The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2006
Filed:
Aug. 05, 2004
Applicants:
Thomas Betz, Stuttgart, DE;
Frank Duvinage, Kirchheim, DE;
Rüdiger Pfaff, Stuttgart, DE;
Heiko Sass, Tamm, DE;
Inventors:
Thomas Betz, Stuttgart, DE;
Frank Duvinage, Kirchheim, DE;
Rüdiger Pfaff, Stuttgart, DE;
Heiko Sass, Tamm, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 33/00 (2006.01); F02B 33/44 (2006.01); F02B 77/00 (2006.01); F02D 15/00 (2006.01); F02D 17/02 (2006.01); F02D 21/08 (2006.01); F02D 23/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an internal combustion engine having a plurality of cylinders, some of which can be deactivated during operation of the engine, the cylinders which can be deactivated during operation are configured specifically for high load engine operation and have a lower compression ratio ε than the rest of the cylinders, which are configured specifically for low load engine operation.