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:
Jun. 08, 2010
Filed:
Apr. 14, 2005
Mikio Tanabe, Tokyo, JP;
Shinichi Murata, Tokyo, JP;
Masaru Mori, Tokyo, JP;
Yusuke Kido, Tokyo, JP;
Mikio Tanabe, Tokyo, JP;
Shinichi Murata, Tokyo, JP;
Masaru Mori, Tokyo, JP;
Yusuke Kido, Tokyo, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A valve mechanism for an internal combustion engine includes a first rocker arm () connected to an intake or exhaust valve and supported on a rocker shaft (), a second rocker arm () supported on the rocker shaft for being rotationally driven by a cam, a cylinder () formed on one of the first and second rocker arms () and a first piston () provided in the cylinder, a contacting projection () projecting on the other one of the first and second rocker arms, a return spring () for biasing the first piston in a direction in which the first piston contacts with the contacting projection, and a second piston () for displacing the first piston to a position at which the first piston does not contact with the contacting projection. The two pistons extend in parallel to each other when the first piston is at a non-contacting position.