Engine shut-down for engine having adjustable valve timing
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United States of America Patent
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-
Jan 8, 2008
Grant Date -
Sep 14, 2006
app pub date -
Apr 21, 2006
filing date -
Mar 19, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A method for operating at least an intake and exhaust valve in a cylinder with a piston of an engine in a vehicle, comprising during conditions of an engine shut-down, maintaining at least one of the intake and exhaust valves in a closed position, and during conditions where said at least one valve is in said closed position operating with the other of the intake and exhaust valve open, then closing the other of the intake and exhaust valve, and then opening the other of the intake and exhaust valve to generate braking torque to slow the engine.
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