Controlling engine operation with a first and second fuel
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United States of America Patent
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Aug 12, 2008
Grant Date -
Nov 8, 2007
app pub date -
Jun 4, 2007
filing date -
May 8, 2006
priority date (Note) -
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Abstract
A method of operating an internal combustion engine including at least a combustion chamber having a piston disposed therein, the method comprising during a first number of cycles after start-up of the engine, supplying at least a first fuel to the combustion chamber, and combusting said first fuel and during a second number of cycles after said first number of cycles, supplying said first fuel and a second fuel to the combustion chamber to form a substantially homogeneous mixture, and compressing said mixture with said piston to cause auto-ignition of said mixture.
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