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. 25, 2007
Filed:
Dec. 29, 2006
Dae Sung Kim, Hwaseong, KR;
Wootae Kim, Hwaseong, KR;
Back Sik Kim, Hwaseong, KR;
Hyung Ick Kim, Gunpo, KR;
IN Gee Suh, Yongin, KR;
Dong Hee Han, Seoul, KR;
Dae Sung Kim, Hwaseong, KR;
WooTae Kim, Hwaseong, KR;
Back Sik Kim, Hwaseong, KR;
Hyung Ick Kim, Gunpo, KR;
In Gee Suh, Yongin, KR;
Dong Hee Han, Seoul, KR;
Hyundai Motor Company, Seoul, KR;
Abstract
A continuous variable valve lift (CVVL) apparatus adjusting a valve lift, duration of valve opening and closing, and a valve timing includes a cam rotating by a cam shaft, a first shaft having a first radius, a second shaft having a second radius smaller than the first radius and coupled in the first shaft such that the first and second shafts are non-concentric, a roller moving upward and downward by a rotation of the cam and connected to the first shaft to be moved on the basis of a position of the first shaft, a first arm rotatably connected to the second shaft to be moved by the roller, and a second arm rotatably secured to a third shaft to open and close the valve by an operation of the first arm.