Hyundai Motor Company

Kia Motors Corporation

Seong Hyuk Kang

Woo Tae Kim

Myungsik Choi

Wootae Kim

Won Gyu Kim

Hong Wook Lee

Myung Rae Cho

Hosung Cho

Taewon Park

Eui Chul Choi

Jin Gyu Yang

Sung Han Kang

Seung Woo Lee

Dae Sung Kim

In Sang Ryu

Han Sang Kim

Nahm Roh Joo

Su Ho Lee

Duk Jin Park

Kwang Min Won

Ha Dong Bong

Jinwoo Yang

Yong Yun Hwang

Hyun Il Park

Sang Kyu Kang

Gue Hyun Jung

Jin Yong Kong

Seung Yeon Yang

Youn Soo Im

Ja Un Ku

Teok Hyeong Cho

A variable intake system includes a pair of surge tanks connected in a communicating manner to a main intake pipe through a low speed communication pipe and a high speed communication pipe, a middle speed communication pipe for connecting the pair of surge tanks, and a noise reducing member integrally provided at the middle speed communication pipe to reduce noise.

Variable intake system

A variable valve lift apparatus may include a variable valve lift housing, a master piston which is slidably disposed in the variable valve lift housing and contacts a cam, a slave piston which is slidably disposed in the variable valve lift housing, defines an oil chamber with the master piston therebetween, and opens a valve connected to the slave piston according to reciprocative motion of the master piston, and a lift control portion which supplies oil to the oil chamber or exhausts oil in the oil chamber selectively to control a relative distance between the master piston and the slave piston.

Variable valve lift apparatus

An electro-hydraulic variable valve lift apparatus may include a housing, a master portion which is slidably disposed to the housing and contacts a cam, a first oil supply portion which supplies hydraulic pressure, a slave piston which is slidably disposed within the housing and defines an oil chamber with the master portion, a latching portion which is supplied the hydraulic pressure from the first oil supply portion and selectively connects the slave piston and the master portion, a second oil supply portion which selectively supplies hydraulic pressure to the oil chamber so as to control relative distances between the master portion and the slave piston when the slave piston is disengaged with the master portion, and a stepped portion formed to the housing between the master portion and the slave piston to elastically support the master portion.

Electro-hydraulic variable valve lift apparatus

The present invention relates to an intake manifold for a vehicle and comprises tanks for stabilizing intaken air introduced from a throttle body; a plurality of zip tubes diverged from the tanks; a plurality of runners connected to the zip tubes and communicated with respective cylinders; and a adjustment apparatus provided at one side of the zip tubes and the runners for varying the diameter of the zip tube and the diameter of the runner according to an engine operation range. Due to the above structure, the diameter of the zip tube and the diameter of the runner can be varied continuously within the overall operating range of an engine by the adjustment apparatus. Hence, the performance of the engine can be enhanced.

Intake manifold for vehicle

An impulse charger for motor vehicle engines include impulse valves driven using driving force continuously generated by a driving apparatus so as to be instantaneously opened and closed at a high speed by a link unit in which link members are interconnected, and in which the impulse valves for all cylinders are simultaneously driven. Thus, the impulse charger provides simple drive control, reduction in necessary components, and an efficient mounting space, guarantees easy manufacturing and mounting at a low cost, and prevents noise from being generated when the impulse valves are operated.

Impulse charger for motor vehicle engines

Growing community of inventors

Hwaseong-si, South Korea

Seong Hyuk Kang