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. 27, 2015
Filed:
Dec. 31, 2013
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Young Kyu Oh, Whasung-Si, KR;
Chulho Yu, Whasung-Si, KR;
Dongheon Park, Whasung-Si, KR;
Yoonho Cho, Whasung-Si, KR;
Il Joong Hwang, Whasung-Si, KR;
Dong Hoon Seok, Whasung-Si, KR;
HYUNDAI MOTOR COMPANY, Seoul, KR;
KIA MOTORS CORPORATION, Seoul, KR;
Abstract
An engine having a variable valve timing mechanism may include a camshaft having a cam formed thereon for moving an intake or exhaust valve, a variable rotation unit disposed on the same axis with the camshaft to rotate the camshaft to have a retard angle chamber and an advance angle chamber for controlling a retard angle and an advance angle of the camshaft, a variable valve bolt having a fastening portion for fastening the variable rotation unit to the camshaft, and an oil control valve for making selective supply of hydraulic oil to the retard angle chamber and the advance angle chamber, and a valve controller disposed on an outer side of the variable rotation unit for controlling the oil control valve in the variable valve bolt.