Internal-combustion engines – Combustion chamber means having fuel injection only – Combustible mixture stratification means
Reexamination Certificate
2006-04-25
2008-03-25
Wolfe, Willis R. (Department: 3747)
Internal-combustion engines
Combustion chamber means having fuel injection only
Combustible mixture stratification means
C123S299000
Reexamination Certificate
active
07347180
ABSTRACT:
In a method for operating an internal combustion engine having a variable compression ratio either in a compression ignition or in a spark ignition operating mode depending on the engine operating point, a higher compression ratio is provided in the compression ignition mode than in the spark ignition mode so as to optimize the operation of the internal combustion engine at low and medium engine loads, and to reduce engine emissions.
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Brachert Gots
Herweg Rüdiger
Pfau Matthias
Schäflein Jochen
Weimann Hans-Jürgen
Bach Klaus J.
Daimler-Chrysler AG
Hoang Johnny H.
Wolfe Willis R.
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