Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Clifford Carlson0
John Brevick0
Date of Patent
July 10, 2007
0Patent Application Number
112762100
Date Filed
February 17, 2006
0Patent Primary Examiner
Patent 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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