Locomotive air/vacuum control system
AssigneeNew York Air Brake Corporation
InventorsRobert Carter, Brian Cameron, Vincent S. Guarrera, Jr., John Reynolds, Jon Marra
Life of this patent
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Abstract
The present locomotive brake control system includes a vacuum relay valve responsive to air brake apply and release signals on the air brake pipe to provide vacuum brake apply and release signals on a vacuum brake pipe. A locomotive brake controller is responsive to the brake apply and release signals on the air brake pipe to control the brake cylinder to apply and release the locomotive brakes in an air mode, and is responsive to the brake apply and release signals on the vacuum brake pipe sensed by a transducer to control the brake cylinder to apply and release the locomotive brakes in a vacuum mode.
Claims10
A locomotive brake control system comprising:
- an air brake pipe, a vacuum brake pipe, a pressurized air source, a vacuum source, and a brake cylinder for applying and releasing brakes on the locomotive;
- a vacuum relay valve responsive to brake apply and release signals on the air brake pipe to provide vacuum brake apply and release signals on the vacuum brake pipe;
- a vacuum brake pipe transducer sensing pressure in the vacuum brake pipe;
- a locomotive brake controller responsive to the brake apply and release signals on the air brake pipe to control the brake cylinder to apply and release the locomotive brakes in an air mode, and responsive to the brake apply and release signals from the vacuum brake pipe transducer to control the brake cylinder to apply and release the locomotive brakes in a vacuum mode.
Dependencies are inferred from the claim text.