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:
Oct. 17, 2017
Filed:
Sep. 24, 2015
Applicant:
Hyundai Motor Company, Seoul, KR;
Inventors:
Assignee:
HYUNDAI MOTOR COMPANY, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/14 (2006.01); F01L 1/24 (2006.01); F01L 1/047 (2006.01);
U.S. Cl.
CPC ...
F01L 1/24 (2013.01); F01L 1/047 (2013.01);
Abstract
A variable valve lift system may include a roller finger follower having an end connected with a valve and a roller mounted thereto. A hydraulic lash adjuster supports another end of the roller finger follower and has operating modes which are changed to a high lift mode or a low lift mode according to supplied hydraulic pressure to change a height of the hydraulic lash adjuster. A hydraulic pressure supplying portion supplies the hydraulic pressure to the hydraulic lash adjuster. A cam is mounted to a camshaft and contacts the roller of the roller finger follower. The cam has a first ramp and a second ramp formed thereon.