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. 29, 2007
Filed:
Jan. 20, 2005
Yutaka Inomoto, Wako, JP;
Kosuke Tsunashima, Wako, JP;
Yutaka Inomoto, Wako, JP;
Kosuke Tsunashima, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A valve system of an internal combustion engine mounted on a vehicle comprises a valve characteristic varying mechanism for controlling valve operation characteristics of an engine valve, and an electric motor of the valve characteristic varying mechanism is disposed in the exterior of a valve chamber defined by the cylinder head. The cylinder head is provided with a duct, for guiding a running airflow therethrough, between a combustion chamber and the valve chamber. The electric motor is laid out at a position which is adjacent to the valve chamber in the radial direction with respect to the cylinder axis and at which the running airflow having flowed in via an inlet portion and having passed through the duct collides on the electric motor.