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:
Jan. 21, 2020
Filed:
Oct. 29, 2015
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Hartmut Faust, Buehl, DE;
Thomas Winkler, Offenburg, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A method for operating a multi-cylinder internal combustion engine in which every active cylinder operates in a four-stroke mode and every deactivated cylinder filled with an approximately completed gas filling is compressed and expanded during the four-stroke operation of the activated cylinder. In a method in which excitations of a crankshaft speed are minimized, a limited number of even-numbered cylinders of a multi-cylinder internal combustion engine () having a maximum even number of cylinders () are deactivated sequentially, the limited even number of cylinders being smaller than the maximum even number of cylinders () of the multi-cylinder internal combustion engine ().