China type 120 brake valve ECP manifold

• US 7,144,090 B2
• Filed: 05/10/2005
• Issued: 12/05/2006
• Est. Priority Date: 05/28/2004
• Status: Active Grant

• Current Assignee: Wabtec Holding Corp (Westinghouse Air Brake Technologies Corporation)
• Original Assignee: Wabtec Holding Corp (Westinghouse Air Brake Technologies Corporation)
• Inventors: Gayle, Patrick L., Kull, Robert C.
• Primary Examiner(s): KRAMER, DEVON C
• Application Number:
  US11/125,834
• Publication Number:
  US 20050264101A1
• Time in Patent Office: 574 Days
• Field of Search: 303/7, 303/118.1, 303/119.3, 303/119.1, 303/119.2, 303/20
• US Class Current: 303/118.1
• CPC Class Codes: B60T 13/683 in pneumatic systems or parts thereof in vacuum systems B60T13/72

Abstract

A China Type 120 Brake Valve ECP Manifold includes a manifold block in fluid communication with at least one source of fluid pressure for communicating fluid pressure signals. A plurality of apertures formed through such manifold block allows fluid communication therethrough. The manifold block is engageable intermediate a pipe bracket and a service portion. A first passageway in such manifold block has fluid communication with a first aperture at a first end and has a second end adjacent an upper face of the manifold block. A second passageway in such manifold block has fluid communication with such service portion at a first end and has a second end adjacent an upper face of the manifold block. A third passageway in such manifold block has fluid communication with a second aperture at a first end and has a second end adjacent an upper face of such manifold block. A fourth passageway in such manifold block has fluid communication with such pipe bracket at a first end, is fluidly connected to such second and such third passageways, and has fluid connections adjacent an upper face of such manifold block. A control module engageable with the manifold block controls a plurality of valve devices, communicates with a car control device and fluid pressure sensing devices having fluid communication with at least one of such first, second, third, and fourth passageways. An exhaust passageway in such manifold block fluidly communicates with the fourth passageway, allowing fluid to exhaust to atmosphere.

Claims

1. A China Type 120 Brake Valve ECP Manifold, said ECP manifold comprising:

(a) a manifold block configured for fluid communication with at least one source of fluid pressure for receiving and transmitting fluid pressure signals;

(b) a plurality of apertures formed through said manifold block from a face of a pipe bracket to a face of a service portion for allowing fluid communication directly through said manifold block;

(c) a means engageable with said pipe bracket at said face of said pipe bracket and a service portion at said face of said service portion for securing said manifold block intermediate said pipe bracket and said service portion;

(d) a first passageway (bp) disposed in said manifold block in fluid communication with a first one of said plurality of apertures at a first end and having a second end adjacent an upper face of said manifold block for allowing communication of fluid pressure therethrough;

(e) a second passageway (bc sp) disposed in said manifold block in fluid communication with said service portion at a first end adjacent said face of said service portion and having a second end adjacent an upper face of said manifold block for allowing communication of fluid pressure therethrough;

(f) a third passageway (res) disposed in said manifold block in fluid communication with a second one of said plurality of apertures at a first end and having a second end adjacent an upper face of said manifold block for allowing communication of fluid pressure therethrough;

(g) a fourth passageway (bc pb) disposed in said manifold block in fluid communication with said pipe bracket at a first end adjacent said face of said pipe bracket and fluidly connected to said second passageway and fluidly connected to said third passageway and having a predetermined plurality of fluid connections adjacent an upper face of said manifold block for allowing communication of fluid pressure therethrough;

(h) a control module engageable with said manifold block for controlling a predetermined plurality of valve means and for communicating with a car control device and for communicating with a predetermined plurality of fluid pressure sensing means having fluid communication with said at least one of said first, said second, said third, and said fourth passageways; and

(i) an exhaust passageway disposed in said manifold block in fluid communication with said fourth passageway for allowing fluid to exhaust to atmosphere.

2. A China Type 120 Brake Valve ECP Manifold according to claim 1, wherein said Brake Valve ECP Manifold further includes an isolation volume disposed within said manifold block and in fluid communication with said second passageway and said fourth passageway and having an opening adjacent said upper face of said manifold block for storing a predetermined volume of fluid and containment of an isolation valve assembly.

3. A China Type 120 Brake Valve ECP Manifold according to claim 2, wherein said isolation valve assembly is a diaphragm type relay valve assembly.

4. A China Type 120 Brake Valve ECP Manifold according to claim 1, wherein said Brake Valve ECP Manifold further includes a vent insert chamber disposed within said manifold block and in fluid communication with said exhaust passageway and said fourth passageway for storing a predetermined volume of fluid and containment of a vent valve assembly and for controlling the flow of fluid pressure exhausting to atmosphere.

5. A China Type 120 Brake Valve ECP Manifold according to claim 4, wherein said vent valve assembly is an insert-type relay valve assembly.

6. A China Type 120 Brake Valve ECP Manifold according to claim 1, wherein said Brake Valve ECP Manifold further includes a fill insert chamber disposed within said manifold block in fluid communication with said third passageway and said fourth passageway for storing a predetermined volume of fluid and containment of a fill valve assembly for controlling the flow of fluid pressure from said third passageway to said fourth passageway.

7. A China Type 120 Brake Valve ECP Manifold according to claim 6, wherein said fill valve assembly is an insert-type relay valve assembly.

8. A China Type 120 Brake Valve ECP Manifold according to claim 2, wherein said Brake Valve ECP Manifold further includes a coin plate having a first face engageable with said upper face of said manifold block and a second face engageable with said control module and having fluid communication with at least one of said first, said second, said third, said fourth passageways and said isolation volume for allowing communication of fluid pressure therethrough.

9. A China Type 120 Brake Valve ECP Manifold according to claim 1, wherein said predetermined plurality of valve means are solenoid type valves.

10. A China Type 120 Brake Valve ECP Manifold according to claim 9, wherein said solenoid valves are a low power, low flow capacity type.

11. A China Type 120 Brake Valve ECP Manifold according to claim 1, wherein said control module contains at least one microprocessor.

12. A China Type 120 Brake Valve ECP Manifold according to claim 11, wherein said control module contains a pair of microprocessors.

13. A China Type 120 Brake Valve ECP Manifold according to claim 12, wherein a second one of said pair of microprocessors provides redundant safety checking functions.

14. A China Type 120 Brake Valve ECP Manifold according to claim 13, wherein said redundant safety checking functions include pneumatic emergency operation while in ECP mode that insures said isolation valve assembly is released in the event of a pneumatic emergency.

15. A China Type 120 Brake Valve ECP Manifold according to claim 13, wherein said redundant safety checking functions include protection from allowing venting of a brake cylinder pressure when a reservoir pressure is below a predetermined level.

16. A China Type 120 Brake Valve ECP Manifold according to claim 13, wherein said redundant safety checking functions include stuck brake protection when a railcar car is operating with ECP cut-out and the rest of the train is operating with ECP in an operational mode.

17. A China Type 120 Brake Valve ECP Manifold according to claim 13, wherein said microprocessor further includes brake cylinder fill and vent control logic for controlling brake cylinder filling and venting rates.

18. A China Type 120 Brake Valve ECP Manifold according to claim 17, wherein said brake cylinder filling and venting rates are controlled by time cycling on/off control of said valve means by said control module.

19. A China Type 120 Brake Valve ECP Manifold according to claim 18, wherein said control module further includes the ability to modify brake application and release times.