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. 24, 2016
Filed:
May. 14, 2012
Applicants:
Noriyuki Takada, Susono, JP;
Shinobu Ishiyama, Numazu, JP;
Takashi Ogawa, Susono, JP;
Inventors:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/34 (2006.01); F02D 13/02 (2006.01); F01L 1/26 (2006.01); F01N 3/20 (2006.01); F01N 3/08 (2006.01); F02D 41/02 (2006.01); F02D 41/14 (2006.01); F02D 41/00 (2006.01); F02D 35/02 (2006.01);
U.S. Cl.
CPC ...
F02D 13/0226 (2013.01); F01L 1/267 (2013.01); F01N 3/2066 (2013.01); F02D 13/0234 (2013.01); F01N 3/0814 (2013.01); F01N 2430/06 (2013.01); F01N 2430/10 (2013.01); F01N 2900/08 (2013.01); F01N 2900/1614 (2013.01); F02D 13/0257 (2013.01); F02D 13/0273 (2013.01); F02D 35/023 (2013.01); F02D 41/0002 (2013.01); F02D 41/0275 (2013.01); F02D 41/1475 (2013.01); F02D 2041/001 (2013.01); F02D 2200/0806 (2013.01); Y02T 10/18 (2013.01);
Abstract
A control device for an internal combustion engine is provided with: a variable valve driving mechanism capable of changing a working angle of an intake valve while keeping a maximum magnitude of lift and opening timing constant; a reduction catalyst which absorbs nitrogen oxide in exhaust during lean combustion and reduces the nitrogen oxide absorbed during rich combustion; and a control unit changing, according to a load on the internal combustion engine, an amount of advance of closing of the intake valve at the time of switching to rich combustion.