公开(公告)号：US20140238356A1

公开(公告)日：2014-08-28

申请号：US14098533

申请日：2013-12-06

Applicant: Hyundai Motor Company

Inventor： Yoonsik Woo ,  Jin Kook Kong ,  Ju Hun Lee ,  Eun Ho Lee ,  Dong Seok Lee ,  Soo Hyung Woo

IPC: F02B75/04

CPC classification number: F02B75/04 ,  F02B75/045

Abstract: Disclosed is a variable compression ratio control system configured to change a top dead center of a piston in an engine according to an operation state of the engine. The control system may include a motor provided as a power source, a control shaft coupled to the piston, wherein the control shaft changes the top dead center of the piston by a rotation of the control shaft, a driving shaft connected to the motor and to be rotated by the motor, an operation unit movable in a shaft direction of the driving shaft by a rotation of the driving shaft, and an operation link protruding from one portion of an exterior circumferential surface of the control shaft, wherein the operation unit is connected with the operation link so that the operation link rotates the control shaft while the operation unit moves in the shaft direction of the driving shaft.

Abstract translation: 公开了一种可变压缩比控制系统，其被配置为根据发动机的运行状态改变发动机中的活塞的上止点。 控制系统可以包括设置为动力源的马达，连接到活塞的控制轴，其中控制轴通过控制轴的旋转，与马达连接的驱动轴和连接到马达的驱动轴来改变活塞的上止点，并且 由电动机旋转，可通过驱动轴的旋转沿驱动轴的轴向移动的操作单元和从控制轴的外周面的一部分突出的操作连杆，其中操作单元连接 操作连杆使得操作连杆在操作单元沿着驱动轴的轴方向移动时旋转控制轴。

公开(公告)号：US08720395B2

公开(公告)日：2014-05-13

申请号：US13711488

申请日：2012-12-11

Applicant: Hyundai Motor Company

Inventor： Eun Ho Lee ,  Jin Kook Kong ,  Dong Seok Lee ,  Soo Hyung Woo ,  Yoonsik Woo

IPC: F02B75/04

CPC classification number: F02B75/045

Abstract: A variable compression ratio apparatus may include a connecting rod having a small end portion having an eccentric bearing installation hole, a large end portion rotatably connected to the crank shaft, and a space portion formed in a longitudinal direction of the connecting rod and communicated with the eccentric bearing installation hole, a piston pin fixedly, an eccentric bearing rotatably engaged to the eccentric bearing installation hole and coupled to the piston pin through a pin installation hole of the eccentric bearing, wherein the piston pin may be offset from a center axis of the eccentric bearing, an eccentric link connected to the eccentric bearing, a variable link rotatably connected to the eccentric link, a control link rotatably connected to the variable link, and a control shaft provided in the control link to rotate the control link, wherein the eccentric link may be rotated within the space portion.

Abstract translation: 可变压缩比装置可以包括具有小端部的连接杆，该端部具有偏心轴承安装孔，可旋转地连接到曲轴的大端部和沿连接杆的纵向方向形成的空间部分， 偏心轴承安装孔，活塞销固定，偏心轴承可旋转地接合到偏心轴承安装孔，并通过偏心轴承的销安装孔与活塞销连接，其中活塞销可偏离 偏心轴承，连接到偏心轴承的偏心连杆，可偏转连接到偏心连杆的可变连杆，可旋转地连接到可变连杆的控制连杆，以及设置在控制连杆中以使控制连杆旋转的控制轴，其中偏心 连杆可以在空间部分内旋转。

公开(公告)号：US09816409B2

公开(公告)日：2017-11-14

申请号：US14737776

申请日：2015-06-12

Applicant: Hyundai Motor Company

Inventor： Myungsik Choi ,  Gee Wook Shin ,  Won Gyu Kim ,  Gyu Han Hwang ,  Young Hong Kwak ,  Yoonsik Woo

IPC: F01L1/18 ,  F01L13/00

CPC classification number: F01L13/0021 ,  F01L1/18 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/267 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2001/467

Abstract: A variable valve lift apparatus to vary lift of a valve disposed at an engine may include an outer body selectively making a lever motion according to rotation of a cam, being adapted such that the valve is connected with one end thereof and a pivot axis of the lever motion is disposed at another end thereof, and forming an inside space, an inner body disposed in the inside space of the outer body and adapted such that one end thereof is rotatably connected with the one end of the outer body, a connecting shaft disposed so as to penetrate the one end of the outer body and the one end of the inner body and connect the outer body with the inner body, and a lost motion spring provided so as to return the inner body which is relatively rotated with the outer body around the connecting shaft.

公开(公告)号：US20140238355A1

公开(公告)日：2014-08-28

申请号：US14089134

申请日：2013-11-25

Applicant: Hyundai Motor Company

Inventor： Yoonsik Woo ,  Eun Ho Lee ,  Han Sang Kim ,  Yun Seok Kim

IPC: F02B23/08

CPC classification number: F02D15/04

Abstract: A variable compression ratio device may include a piston assembly having double pistons of which the volume may be varied, a lifter relatively moving one piston of the double pistons with respect to the other piston of the double pistons, a guide unit engaged with the piston assembly and guiding a movement of the one piston with respect to the other piston, and a locking unit selectively coupling the one piston to the other piston.

