Method of torque control for an engine with valves that may be deactivated
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United States of America Patent
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May 12, 2009
Grant Date -
Jun 19, 2008
app pub date -
Jan 18, 2008
filing date -
Mar 19, 2004
priority date (Note) -
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Abstract
A system for operating an internal combustion engine with electromechanical valves, the system comprising of a cylinder with at least an electromechanical intake valve and at least an mechanically actuated exhaust valve that can be controlled to adjust valve opening and closing events relative to a crankshaft location; and a controller to adjust said electromechanical valve timing and said mechanically actuated valve timing.
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