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:
Apr. 02, 2019
Filed:
Mar. 14, 2017
Delphi Powertrain Systems Korea Ltd., Changwon-si, Gyeongsangnam-do, KR;
Pine Engineering Ltd., Changwon-si, Gyeongsangnam-do, KR;
KounYoung Jang, Changwon-si, KR;
Sung Dae Kim, Changwon-si, KR;
Sang Ho Lee, Changwon-si, KR;
Jae Young Kang, Changwon-si, KR;
Sung Hoon Baek, Gimhae-si, KR;
Soo Deok Ahn, Changwon-si, KR;
Delphi Powertrain Systems Korea Ltd., Changwon-si, KR;
Pine Engineering Ltd., Changwon-si, KR;
Abstract
Disclosed is an apparatus of adjusting valve timing for internal combustion engine configured to adjust at least one valve timing of an intake valve and an exhaustive valve by torque of a cam shaft and pressure of working fluid, and a method thereof. The method of the present disclosure is such that a rotor is embedded with a hydraulic control valve configured to operate a locking pin member, and the hydraulic control valve is so configured as to have various control positions in order to supply or discharge working fluid in response to engine emergency stop or start and normal engine operational state whereby locking and releasing operations are realized with accurate responsiveness and reliability due to smaller working fluid through a passage and an engine performance can be improved by adjusting the valve timing.