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. 30, 2006
Filed:
Jan. 18, 2002
Yasuo Shimizu, Wako, JP;
Toshihiro Yamaki, Wako, JP;
Hisao Sakai, Wako, JP;
Honda Giken Kogya Kabushiki Kaisha, Tokyo, JP;
Abstract
A valve operation controller for an internal combustion engine is provided for optimally setting a valve opening timing and a valve closing timing for an intake valve in accordance with an operating state of the internal combustion engine to improve the fuel efficiency and power of the internal combustion engine, eliminate fuel stagnation in the intake valve and sticking of the intake valve with its valve seat, and reduce the cost and weight. The valve operation controller controls open/close operations of exhaust valves (EV, EV) and first and second intake valves (IV, IV) arranged in one cylinder (). An electromagnetic valve operating mechanism () electromagnetically opens/closes the first intake valve (IV). A cam type valve operating mechanism () opens/closes the second intake valve (IV) with an intake cam () arranged on a cam shaft () driven in synchronism with rotation of the internal combustion engine (). The cam type valve operating mechanism () can generate a cylinder flowage within a combustion chamber of the cylinder (). An ECU () controls operations of the electromagnetic valve operating mechanism () and the cam type valve operating mechanism ().