85277692A patent/DD234647A5/en not_active IP Right Cessation
- 1985-06-25 HU HU852493A patent/HU201704B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0166927B1 (en) | 1988-03-23 |
EP0166927A1 (en) | 1986-01-08 |
DD234647A5 (en) | 1986-04-09 |
DE3561936D1 (en) | 1988-04-28 |
ATE33113T1 (en) | 1988-04-15 |
HU201704B (en) | 1990-12-28 |
HUT42391A (en) | 1987-07-28 |
CS261882B2 (en) | 1989-02-10 |
DE3423507A1 (en) | 1986-01-02 |
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