Intake and exhaust chambers
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United States of America Patent
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Jul 1, 2014
Grant Date -
Dec 5, 2013
app pub date -
May 30, 2012
filing date -
May 30, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
An engine has a stationary first body portion with one or more surfaces that define a portion of a fluid flow path through the engine. The stationary first body portion has a substantially cylindrical outer surface. A first piston assembly is configured to reciprocate relative to the stationary first body portion and to accommodate one or more second piston assemblies reciprocating inside and relative to the first piston assembly. The first piston assembly has an extension portion. The extension portion has a substantially cylindrical inner surface that defines a space to receive the stationary first body portion. One or more sealing elements are between the substantially cylindrical outer surface of the stationary first body portion and the extension portion of the first piston assembly.
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