Dual Combustion Mode Engine
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United States of America Patent
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Jul 10, 2007
Grant Date -
N/A
app pub date -
Feb 17, 2006
filing date -
Feb 17, 2006
priority date (Note) -
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Abstract
An internal combustion engine is disclosed in which at least one cylinder is adapted to run in homogeneous-charge compression-ignition (HCCI) combustion mode and at least one cylinder is adapted to run in spark-ignition (SI) combustion mode with the HCCI cylinder having a compression ratio at least 2 ratios higher than the SI cylinder. The intakes and exhausts of the HCCI and SI cylinders are separated with a throttle valve disposed in each intake and exhaust aftertreatment devices tailored to each combustion mode disposed in the exhausts.
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