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:
Jan. 01, 2019
Filed:
Dec. 08, 2016
Applicant:
Hyundai Motor Company, Seoul, KR;
Inventors:
Donghoon Seok, Yongin-si, KR;
Jaechun Kim, Hwaseong-si, KR;
Assignee:
Hyundai Motor Company, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 1/34 (2006.01); F01L 13/00 (2006.01); F02D 13/02 (2006.01); F01L 1/18 (2006.01); F01L 1/24 (2006.01); F01L 1/46 (2006.01);
U.S. Cl.
CPC ...
F01L 13/0047 (2013.01); F01L 1/185 (2013.01); F01L 13/0036 (2013.01); F02D 13/0207 (2013.01); F02D 13/0226 (2013.01); F01L 1/2405 (2013.01); F01L 2001/186 (2013.01); F01L 2001/467 (2013.01); F01L 2105/00 (2013.01);
Abstract
A variable valve duration apparatus may include a first cam rotating with a camshaft; a second cam rotating with the camshaft; a first operation device that is operated by the first cam to generate a valve lift; a second operation device that is operated by the second cam to generate the valve lift; and a controller controlling the first operation device or the second operation device to generate the valve lift according to an operation state of an engine.