公开(公告)号：US10962010B2

公开(公告)日：2021-03-30

申请号：US15510401

申请日：2015-09-02

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Bumdong Sa ,  Byeongchul Lee

IPC: F04C29/00 ,  F04C18/356 ,  F04C23/00

Abstract: A compressor having a torque load reducing unit to move a center of weight to which a gas force is applied is provided. As the torque load reducing unit is formed at an oval-shaped roller, a distance between a rotation center of the roller and an operation point to which a gas force is applied is shortened. This may reduce a torque load to the roller, and may enhance a compression efficiency.

公开(公告)号：US10883502B2

公开(公告)日：2021-01-05

申请号：US15876304

申请日：2018-01-22

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Seoungmin Kang ,  Byeongchul Lee

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C15/00 ,  F04C18/344 ,  F01C21/08 ,  F04C27/00 ,  F04C29/12 ,  F04C23/00

Abstract: A hermetic compressor is provided that may include a vane that is inserted into a roller, rotates with the roller, and is pushed out toward an inner circumference of a cylinder by rotation of the roller to divide the compression chamber into a plurality of spaces. The vane may include a body having a sealing surface that contacts the inner circumference of the cylinder and inserted into the roller; and a guide that extends from an axial end of the body in a direction crossing a direction the vane slides out, and that is slidably inserted into a guide groove formed on at least one of the first bearing or the second bearing to restrain the vane from sliding out of the roller toward the inner circumference of the cylinder.

公开(公告)号：US20180187680A1

公开(公告)日：2018-07-05

申请号：US15855091

申请日：2017-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Seoungmin Kang ,  Byeongchul Lee

IPC: F04C23/00 ,  F04C18/344

CPC classification number: F04C23/008 ,  F01C21/106 ,  F04C18/344 ,  F04C18/3441 ,  F04C27/005 ,  F04C2240/50 ,  F04C2250/30 ,  F04C2250/301

Abstract: A hermetic compressor is provided that may include a cylinder having an inner circumferential surface which forms a compression chamber formed in an elliptical shape; a roller provided to be eccentric from the inner circumferential surface of the cylinder, and configured to change a volume of the compression chamber by being rotated; and at least one vane formed to be withdrawn towards the inner circumferential surface of the cylinder when the roller is rotated, and configured to divide the compression chamber into a plurality of spaces. When it is assumed that on the basis of a contact point where the inner circumferential surface of the cylinder and an outer circumferential surface of the roller are closest to each other, and a first center line passing through a center of the cylinder, an ellipse positioned at a first side of the first center line and forming the inner circumferential surface of the cylinder is defined as a first ellipse, a center point of the first ellipse is defined as a first center point, an ellipse positioned at a second side of the first center line and forming the inner circumferential surface of the cylinder is defined as a second ellipse, a center point of the second ellipse is defined as a second center point, under these assumptions, the first center point and the second center point are spaced apart from the center of the cylinder.