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:
Oct. 07, 2008
Filed:
Sep. 02, 2004
Goetz Brachert, Stuttgart, DE;
Ruediger Herweg, Esslingen, DE;
Kai Kanning, Stuttgart, DE;
Matthias Pfau, Ludwigsburg, DE;
Jochen Schaeflein, Stuttgart, DE;
Hans-juergen Weimann, Oppenweiler, DE;
Goetz Brachert, Stuttgart, DE;
Ruediger Herweg, Esslingen, DE;
Kai Kanning, Stuttgart, DE;
Matthias Pfau, Ludwigsburg, DE;
Jochen Schaeflein, Stuttgart, DE;
Hans-Juergen Weimann, Oppenweiler, DE;
Daimler AG, Stuttgart, DE;
Abstract
A method for operating a four stroke internal combustion engine in which the combustion position can be set/controlled/corrected. The phase position of intake and/or exhaust phase is shifted for this purpose. Compression ignition takes place at part-load, and spark ignition takes place at full load. In the event of a load change in the part-lead range, the theoretical shift in the combustion position is compensated by the shift in phase position of the intake and/or exhaust phase.