Air spring system for an internal combustion engine
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United States of America Patent
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Aug 26, 2014
Grant Date -
Oct 24, 2013
app pub date -
May 22, 2013
filing date -
Jan 20, 2009
priority date (Note) -
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Abstract
A method of supplying air to an air spring biasing one of an intake valve and an exhaust valve of an internal combustion engine to a closed position is disclosed. The method includes: driving an air compressor with a motor prior to starting of the internal combustion engine, the air compressor fluidly communicating with the air spring to supply air to the air spring; determining that a predetermined condition has been reached; starting the engine once the predetermined condition has been reached; and driving the air compressor with a rotating shaft of the engine once the engine has started.
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