Isochoric heat addition engines and methods
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United States of America Patent
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Feb 5, 2019
Grant Date -
Oct 27, 2016
app pub date -
Jun 29, 2016
filing date -
Aug 4, 2008
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Abstract
Engines and methods execute a high efficiency hybrid cycle, which is implemented in a volume within an engine. The cycle includes isochoric heat addition and over-expansion of the volume within the engine, wherein the volume is reduced in a compression portion of the cycle from a first quantity to a second quantity, the volume is held substantially constant at the second quantity during a heat addition portion of the cycle, and the volume is increased in an expansion portion of the cycle to a third quantity, the third quantity being larger than the first quantity.
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