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:
Dec. 15, 2009
Filed:
Jan. 13, 2005
Noriaki Fujii, Wako, JP;
Katsunori Nakamura, Wako, JP;
Akiyuki Yonekawa, Wako, JP;
Tomoya Fujimoto, Wako, JP;
Keiko Yoshida, Wako, JP;
Noriaki Fujii, Wako, JP;
Katsunori Nakamura, Wako, JP;
Akiyuki Yonekawa, Wako, JP;
Tomoya Fujimoto, Wako, JP;
Keiko Yoshida, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A rocker arm () is provided with a valve connecting portion () into which tappet screws () abutting against a pair of engine valves () are screwed so that their advance/retract positions can be adjusted, and the rocker arm () has a cam abutting portion () which abuts against a valve operating cam () and is interlocked and connected to the engine valves (). The rocker arm () turnably connects to one end of a first link arm () turnably supported at a fixed position of an engine body and to one end of a second link arm turnably supported by a displaceable movable support shaft (). The rocker arm () is formed so that the valve connecting portion () has a larger width in a direction along a rotating axis of the valve operating cam () than in the remaining part. This enables the lift amount of the engine valves to be continuously varied. It is also possible to reduce the size of the system, while ensuring follow-up ability of the opening/closing operations.