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:
Nov. 13, 2007
Filed:
Oct. 13, 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;
DaimlerChrysler A.G., Stuttgart, DE;
Abstract
A method retains exhaust gas in the combustion chamber of an internal combustion engine and compresses the exhaust gas during a charge change. A first fuel quantity is injected into the retained exhaust gas by direct fuel injection. A second fuel quantity is subsequently fed to the combustion chamber so that a homogeneous fuel/air mixture is obtained in the combustion chamber. An auto-ignition time of the fuel/air mixture which is formed from the first and second fuel quantities is set as a function of a quantity ratio of the first fuel quantity to the second fuel quantity.