Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Jochen Schäflein0
Rüdiger Herweg0
Gots Brachert0
Hans-Jürgen Weimann0
Matthias Pfau0
Date of Patent
March 25, 2008
0Patent Application Number
114111960
Date Filed
April 25, 2006
0Patent Primary Examiner
Patent 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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