Method for operation of an internal combustion engine running on hydrogen
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United States of America Patent
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Jan 27, 2009
Grant Date -
Jan 5, 2006
app pub date -
Sep 14, 2005
filing date -
May 14, 2003
priority date (Note) -
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Abstract
A method is provided for operating a bivalent internal combustion engine, which may run lean with using a fuel with wide inflammability limits, such as hydrogen, whereby a first lean region close to the stoichiometric air ratio and a second lean region, adjacent to the first in the direction of greater λ valve are defined. The operation in the first lean region is skipped such that operation occurs either in the second lean region or at an approximately stoichiometric air ratio.
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