Inventor
HWANG GYU-HAN
KR14 patents
Patents
14 patentsUS6877478B2Apr 12, 2005
Variable tumble flow-generating device of engine and manufacturing method of variable tumble flow-generating intake port
HYUNDAI MOTOR CO LTD17 citations88
US6823825B1Nov 30, 2004
Oil supply structure for an engine cylinder head
HYUNDAI MOTOR CO LTD15 citations83
US6758171B2Jul 6, 2004
Engine cooling system with two thermostats
HYUNDAI MOTOR CO LTD10 citations72
US9771890B2Sep 26, 2017
Oil passage for supplying oil
HYUNDAI MOTOR CO LTD4 citations71
US9399932B2Jul 26, 2016
Variable valve device that varies lift amount of valve
HYUNDAI MOTOR CO LTD2 citations62
US7007637B2Mar 7, 2006
Water jacket for cylinder head
HYUNDAI MOTOR CO LTD6 citations61
US6874450B2Apr 5, 2005
Engine cooling system
HYUNDAI MOTOR CO LTD6 citations61
US6948229B2Sep 27, 2005
Manufacturing method of variable tumble flow-generating intake port
HYUNDAI MOTOR CO LTD0 citations48
US9670801B2Jun 6, 2017
Cylinder deactivation engine
HYUNDAI MOTOR CO LTD0 citations45
US10526962B2Jan 7, 2020
Variable compression ratio apparatus
HYUNDAI MOTOR CO LTD0 citations41
US10087829B2Oct 2, 2018
Variable compression ratio device
HYUNDAI MOTOR CO LTD0 citations41
US9816409B2Nov 14, 2017
Variable valve lift apparatus
HYUNDAI MOTOR CO LTD0 citations41
US9556763B2Jan 31, 2017
Variable valve lift apparatus
HYUNDAI MOTOR CO LTD0 citations41
US9745873B2Aug 29, 2017
Multiple variable valve lift apparatus
HYUNDAI MOTOR CO LTD0 citations40