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. 03, 2013
Filed:
Nov. 05, 2008
Applicant:
Daisuke Akihisa, Susono, JP;
Inventor:
Daisuke Akihisa, Susono, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 75/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an internal combustion engine, a variable compression ratio mechanism able to change a mechanical compression ratio and a variable valve timing mechanism able to change a closing timing of an intake valve are provided. When a load is higher than a predetermined load, an amount of intake air inside a combustion chamber is controlled by controlling the closing timing of the intake valve, while when the engine load is lower than the predetermined load, the amount of intake air inside the combustion chamber is controlled by controlling both the closing timing of the intake valve and the opening degree of the throttle valve.