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:
Nov. 23, 1999
Filed:
Aug. 07, 1998
Seinosuke Hara, Kanagawa, JP;
Yoshihiko Yamada, Kanagawa, JP;
Keisuke Takeda, Kanagawa, JP;
Tsutomu Hibi, Kanagawa, JP;
Akira Ohnuki, Kanagawa, JP;
Shunichi Aoyama, Kanagawa, JP;
Makoto Nakamura, Kanagawa, JP;
Shinichi Takemura, Kanagawa, JP;
Tetsuro Goto, Kanagawa, JP;
Katsuya Moteki, Tokyo, JP;
Tsuneyasu Nohara, Kanagawa, JP;
Unisia Jecs Corporation, Atsugi, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A variable valve actuation (VVA) apparatus comprises an eccentric rotary (ER) cam fixed to a driving shaft for rotation therewith, a pivotal valve operating (VO) cam, a rocker arm having a first arm and a second arm, a control rod having an eccentric control cam, and a crank arm. The eccentric control cam supports the rocker arm for pivotal motion. The crank arm interconnects the ER cam and the first arm of the rocker arm. A link interconnects the second arm of the rocker arm and the VO cam.