BRAKE PIPE VENT VALVE FOR LOCOMOTIVE BRAKE SYSTEM
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United States of America Patent
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N/A
Issued Date -
Sep 17, 2009
app pub date -
Mar 11, 2008
filing date -
Mar 11, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present locomotive brake system includes a brake controller operable by an operator and a brake pipe vent valve. The brake controller includes an emergency output port which provides emergency pneumatic signal on the emergency output port when the brake controller is in an emergency position. The brake pipe vent valve includes a housing having brake pipe, emergency input and exhaust ports, and a first valve. The emergency output port is fluidly connected to the emergency input port. The first valve selectively connects the brake pipe port to the exhaust port when opened in response to an emergency signal on the brake pipe port and in response to an emergency signal on the emergency input port.
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