Device for directly measuring on a piston the effective volumetric ratio of a variable compression ratio engine
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United States of America Patent
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Nov 29, 2011
Grant Date -
May 6, 2010
app pub date -
Apr 16, 2008
filing date -
Apr 16, 2007
priority date (Note) -
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Abstract
A device for measuring the effective volumetric ratio of at least one cylinder in a variable compression-ratio engine, includes at least one target passage sensor (91) attached on the cylinder casing (100) and detecting the passage of at least one target (92) connected to the piston (2) of the engine, the target passage sensor interacting with at least one angular position sensor of the crankshaft (93) of the engine, and one calculator (94).
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