Variable valve gear for internal combustion engine
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United States of America Patent
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Jan 29, 2013
Grant Date -
May 13, 2010
app pub date -
Nov 9, 2009
filing date -
Nov 12, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Disclosed is a variable valve gear comprising a camshaft phase change mechanism, which variably controls a phase of an intake cam with respect to a crankshaft, and a variable valve lift mechanism, which changes an opening timing of an intake valve more than a closing timing and basically continuously varies a lift and an open period of the intake valve. The lift and the open period are set lest the intake valve interfere with a piston of an engine, with the phase controlled to be most advanced by the camshaft phase change mechanism and the lift controlled to be maximal by the variable valve lift mechanism.
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