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:
May. 14, 2019
Filed:
May. 31, 2016
Applicant:
Man Truck & Bus Ag, München, DE;
Inventor:
Franz Werner Prümm, Koblenz, DE;
Assignee:
MAN Truck & Bus AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 41/08 (2006.01); F02D 41/14 (2006.01); F02D 37/02 (2006.01); F01N 1/00 (2006.01); F01N 3/10 (2006.01); F02D 41/00 (2006.01); F02P 15/10 (2006.01); F02P 9/00 (2006.01); F02P 23/04 (2006.01);
U.S. Cl.
CPC ...
F02D 41/08 (2013.01); F01N 1/00 (2013.01); F01N 3/101 (2013.01); F02D 37/02 (2013.01); F02D 41/0002 (2013.01); F02D 41/1441 (2013.01); F02D 41/1475 (2013.01); F02P 15/10 (2013.01); F02D 41/0007 (2013.01); F02D 2200/0404 (2013.01); F02D 2200/1015 (2013.01); F02D 2250/08 (2013.01); F02D 2250/22 (2013.01); F02P 9/002 (2013.01); F02P 23/04 (2013.01); Y02T 10/22 (2013.01);
Abstract
An operating method for an apparatus, having an internal combustion engine that can be operated in a lean mode and a stoichiometric mode, a crankcase, at least one combustion chamber and preferably a throttle element via which charge air can be fed from a charge air cooler to the combustion chamber internal combustion engine is switched to a lean mode during idling and is operated in the lean mode, with the result that, in particular, the pressure difference between the crankcase and the combustion chamber is reduced.