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:
Dec. 31, 2013
Filed:
May. 04, 2012
Walter Huebner, Baldham, DE;
Udo Gerke, Schorndorf, DE;
Ulrich Spicher, Herxheim, DE;
Amin Velji, Karlsruhe, DE;
Michael Hoenl, Karlsruhe, DE;
Konstantinos Boulouchos, Zurich, CH;
Norbert Peters, Aachen, DE;
Olaf Roehl, Stuttgart, DE;
Christof Schulz, Cologne, DE;
Dennis Bensing, Bochum, DE;
Christian Laemmle, Russikon, CH;
Walter Huebner, Baldham, DE;
Udo Gerke, Schorndorf, DE;
Ulrich Spicher, Herxheim, DE;
Amin Velji, Karlsruhe, DE;
Michael Hoenl, Karlsruhe, DE;
Konstantinos Boulouchos, Zurich, CH;
Norbert Peters, Aachen, DE;
Olaf Roehl, Stuttgart, DE;
Christof Schulz, Cologne, DE;
Dennis Bensing, Bochum, DE;
Christian Laemmle, Russikon, CH;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A lean combustion method is provided for a four-stroke reciprocating internal combustion engine having a cylinder, in which a combustion chamber is delimited by a cylinder head and a piston is movable in a reciprocating manner, the piston being able to vary the volume of the combustion chamber. A fuel can be introduced directly into the combustion chamber, and at least one gas exchange inlet valve and one gas exchange outlet valve are provided for a gas exchange. An intermediate compression can be set in the combustion chamber at a gas exchange top dead center and a main compression can be set at an ignition top dead center.