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:
Apr. 21, 2009
Filed:
Nov. 20, 2006
Takashi Hamada, Kariya, JP;
Takashi Hamada, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Denso Corporation, Kariya, JP;
Abstract
A control apparatus for an internal combustion engine including a plurality of cylinders and a changing mechanism the changes a timing at which an intake valve provided for each of the cylinders closes, comprising: a control portion that controls the changing mechanism so that the intake valve closes at a timing within a predetermined range from a bottom dead center; and a detection portion that detects at least one of an air-fuel ratio of each of the cylinders and a value corresponding to the air-fuel ratio when the changing mechanism is controlled so that the intake valve closes at the timing within the predetermined range from the bottom dead center.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile