公开(公告)号：USRE48826E1

公开(公告)日：2021-11-23

申请号：US16850303

申请日：2020-04-16

Applicant: LG ELECTRONICS INC.

Inventor： Kangwook Lee ,  Cheolhwan Kim ,  Byeongchul Lee

IPC: F04C29/02 ,  F04C18/02 ,  F04C23/00 ,  F04C29/00

Abstract: A compressor is provided that may include a passage separator provided between an electric motor drive and a compression device to separate a refrigerant passage from an oil passage. The passage separator may include a first partition wall and a second partition wall. The first partition wall may be disposed between an inner circumferential surface of a casing and a discharge hole of the compression device, and the second partition wall may be disposed between the discharge hole and a balance weight. Accordingly, the refrigerant passage may be separated from the oil passage between the compression device and electric motor drive, thereby efficiently recovering oil to an oil storage space.

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：US10247189B2

公开(公告)日：2019-04-02

申请号：US15072525

申请日：2016-03-17

Applicant: LG ELECTRONICS INC.

Inventor： Taemin Earmme ,  Byeongchul Lee ,  Cheolhwan Kim ,  Sanghun Seong

IPC: F01C17/06 ,  F04C18/02 ,  F04C29/00

Abstract: A scroll compressor is provided. The scroll compressor may include a fixed scroll having a fixed wrap and a plurality of first key recesses, an orbiting scroll engaged with the fixed scroll to define a compression chambers and having an orbiting wrap and a plurality of second key recesses, the orbiting scroll performing an orbiting motion with respect to the fixed scroll, a drive having a rotation shaft coupled to the orbiting scroll such that one end portion thereof overlaps the orbiting wrap in a lateral direction, and an Oldham ring having a plurality of first and second keys coupled to the plurality of first key recesses and the plurality of second key recesses, respectively. The plurality of second keys may at least temporarily protrude from the plurality of second key recesses in a radial direction during the orbiting motion. Further, the plurality of second key recesses and the plurality of second keys may be disposed to obtain maximum contact areas therebetween at a moment of start of discharging.

公开(公告)号：US20180372098A1

公开(公告)日：2018-12-27

申请号：US15830184

申请日：2017-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Sang baek PARK ,  Jungsun Choi ,  Cheol Hwan Kim ,  Byeongchul Lee

IPC: F04C18/02 ,  F04C29/12 ,  F04C23/00

Abstract: A compressor is provided which is configured to allow lubrication of a thrust surface through an oil groove formed in a thrust surface of a fixed scroll. Also, a scroll compressor is provided which smoothly supplies oil to a thrust surface of a fixed scroll by including a fixed scroll having an oil groove formed in the thrust surface of a fixed scroll sidewall, and allows an injection pressure acting on an orbiting scroll in an upward direction to be added by supplying the oil guided to the oil groove to the thrust surface of the fixed scroll such that an overturn moment generated in the orbiting scroll may be offset.

公开(公告)号：US10087937B2

公开(公告)日：2018-10-02

申请号：US14945567

申请日：2015-11-19

Applicant: LG ELECTRONICS INC.

Inventor： Sanghun Seong ,  Kitae Jang ,  Inho Won ,  Jaesang Lee ,  Byeongchul Lee

IPC: F01C1/063 ,  F04C18/063 ,  F03C2/02 ,  F04C14/24 ,  F04C29/00 ,  F04C18/02 ,  F04C29/02

Abstract: A scroll compressor is provided, in which a balancing space may be formed on a sub frame to accommodate at least one balance weight, and an oil discharge hole may be formed on a main frame, thereby suppressing, all from being introduced into or remaining in the balancing space to minimize agitation loss due to oil agitation in the balancing space, and forming a thrust surface of the main frame adjacent to an axial center of the drive shaft to suppress axial leakage at a central portion of the orbiting scroll, reducing a size of the main frame to reduce a total weight of the compressor, facilitating a centering operation of the sub frame, and suppressing an outer diameter of the sub frame from being increased, thereby accomplishing miniaturization of the scroll compressor.

