公开(公告)号：US20220220906A1

公开(公告)日：2022-07-14

申请号：US17416007

申请日：2019-12-09

Applicant: Doosan Infracore Co., Ltd.

Inventor： Jayun CHO ,  Youngdeok HAN ,  Dockoon YOO ,  Dongmyung KANG ,  Wook JUNG ,  Jungho KIM ,  Jongwook BYUN ,  Younghoon LEE ,  Taesub KIM

IPC: F02D13/02 ,  F01L1/08

Abstract: Provided is a valve control apparatus for an engine that opens and closes an exhaust valve and intake value of the engine while rotating in conjunction with a crankshaft of the engine, the valve control apparatus including an exhaust valve opening and closing device opening and closing the exhaust valve during a first exhaust valve opening period and an intake valve opening and closing device opening and closing the intake valve during a first intake valve opening period.