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. 10, 2015
Filed:
Jul. 21, 2014
Hyundai Motor Company, Seoul, KR;
Sangyun Kim, Hwaseong-si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
Abstract
A variable valve lift apparatus for changing a lift of an intake or exhaust valve in at least two stages may include a lever body, a piston, a cylinder, a hydraulic pressure chamber, an active portion, a hinge portion, a roller, a rotation shaft, a guide slot, a hydraulic pressure supply portion, and an elastic member, in which the lever body may make a lever motion at an end with the intake valve or the exhaust valve connected thereto, the piston may make reciprocal motion in the cylinder, the rotation shaft may pass through the hinge portion and the roller and be a rotation center of the roller, moving together with the roller, the hydraulic pressure supply portion may supply hydraulic pressure to the hydraulic pressure chamber for moving the piston, and the elastic member may return the piston if the hydraulic pressure being supplied to the hydraulic pressure chamber is removed.