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:
Apr. 25, 2006
Filed:
Mar. 02, 2005
Kaoru Eguchi, Tokyo, JP;
Masaru Nemoto, Yokohama, JP;
Yoshihiko Yamada, Fujisawa, JP;
Tamotsu Todo, Atsugi, JP;
Kaoru Eguchi, Tokyo, JP;
Masaru Nemoto, Yokohama, JP;
Yoshihiko Yamada, Fujisawa, JP;
Tamotsu Todo, Atsugi, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A rocker armis rocked with respect to a control shaftthrough a link armby rotation of a drive shaft. With this configuration, a rocking camis rocked with respect to the drive shaftthrough a link member. A valve lifteris pushed downward by rocking of the rocking cam. The control shaftis integrally provided with a control cam which is eccentric with respect to an axis of the control shaft. If the control cam is rotated, a rocking fulcrum position of the rocker armis changed, thereby varying a valve-lift amount. An eccentric bushis provided on an inner peripheral surface of the rocker armon an outer periphery side of the control cam. The eccentric bushmeshes with an inner peripheral gear formed on an inner periphery of the rocker armby an outer peripheral gear, and is coupled to the rocker arm. This coupled state is released by moving the eccentric bushin the axial direction. In this state, the eccentric bushis rotated by a predetermined amount with respect to the control cam and the rocker arm, thereby adjusting the valve-lift amount.