GB1459686A - Distributors for compressed air brakes - Google Patents
Distributors for compressed air brakesInfo
- Publication number
- GB1459686A GB1459686A GB2461574A GB2461574A GB1459686A GB 1459686 A GB1459686 A GB 1459686A GB 2461574 A GB2461574 A GB 2461574A GB 2461574 A GB2461574 A GB 2461574A GB 1459686 A GB1459686 A GB 1459686A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- disc
- stem
- chamber
- pressure
- 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
- 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
-
- 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
- B60T15/184—Railway control or brake valves
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
1459686 Brake relay valves WERKZEUGMASCHINENFABRIK OERLIKONBUHRLE AG 4 June 1974 [6 July 1973] 24615/74 Heading F2F In a relay valve for controlling operation of a pneumatic brake cylinder 21, when the pressure in a chamber 16 connected to a main brake pipe 18 equals that in a chamber 15 connected to a control reservoir 17 a spring 41 depresses pistons 13, 14 and stem 11 causing the latter to disengage valve disc 31 which engages seat 30 on a piston 24, the brake cylinder thereby being isolated from air reservoir 36 and connected to vent port 43 via chamber 25, passage 12 in stem 11 and chamber 20. When the pressure in the main brake pipe is released somewhat to effect partial braking, pistons 13, 14 and the stem move upwards to cause the stem to abut the disc 31 and disengage it from seat 30, thereby disconnecting cylinder 21 from vent port 43 and connecting it instead to the reservoir 36, the pressure in cylinder consequently rising until the disc is reseated as a result of the outlet pressure acting on piston 14. If, on the other hand, the pressure in the brake pipe is reduced to zero to effect full braking, then the outlet pressure acting on piston 14 is unable to reseat disc 31, but in this case the outlet pressure acts to raise piston 24 against the bias of an adjustable spring 33 to engage the seat 30 with the disc. The upper side of piston 24 is permanently vented via port 28.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH986473A CH568175A5 (en) | 1973-07-06 | 1973-07-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1459686A true GB1459686A (en) | 1976-12-22 |
Family
ID=4356513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2461574A Expired GB1459686A (en) | 1973-07-06 | 1974-06-04 | Distributors for compressed air brakes |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT331846B (en) |
BE (1) | BE815999A (en) |
CH (1) | CH568175A5 (en) |
DE (1) | DE2425309C3 (en) |
FR (1) | FR2235822B1 (en) |
GB (1) | GB1459686A (en) |
IT (1) | IT1015636B (en) |
NL (1) | NL160527C (en) |
PL (1) | PL90883B1 (en) |
YU (1) | YU153274A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994012379A1 (en) * | 1992-12-02 | 1994-06-09 | Allied-Signal Inc. | Fluid pressure control valve |
EP1167152A2 (en) * | 2000-06-28 | 2002-01-02 | Westinghouse Air Brake Technologies Corporation | ECP manifold valve inserts |
EP1167153A3 (en) * | 2000-06-28 | 2004-01-02 | Westinghouse Air Brake Technologies Corporation | ECP manifold vent valve insert |
CN115214579A (en) * | 2022-07-15 | 2022-10-21 | 眉山中车制动科技股份有限公司 | Railway vehicle braking pressure limiting valve |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3003032A1 (en) * | 1980-01-29 | 1981-07-30 | Wabco Fahrzeugbremsen Gmbh, 3000 Hannover | PRESSURE CONTROL VALVE |
DE102007054760B3 (en) | 2007-11-16 | 2009-07-02 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Pressure relief valve for compressed air braked rail vehicles |
-
1973
- 1973-07-06 CH CH986473A patent/CH568175A5/xx not_active IP Right Cessation
-
1974
- 1974-05-21 AT AT422674A patent/AT331846B/en not_active IP Right Cessation
- 1974-05-24 DE DE19742425309 patent/DE2425309C3/en not_active Expired
- 1974-05-28 FR FR7418366A patent/FR2235822B1/fr not_active Expired
- 1974-06-03 YU YU153274A patent/YU153274A/en unknown
- 1974-06-04 GB GB2461574A patent/GB1459686A/en not_active Expired
- 1974-06-06 BE BE145148A patent/BE815999A/en not_active IP Right Cessation
- 1974-06-06 NL NL7407626A patent/NL160527C/en not_active IP Right Cessation
- 1974-07-03 IT IT2474274A patent/IT1015636B/en active
- 1974-07-03 PL PL17240674A patent/PL90883B1/pl unknown
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994012379A1 (en) * | 1992-12-02 | 1994-06-09 | Allied-Signal Inc. | Fluid pressure control valve |
US5346291A (en) * | 1992-12-02 | 1994-09-13 | Allied-Signal Inc. | Fluid pressure control valve with valve member mounted on guide pin slidably carried by piston |
EP1167152A2 (en) * | 2000-06-28 | 2002-01-02 | Westinghouse Air Brake Technologies Corporation | ECP manifold valve inserts |
EP1167153A3 (en) * | 2000-06-28 | 2004-01-02 | Westinghouse Air Brake Technologies Corporation | ECP manifold vent valve insert |
EP1167152A3 (en) * | 2000-06-28 | 2004-01-02 | Westinghouse Air Brake Technologies Corporation | ECP manifold valve inserts |
CN115214579A (en) * | 2022-07-15 | 2022-10-21 | 眉山中车制动科技股份有限公司 | Railway vehicle braking pressure limiting valve |
CN115214579B (en) * | 2022-07-15 | 2023-10-13 | 眉山中车制动科技股份有限公司 | Brake pressure limiting valve for railway vehicle |
Also Published As
Publication number | Publication date |
---|---|
ATA422674A (en) | 1975-12-15 |
NL160527B (en) | 1979-06-15 |
NL7407626A (en) | 1975-01-08 |
YU153274A (en) | 1982-06-30 |
AT331846B (en) | 1976-08-25 |
BE815999A (en) | 1974-09-30 |
NL160527C (en) | 1979-11-15 |
IT1015636B (en) | 1977-05-20 |
PL90883B1 (en) | 1977-02-28 |
FR2235822B1 (en) | 1979-05-25 |
DE2425309C3 (en) | 1980-02-28 |
DE2425309A1 (en) | 1975-01-30 |
FR2235822A1 (en) | 1975-01-31 |
CH568175A5 (en) | 1975-10-31 |
DE2425309B2 (en) | 1979-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19940603 |