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. 16, 2004
Filed:
Jul. 29, 2002
Klaus Allmendinger, Bachhagel, DE;
Karlheinz Baier, Ostfildern, DE;
Hans-Hubert Hemberger, Notzingen, DE;
DaimlerChrysler AG, Stuttgart, DE;
Abstract
In a method for open-loop and closed-loop control of the number and sequence of strokes in the motive process of a reciprocating-piston internal combustion engine, in particular a reciprocating-piston internal combustion engine with direct injection, it being possible, in the case of leaner-than-stoichiometric combustion, for the residual oxygen not yet used for combustion to be used for further working strokes, and a gas exchange occurring only after the residual oxygen in the combustion chamber has been completely burned or the air ratio &lgr; in the combustion chamber has fallen below a lower limiting value &lgr; .