Engine with liquid piston
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United States of America Patent
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-
Nov 10, 2009
Grant Date -
Dec 15, 2005
app pub date -
Aug 23, 2005
filing date -
Dec 19, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An engine comprises a liquid piston disposed within a chamber of an engine body. The chamber is defined by at least one wall. The liquid piston has one or more free surfaces that are not in contact with the chamber wall. A laser directly heats the free surface of the liquid piston. A gas spring is disposed within the chamber adjacent the free surface of the liquid piston and within the propagation path of the laser energy. The engine also includes a spring mechanism. The spring mechanism is positioned within the housing to exert pressure on another surface of the liquid piston.
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