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:
Sep. 02, 2008
Filed:
Apr. 13, 2006
Takahumi Mizorogi, Saitama, JP;
Masayuki Toyokawa, Saitama, JP;
Hidetaka Ozawa, Saitama, JP;
Hiroyuki Murase, Saitama, JP;
Takahumi Mizorogi, Saitama, JP;
Masayuki Toyokawa, Saitama, JP;
Hidetaka Ozawa, Saitama, JP;
Hiroyuki Murase, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A variable lift valve operating system for an internal combustion engine, including a variable lift mechanism capable of changing a lift amount of an engine valve in accordance with rotation of a control shaft rotatably supported in a cylinder head, and an actuator which has an electric motor and power transmission means interposed between the electric motor and the control shaft, and which is connected to the control shaft. The actuator is constructed to have an oilless structure without oil supply, thereby always stably and rotationally driving the control shaft.