Interstage valve in double piston cycle engine
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United States of America Patent
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Nov 19, 2013
Grant Date -
Jul 29, 2010
app pub date -
Jan 25, 2010
filing date -
Jan 24, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An interstage valve for fluidly coupling two chambers of a double-piston engine is disclosed. The interstage valve may include a main valve body, a seal, and an electric coil. When closed, the seal is coupled to the main valve body as a result of electromagnetic forces generated by the electrical coil. The interstage valve is opened when the pressure differential between the engine chambers exceeds the electromagnetic forces. As the interstage valve opens, the electromagnetic forces diminish. The electromagnetic valve moves from the open state to the closed state when the pressure differential reverses. As the seal moves toward the main valve body, the electromagnetic forces increase, coupling the seal to the main valve body.
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