Staging valve arrangement and valve for use therein
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United States of America Patent
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Jun 3, 2014
Grant Date -
Oct 7, 2010
app pub date -
Mar 29, 2010
filing date -
Apr 2, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A staging valve arrangement is described that comprises an arrangement of electrically driven staging valves that are located, in use, in the high temperature core zone of an engine. Each staging valve may comprise a housing having an inlet, a pilot flow outlet and a mains flow outlet, a valve member movable between a closed position in which the mains flow outlet is closed and an open position in which the mains flow outlet is open, a motor operable to drive the valve member for movement, and a cooling arrangement.
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