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:
Mar. 25, 2008
Filed:
Mar. 24, 2006
Götz Brachert, Stuttgart, DE;
Rüdiger Herweg, Esslingen, DE;
Kai Kanning, Stuttgart, DE;
Matthias Pfau, Ludwigsburg, DE;
Jochen Schäflein, Stuttgart, DE;
Hans-jürgen Weimann, Oppenweiler, DE;
Götz Brachert, Stuttgart, DE;
Rüdiger Herweg, Esslingen, DE;
Kai Kanning, Stuttgart, DE;
Matthias Pfau, Ludwigsburg, DE;
Jochen Schäflein, Stuttgart, DE;
Hans-Jürgen Weimann, Oppenweiler, DE;
Daimler Chrysler AG, Stuttgart, DE;
Abstract
In a method for operating an internal combustion engine in which the angular locations where the fuel/air mix combustions takes place can be controlled by an adjustment of the inlet and outlet valve timing, the timing of at least one of the intake and exhaust valve opening phases is shifted depending on the engine speed so as to reduce engine emissions.