Reciprocating engine
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United States of America Patent
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-
Dec 16, 2008
Grant Date -
Apr 6, 2006
app pub date -
Mar 2, 2004
filing date -
Mar 3, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A reciprocating engine comprises: a piston ring; a piston ring which defines an annular gas chamber in cooperation with the piston ring and which is adjacent to the piston ring such that a pressure-receiving area of a side surface of a piston in the annular gas chamber becomes greater on a thrust side than on a counter-thrust side of the piston; and gas passages for allowing the annular gas chamber to communicate with the combustion chamber.
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