公开(公告)号：US10550738B2

公开(公告)日：2020-02-04

申请号：US16169578

申请日：2018-10-24

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： You Sang Son ,  Ingee Suh ,  Kiyoung Kwon ,  In Sang Ryu ,  Kyoung Pyo Ha ,  Dongheon Park ,  Wootae Kim ,  Back Sik Kim ,  Seung Jae Lee

IPC: F01L13/00 ,  F01L1/352 ,  F01L1/053 ,  F01L1/08 ,  F01L1/34 ,  F01L1/047 ,  F02D41/00

Abstract: A continuously variable valve duration apparatus may include: a camshaft; a cam unit on which a cam is formed, and the camshaft inserted to the cam; an inner wheel for transmitting rotation of the camshaft to the cam unit; a wheel housing into which the inner wheel is rotatably inserted and movable perpendicular to the camshaft; a guide shaft on which a guide screw thread is formed and disposed perpendicular to the camshaft; a worm wheel formed with an inner screw thread for engaging with the guide screw thread, and the worm wheel disposed within the wheel housing; and a control shaft on which a control worm for engaging with the worm wheel is formed.

公开(公告)号：US10473000B2

公开(公告)日：2019-11-12

申请号：US15834755

申请日：2017-12-07

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Soo Hyung Woo ,  Heechang Oh ,  Seung Kook Han ,  Ju Hun Lee ,  Wootae Kim

IPC: F01L1/34 ,  F01L1/344 ,  F02D13/02 ,  F01L13/00 ,  F01L1/047 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18

Abstract: A multiple variable valve lift apparatus disposed at an intake part and an exhaust part of an engine includes: a moving cam rotating together with a camshaft, being movably disposed in an axial direction of the camshaft, and forming a plurality of cams for realizing valve lift to be different from each other and a cam guide protrusion; an operating unit selectively guiding the cam guide protrusion so as to move the moving cam in an axial direction of the camshaft; a controller controlling an operation of the operating unit; and a valve opening/closing unit opened/closed by contacting any one among the plurality of cams.

公开(公告)号：US09784177B2

公开(公告)日：2017-10-10

申请号：US14811602

申请日：2015-07-28

Applicant: Hyundai Motor Company

Inventor： Byong Young Choi ,  Soo Hyung Woo ,  Seung Kook Han ,  Byeong Seok Lee ,  Wootae Kim

IPC: F02B25/14 ,  F02M26/14 ,  F02M26/41 ,  F01N13/10 ,  F02B37/18 ,  F02M26/07 ,  F02M26/23 ,  F02M26/44 ,  F01N5/04

CPC classification number: F02B25/145 ,  F01N5/04 ,  F01N13/107 ,  F02B37/18 ,  F02M26/07 ,  F02M26/14 ,  F02M26/23 ,  F02M26/41 ,  F02M26/44

Abstract: An engine system may include main exhaust ports fluidly communicated with each combustion chamber, main exhaust valves opening and closing each main exhaust port, a main exhaust manifold connected with the main exhaust ports, scavenge exhaust ports fluidly communicated with the each combustion chamber, scavenge valves opening and closing the each scavenge exhaust port, a scavenge manifold connected with the scavenge exhaust ports, in which at least a part of an exhaust gas passing through the scavenge manifold is re-circulated to the combustion chamber to be burned.

公开(公告)号：US09347385B2

公开(公告)日：2016-05-24

申请号：US14472033

申请日：2014-08-28

Applicant: Hyundai Motor Company

Inventor： Han Sang Kim ,  Wootae Kim ,  Pil Sung Jang ,  Bonghoon Han

IPC: F02B75/32 ,  F02D15/02 ,  F02B75/04

CPC classification number: F02D15/02 ,  F02B75/044 ,  Y02T10/12

Abstract: Disclosed is a variable compression ratio device which changes a top dead center of a piston provided in an engine depending on a driving state of the engine. The variable compression ratio device may include: a lower piston reciprocally movable in a cylinder of the engine and connected with a connecting rod to rotate a crankshaft, an operation chamber, an upper piston disposed above the lower piston and partially inserted into the operation chamber, a push plate dividing the operation chamber into upper and lower spaces, a hydraulic pressure chamber which is the lower space, an elastic member provided in the upper space to push the push plate downward, a hydraulic pressure supply unit selectively supplying hydraulic pressure to the hydraulic pressure chamber, and a hydraulic pressure supply pathway connecting the hydraulic pressure supply unit and the hydraulic pressure chamber for supplying the hydraulic pressure.

Abstract translation: 公开了一种可变压缩比装置，其根据发动机的驱动状态改变设置在发动机中的活塞的上止点。 可变压缩比装置可以包括：下活塞，其可在发动机的气缸中往复运动并与连杆相连以旋转曲轴，操作室，设置在下活塞上方并部分插入到操作室中的上活塞， 将操作室分隔成上部和下部空间的推板，作为下部空间的液压室，设置在上部空间中以将推板向下推动的弹性构件，选择性地向液压供给液压的液压供给单元 以及连接液压供给单元和用于供给液压的液压室的液压供给路径。

公开(公告)号：US20150101562A1

公开(公告)日：2015-04-16

申请号：US14139756

申请日：2013-12-23

Applicant: Kia Motors Corporation ,  Hyundai Motor Company

Inventor： Myungsik CHOI ,  Gyu Han Hwang ,  Eun Ho Lee ,  Yoonsik Woo ,  Gee Wook Shin ,  Young Hong Kwak ,  Won Gyu Kim ,  Wootae Kim

IPC: F02D17/02

CPC classification number: F01L13/0005 ,  F01L1/143

Abstract: A CDA device includes: an outer body that moves up/down in contact with a cam and has an oil input hole at one side and latching pin chambers; an upper seat disposed inside the outer body; an inner body disposed slidably inside the outer body, has a latching pin hole, and is combined with a valve; a lost motion spring that elastically supports the outer body in a lost motion between the inner body and the outer body; latching pins that are slidably disposed in the latching pin chambers and inserted in the latching pin holes; and latching pin springs that push the latching pins into the latching pin hole, in which hydraulic pressure selectively transmitted from the oil input hole pushes the latching pins and the latching pins are separated from the latching pin holes.

Abstract translation: CDA装置包括：与凸轮接触地上下移动的外体，并且在一侧具有油输入孔和锁定销腔; 设置在外体内的上座; 内体，其可滑动地设置在所述外主体内，具有闭锁销孔，并与阀组合; 一种在内体和外体之间以空动的方式弹性支撑外体的空动弹簧; 闩锁销，其可滑动地设置在闩锁销腔中并插入到锁定销孔中; 以及闩锁销弹簧，其将闩锁销推入闩锁销孔，其中从油输入孔选择性地传送的液压压力推动闩锁销，并且闩锁销与闩锁销孔分离。