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.

Date of Patent:
Dec. 27, 2016

Filed:

Dec. 02, 2014
Applicant:

Hyundai Motor Company, Seoul, KR;

Inventors:

Jae Hee Jeon, Hwaseong-si, KR;

Seock Joong Yoon, Hanam-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L 9/02 (2006.01); F01L 1/24 (2006.01); F01L 1/18 (2006.01); F01L 1/047 (2006.01);
U.S. Cl.
CPC ...
F01L 1/2411 (2013.01); F01L 1/047 (2013.01); F01L 1/185 (2013.01);
Abstract

A variable valve lift apparatus includes a rocker arm having a rocker arm shaft penetrating therethrough. One portion of the rocker arm is supported by a cam shaft and another portion thereof contacts an upper end of an intake valve or an exhaust valve to open and close the intake valve or the exhaust valve. An actuator is disposed at an end of the rocker arm and protrudes toward the intake valve or the exhaust valve depending on an oil pressure applied to change an opening of the intake valve or the exhaust valve. A control valve applies the oil pressure to the actuator to maintain an opened state of the intake valve or the exhaust valve when the intake valve or the exhaust valve is closed.


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