Abstract translation: 可变压缩比装置可以包括具有双活塞的活塞组件，体积可以变化，升降器相对于双活塞的另一活塞相对移动双活塞的一个活塞，与活塞组件接合的引导单元 并且引导所述一个活塞相对于所述另一活塞的运动，以及锁定单元，其将所述一个活塞选择性地联接到所述另一个活塞。

公开(公告)号：US08757112B2

公开(公告)日：2014-06-24

申请号：US13712100

申请日：2012-12-12

Applicant: Hyundai Motor Company

Inventor： Eun Ho Lee ,  Jin Kook Kong ,  Dong Seok Lee ,  Soo Hyung Woo ,  Yoonsik Woo

IPC: F02B75/04

CPC classification number: F02B75/047 ,  F02B75/044

Abstract: A variable compression ratio apparatus mounted on an engine may include an eccentric bearing assembly engaged with the piston through a piston pin, and including an eccentric ring having an eccentric hole so that the piston pin may be rotatably installed therethrough while being eccentric to the eccentric ring, and an eccentric link connected to the eccentric ring to transfer rotation force to the eccentric ring, a first connecting rod rotatably installed at an one side in an axial direction of the eccentric ring, a second connecting rod rotatably installed at the other side in the axial direction of the eccentric ring, and a control shaft connected to the eccentric link to rotate the eccentric bearing assembly by transferring the rotation force to the eccentric ring.

Abstract translation: 安装在发动机上的可变压缩比装置可以包括通过活塞销与活塞接合的偏心轴承组件，并且包括具有偏心孔的偏心环，使得活塞销可偏转到偏心环 以及与所述偏心环连接以将旋转力传递到所述偏心环的偏心连杆，可旋转地安装在所述偏心环的轴向一侧的第一连杆，可旋转地安装在所述偏心环的另一侧的第二连杆 所述偏心环的轴向方向以及连接到所述偏心连杆的控制轴，以通过将所述旋转力传递到所述偏心环来旋转所述偏心轴承组件。

公开(公告)号：US08733302B1

公开(公告)日：2014-05-27

申请号：US13710259

申请日：2012-12-10

Applicant: Hyundai Motor Company

Inventor： Yoonsik Woo ,  Jin Kook Kong ,  Dong Seok Lee ,  Eun Ho Lee ,  Soo Hyung Woo

IPC: F02B75/04

CPC classification number: F02B75/045

Abstract: A variable compression ratio apparatus may include a crankshaft, a connecting rod, first and second eccentric links mounted at both sides of the connection rod, respectively, and having one ends at which the piston pin may be eccentrically and rotatably installed, a swing link of which one end may be branched into two parts to form first and second branches, the first and second branches being connected to the other ends of the first and second eccentric links, and a control device connected to the other end of the swing link to control the swing link, wherein the crank arm includes guide surfaces formed in a predetermined thickness at an inner circumferential surface of the crank arm so that the first and second branches of the swing link slide to move between the guide surfaces.

Abstract translation: 可变压缩比装置可以包括曲轴，连杆，分别安装在连接杆的两侧的第一和第二偏心连杆，并且活塞销可以偏心地并可旋转地安装在其一端，摆动连杆 其一端可以分成两部分以形成第一和第二分支，第一和第二分支连接到第一和第二偏心连杆的另一端，以及控制装置，连接到摆动连杆的另一端以控制 所述摆动连杆，其中所述曲柄臂包括在所述曲柄臂的内周面处以预定厚度形成的引导表面，使得所述回转杆的第一和第二分支滑动以在所述引导表面之间移动。

公开(公告)号：US20140014070A1

公开(公告)日：2014-01-16

申请号：US13712100

申请日：2012-12-12

Applicant: HYUNDAI MOTOR COMPANY

Inventor： Eun Ho Lee ,  Jin Kook Kong ,  Dong Seok Lee ,  Soo Hyung Woo ,  Yoonsik Woo

IPC: F02B75/04

CPC classification number: F02B75/047 ,  F02B75/044

Abstract: A variable compression ratio apparatus mounted on an engine may include an eccentric bearing assembly engaged with the piston through a piston pin, and including an eccentric ring having an eccentric hole so that the piston pin may be rotatably installed therethrough while being eccentric to the eccentric ring, and an eccentric link connected to the eccentric ring to transfer rotation force to the eccentric ring, a first connecting rod rotatably installed at an one side in an axial direction of the eccentric ring, a second connecting rod rotatably installed at the other side in the axial direction of the eccentric ring, and a control shaft connected to the eccentric link to rotate the eccentric bearing assembly by transferring the rotation force to the eccentric ring.

Abstract translation: 安装在发动机上的可变压缩比装置可以包括通过活塞销与活塞接合的偏心轴承组件，并且包括具有偏心孔的偏心环，使得活塞销可偏转到偏心环 以及与所述偏心环连接以将旋转力传递到所述偏心环的偏心连杆，可旋转地安装在所述偏心环的轴向一侧的第一连杆，可旋转地安装在所述偏心环的另一侧的第二连杆 所述偏心环的轴向方向以及连接到所述偏心连杆的控制轴，以通过将所述旋转力传递到所述偏心环来旋转所述偏心轴承组件。