Internal combustion engine
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United States of America Patent
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Feb 15, 2011
Grant Date -
Sep 2, 2010
app pub date -
Aug 3, 2006
filing date -
Aug 8, 2005
priority date (Note) -
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Abstract
An internal combustion engine having a plurality of banks; each having a cylinder provided to said banks comprising: an intake valve provided between said cylinder and an intake manifold a camshaft opening and closing said intake valve by means of mechanical power of said internal combustion engine; and a changing unit changing, according to an operating state of said internal combustion engine a phase angle of said camshaft said phase angle corresponding to a closing timing of said intake valve said banks differing from each other in most retarded phase angle changed by said changing unit.
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