Fuel vapor feed controlling apparatus for a lean burn type internal combustion engine
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United States of America Patent
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Jul 10, 2001
Grant Date -
N/A
app pub date -
Feb 23, 2000
filing date -
Dec 16, 1996
priority date (Note) -
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Abstract
A fuel vapor feed controlling apparatus of a lean burn internal combustion engine suppresses either one of a rich misfire or a surge when fuel vapor is fed into the engine. A purge controlling unit controls an amount of fuel vapor fed from a fuel reservoir to the engine in response to an operational condition of the engine. A first compensation unit compensates the amount of fuel vapor such that an engine revolution speed of the engine may be identical with a target revolution speed. The purge controlling unit performs a purge control based on a compensation value compensated by the first compensation unit.
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