Doosan Infracore Co., Ltd.

Hd Hyundai Infracore Co., Ltd.

Wook Jung

Duk Sang Kim

Jin Hwan Yu

Jayun Cho

Dockoon Yoo

Youngdeok Han

Chung Min Kim

Taesub Kim

Younghoon Lee

Jongwook Byun

Jungho Kim

Dongmyung Kang

Hyoungmin Han

Dae Sung Han

Jong Mo Ahn

Doc Koon Yoo

Jinhwan Yu

Jongyoon Lee

Yeongchu Kim

Kyungsoo Min

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.

Valve control apparatus for engine

Disclosed is a combustion chamber of a diesel engine provided with a bowl having a concave shape so that fuel injected from an injector creates a swirl or squishing flow to be mixed with air, and the combustion chamber of the diesel engine includes: a pip protruding from a center of a lower surface of the bowl toward the injector; a lip part protruding from a side surface of the bowl toward the injector; and a main combustion chamber provided on a lower portion of the lip part and a sub combustion chamber provided on an upper portion of the lip part, with the lip part interposed therebetween, in which a surface of the sub combustion chamber is formed in a flat shape or a concave bowl shape to have a depth of the sub combustion chamber of 0.8 mm or lower.

Combustion chamber of direct injection diesel engine for reducing the NOx

Growing community of inventors

Incheon, South Korea

Wook Jung