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:
Oct. 18, 2005
Filed:
Jul. 26, 2002
Hisao Sakai, Wako, JP;
Yasuo Shimizu, Wako, JP;
Toshihiro Yamaki, Wako, JP;
Hidetaka Ozawa, Wako, JP;
Hisao Sakai, Wako, JP;
Yasuo Shimizu, Wako, JP;
Toshihiro Yamaki, Wako, JP;
Hidetaka Ozawa, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A valve control apparatus for an internal combustion engine is provided which is capable of optimally setting the closing timing of an engine valve according to operating conditions of the engine while suppressing an increase in the inertial mass of the engine valve to the minimum, thereby attaining improvement of fuel economy, and realization of higher engine rotational speed and higher power output in a compatible fashion, and reducing costs and weight thereof. The valve control apparatus controls opening and closing operations of an engine valve. A cam-type valve actuating mechanism actuates the engine valve to open and close the engine valve, by a cam which is driven in synchronism with rotation of the engine. An actuator makes blocking engagement with the engine valve having been opened, to thereby hold the engine valve in an open state. An ECU controls operation of the actuator to thereby control closing timing of the engine valve.