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. 03, 2015
Filed:
Sep. 21, 2012
Applicant:
Hino Motors, Ltd., Tokyo, JP;
Inventors:
Assignee:
Hino Motors, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 13/06 (2006.01); F02D 17/02 (2006.01); F02D 41/00 (2006.01); F02D 41/04 (2006.01); F02D 13/00 (2006.01);
U.S. Cl.
CPC ...
F02D 17/02 (2013.01); F02D 13/06 (2013.01); F02D 41/0087 (2013.01); F02D 41/042 (2013.01); F02D 41/0005 (2013.01); Y02T 10/42 (2013.01); Y02T 10/18 (2013.01);
Abstract
An engine control system controls an internal combustion engine so that some of a plurality of cylinders in a multi-cylinder internal combustion engine are made to rest and reduced-cylinder operation takes place. Each cylinder comprises a piston, an intake valve and an exhaust valve. In a resting cylinder during reduced-cylinder operation, when the piston moves downwards, the engine control system opens both the intake valve and the exhaust valve, and when the piston moves upwards, the engine control system opens the intake valve and closes the exhaust valve.