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.

公开(公告)号：US09951773B2

公开(公告)日：2018-04-24

申请号：US14708436

申请日：2015-05-11

Applicant: LG ELECTRONICS INC.

Inventor： Yongkyu Choi ,  Cheolhwan Kim ,  Byeongchul Lee

IPC: F04C18/02 ,  F04C23/00

CPC classification number: F04C18/0269 ,  F04C18/0215 ,  F04C23/008

Abstract: A compressor is provided. The compressor may include a fixed wrap, and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to form compression chambers. The fixed wrap and the orbiting wrap may have irregular wrap curves. At least one interference avoiding portion at which a spacing between the wraps is greater than an orbiting radius or at least one gap compensating portion at which the spacing between the wraps is smaller than the orbiting radius, in a state in which a center of the fixed scroll and a center of the orbiting scroll are aligned with each other, may be provided on a sidewall surface of the fixed wrap or the orbiting wrap, whereby frictional loss or abrasion due to interference between the wraps or a refrigerant leakage due to a gap between the wraps may be prevented.

公开(公告)号：US09689388B2

公开(公告)日：2017-06-27

申请号：US14782393

申请日：2014-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Yoonsung Choi ,  Byungkil Yoo ,  Seheon Choi ,  Jinho Kim ,  Chuljig Bae ,  Byeongchul Lee

IPC: F01C21/10 ,  F04C23/00 ,  F04C18/02 ,  F04C18/356 ,  F04C29/00 ,  F04C29/12

CPC classification number: F04C23/005 ,  F04C18/0215 ,  F04C18/0253 ,  F04C18/3564 ,  F04C23/008 ,  F04C29/0057 ,  F04C29/12 ,  F04C2240/56 ,  F05C2225/00

Abstract: A compressor according to the present disclosure may include a container; a drive motor provided in the container; a crankshaft coupled to a rotor of the drive motor; a first scroll coupled to the crankshaft to receive a rotational force of the drive motor to perform an orbiting movement; a second scroll coupled to the first scroll to form a first compression unit and a second compression unit along with the first scroll; and a vane provided in the first scroll or second scroll to be brought into contact with the other side scroll to form the second compression unit, wherein the first compression unit is carried out in a scroll compression mode and the second compression unit is carried out in a rotary compression mode.

公开(公告)号：US09644629B2

公开(公告)日：2017-05-09

申请号：US14031443

申请日：2013-09-19

Applicant: LG ELECTRONICS INC.

Inventor： Jinsung Park ,  Eunsoo Yang ,  Chuljig Bae ,  Byeongchul Lee

IPC: F01C1/02 ,  F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C29/02 ,  F04C18/02 ,  F04C23/00

CPC classification number: F04C29/02 ,  F04C18/0215 ,  F04C23/008 ,  F04C2230/602 ,  F04C2230/91 ,  F04C2230/92 ,  F04C2240/54 ,  F04C2240/603 ,  F05C2225/04 ,  F05C2225/12 ,  F16C17/02 ,  F16C33/1045 ,  F16C33/201 ,  F16C33/205 ,  F16C2208/36 ,  F16C2240/60

Abstract: A scroll compressor having a bearing is provided. The scroll compressor includes: a casing; a main frame fixed to the casing and having a shaft insertion hole formed therein; a fixed scroll fixed to the casing and disposed above the main frame; an orbiting scroll forming a compression chamber together with the fixed scroll and having a boss portion formed on a lower surface thereof; a rotational shaft having an end portion insertedly fixed in the boss portion in a state in which the rotational shaft is insertedly positioned in the shaft insertion hole; and a lubricating layer made of a PEEK material and formed in the shaft insertion hole or the boss portion, wherein the lubricating layer is formed by applying a liquid material to the shaft insertion hole or the boss portion.