Multi-stroke cylinder operation in an internal combustion engine
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United States of America Patent
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Jul 22, 2008
Issued Date -
N/A
app pub date -
Oct 26, 2007
filing date -
Mar 19, 2004
priority date (Note) -
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Abstract
A method for starting an internal combustion engine of a hybrid-electric vehicle having a controller, the engine having a plurality of cylinders, each with at least an intake and exhaust valve, each of which may be held in a position for a cycle of a cylinder, the method comprising of deactivating a plurality of cylinders in said engine in response to a signal from the controller of the hybrid-electric vehicle by mechanically deactivating valves in each cylinder of the engine, the deactivation in response to a request from the controller of the hybrid-electric vehicle and to reduce a number of operating valves in each cylinder of the engine.
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