Hyundai Motor Company

Kia Motors Corporation

Hyun Wook Ryu

Seok Jun Yoon

Eun Ho Lee

Byung Chul Lee

Hyo Jo Lee

Yonggyu Lee

Byung Ok Park

Seung Woo Ko

Hogyoun Kang

Min Kyoung Ryu

Sungmoon Cho

Sa Hoon Hong

Yoong Hwa Park

Jin Do Lee

Won Hyuk Koh

In Cheol Cheong

A cylinder head configured for dividing coolant introduced thereinto to a combustion chamber side and an exhaust manifold side to increase the amount of coolant introduced to the combustion chamber side, improving cooling performance, may include a head water jacket having a combustion chamber coolant inlet, through which coolant is introduced from a cylinder block to a combustion chamber side, and an exhaust coolant inlet, through which the coolant is introduced from the cylinder block to an exhaust manifold side, the combustion chamber coolant inlet and the exhaust coolant inlet being separated from each other such that the coolant introduced through the combustion chamber coolant inlet flows to the combustion chamber side in an expanded state.

Cylinder head

A coolant control valve includes a cam rotating by rotational force; a pivot arm disposed under the cam, one end of the pivot arm moving in an up and down direction by rotation of the cam; a valve installed at another end of the pivot arm and disposed outside an outer diameter of the cam, the valve moving as the pivot arm moves; and a pivot arm support hinge for supporting the pivot arm and enabling vertical movement of the pivot arm when the cam rotates.

Coolant control valve

An engine system includes a cylinder block and a cylinder head. A coolant control valve unit is engaged with the cylinder head to receive a coolant exhausted from the cylinder block and a coolant exhausted from the cylinder head. The coolant control valve unit controls a coolant to be supplied to a heater, a radiator, and an oil cooler and controls the coolant exhausted from the cylinder block. The coolant control valve unit receives the coolant from the cylinder head, supplies the coolant to the oil cooler, and controls the coolant distributed to the heater and the coolant exhausted from the cylinder block.

Engine system having coolant control valve

An exhaust manifold and diffuser integrated cylinder head, includes an exhaust manifold and a exhaust passage. The exhaust manifold is integrally formed with the cylinder head. The exhaust passage is integrally formed with the cylinder head such that a turbocharger is mounted on a joining part of exhaust ports of the exhaust manifold and exhaust gas discharged from the exhaust passage flows to the turbocharger.

Exhaust manifold and diffuser integrated cylinder head

Growing community of inventors

Hwaseong-si, South Korea

Hyun Wook Ryu