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:
Feb. 22, 2005
Filed:
Nov. 29, 2002
Holger Adler, Stuttgart, DE;
Nicholas Fekete, Fellbach, DE;
Michael Lenz, Fellbach, DE;
Thomas Liebscher, Fellbach, DE;
Ulrich Merten, Le-Echterdingen, DE;
Sven Pfoertsch, Munich, DE;
Norbert Ruzicka, Steinenbronn, DE;
Holger Adler, Stuttgart, DE;
Nicholas Fekete, Fellbach, DE;
Michael Lenz, Fellbach, DE;
Thomas Liebscher, Fellbach, DE;
Ulrich Merten, Le-Echterdingen, DE;
Sven Pfoertsch, Munich, DE;
Norbert Ruzicka, Steinenbronn, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a method for operating a diesel engine and a diesel engine, wherein engine emission control is provided by switching between a lean mode with superstoichiometric combustion air ratio λ>1 and a rich mode with substoichiometric combustion air ratio λ<1, the engine-torque fluctuations during the switching are determined and engine parameters which influence the engine torque, are adjusted so as to keep the engine torque constant during the switchover.