B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
B60T 17/04 (2006.01) B60T 15/18 (2006.01) B60T 15/36 (2006.01) B61H 11/00 (2006.01)
Patent
CA 2467350
A service portion of a rail pneumatic brake control valve which includes a piston responsive to pressure differential between brake pipe pressure at a brake pipe port and reservoir pressure at a reservoir port and a first valve controlled by the piston to determine pressure in a brake cylinder for a service application. A stability choke and check valve are connected in series between the brake pipe port and the reservoir port. The check valve permits flow from the brake pipe port to the reservoir port and prevents flow from the reservoir port to the brake pipe port independent of the piston.
Gayfer Robert P.
Wright Eric C.
Borden Ladner Gervais Llp
New York Air Brake Corporation
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