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:
Aug. 29, 2017
Filed:
May. 06, 2015
Hyundai Motor Company, Seoul, KR;
Gyu Han Hwang, Yongin-si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
Abstract
A multiple variable valve lift apparatus includes a camshaft. At least two cam portions are disposed on an exterior circumference of the camshaft and including a high cam and a normal cam. A cylinder deactivation device is configured to perform a lever motion by one of the high cam or the normal cam and to be operated by hydraulic pressure. At least two lift operating portions are disposed on the exterior circumference of the camshaft and moving the cam portions in an axial direction of the camshaft. An operation control portion selectively moves the operating portions in the axial direction of the camshaft. A guide rail is formed in a groove of an exterior circumference of the lift operating portions into which a pin is inserted. The guide rail guides the pin according to rotation of the camshaft and the operating portions.