Pneumatic emergency brake assurance module
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United States of America Patent
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Feb 16, 2010
Grant Date -
Mar 5, 2009
app pub date -
Aug 16, 2006
filing date -
Sep 16, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
A pneumatic emergency brake assurance module comprises a high capacity transfer valve connected in a first position to the output of the variable load relay valve and in a second position connected to a source of emergency braking air pressure. A timing reservoir is in communication with the pilot port of the high capacity transfer valve. A check valve/choke circuit provides parallel connections between a double check valve and the output of the variable load relay valve such that flow from the variable load relay valve passes through a charging choke and opposite flow to the variable load relay valves passes through a dissipation choke.
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