B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 15/52 (2006.01) B60T 7/10 (2006.01) B60T 13/66 (2006.01) B60T 15/16 (2006.01) B60T 17/22 (2006.01)
Patent
CA 2381851
A release valve apparatus for use on freight railcars equipped with ECP brake equipment comprises a spool valve assembly and a control valve assembly. The control valve assembly features a lever with which a railroad worker can affect the pressure in a brake cylinder to which the spool valve assembly is connected. By operating the lever after a brake application, a worker can not only manually release the pressure from the brake cylinder but also lock the brake cylinder in a release state until the spool valve assembly is reset. The spool valve assembly can be reset merely by commanding the ECP brake equipment to depressurize a control chamber underneath the spool valve assembly, in response to which the ECP application and release valves are again placed in communication with the brake cylinder. The lever can also be used to manually blow down the auxiliary and emergency reservoirs.
Macrae & Co.
Westinghouse Air Brake Technologies Corporation
LandOfFree
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