公开(公告)号：US20180080445A1

公开(公告)日：2018-03-22

申请号：US15706911

申请日：2017-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Jaesang LEE ,  Nayoung JEON ,  Byeongchul LEE

IPC: F04C18/02

CPC classification number: F04C18/023 ,  F04C2240/30 ,  F04C2240/50

Abstract: A co-rotating scroll compressor is provided in which a bearing configured to support a scroll is displaced by a torque repulsive force, which is applied to the bearing due to compression repulsion of a compressed fluid, the torque repulsive force is converted into a sealing force of compression pockets, which are defined by wraps of co-rotating scrolls such that the sealing force of the compression pockets is increased, and in which a bearing housing is rotatably installed in a housing accommodation hole, a rotational center of a second scroll is positioned at a position eccentric from a rotational center of a bearing housing, the bearing housing is rotated by the torque repulsive force applied to the second scroll, some of the torque repulsive force is converted into the sealing force against a sealing disturbing force, and thus, the wrap of the second scroll is pressed against the wrap of the first scroll by the sealing force.

公开(公告)号：US20170275996A1

公开(公告)日：2017-09-28

申请号：US15506300

申请日：2015-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Gukhyun CHO ,  Yunhi LEE ,  Byeongchul LEE

IPC: F01C21/08 ,  F04C18/356 ,  F04C18/324

Abstract: A compressor according to the present invention comprises a hinge recess formed at a rolling piston and a hinge protrusion formed at a vane to be inserted into the hinge recess. A diameter of the hinge protrusion is greater than an interval between both ends of an opening of the hinge recess. A bearing surface, which comes in contact with an inner circumferential surface of the hinge recess, of an outer circumferential surface of the hinge protrusion, has a circumferential surface below 90° at both sides, respectively, based on a central line in a lengthwise direction of the vane. This structure may facilitate for cutting and grinding the bearing surface so as to reduce a machining cost, and also improve a machining degree and thus stabilize behaviors of the rolling piston and the vane so as to enhance compression efficiency.

公开(公告)号：US20170218956A1

公开(公告)日：2017-08-03

申请号：US15417486

申请日：2017-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Yunhi LEE ,  Seoungmin KANG ,  Jinung SHIN ,  Seokhwan MOON ,  Byeongchul LEE

IPC: F04C18/356 ,  F04C27/00 ,  F04C29/00

Abstract: The present disclosure may provide a compressor in which an outer circumferential side cross-sectional area of a vane slot is formed to be smaller than an inner circumferential side cross-sectional area thereof to decrease an area receiving a force in a roller direction by a vane so as to reduce a contact force between the roller and the vane, and a gas accommodation portion capable of selectively forming a suction pressure and an intermediate pressure is formed between the vane and the vane slot to appropriately control a contact force between the vane and the roller, and a contact surface of the vane facing the roller is broadly formed at a side of a compression chamber to appropriately reduce a contact force between the roller and the vane, and a space portion forming a discharge pressure is formed at least either one side of a side surface of the vane and a cylinder corresponding thereto to decrease a side directional reaction force applied to the vane, thereby reducing a mechanical friction loss between the vane and the cylinder.

公开(公告)号：US20150285302A1

公开(公告)日：2015-10-08

申请号：US14679077

申请日：2015-04-06

Applicant: LG ELECTRONICS INC.

Inventor： Junchul OH ,  Sungyong AHN ,  Eunju HWANG ,  Byeongchul LEE ,  Secheon CHOI

IPC: F16C33/20 ,  F04C29/02 ,  F04C29/06 ,  F04C18/02 ,  F04C29/00

CPC classification number: F16C33/201 ,  F01C21/02 ,  F04C18/0215 ,  F04C29/0057 ,  F04C29/0071 ,  F04C29/02 ,  F04C29/06 ,  F04C2230/60 ,  F04C2240/56 ,  F05C2225/12 ,  F05C2251/00 ,  F05C2251/14 ,  F16C2360/42

Abstract: A bush bearing and a scroll compressor including a bush bearing are provided. A boss of an orbiting scroll may be inserted into and coupled to a boss coupling groove of a rotational shaft, and thus, an outer circumferential surface of a bush bearing may wholly contact an inner circumferential surface of the boss coupling groove, thereby decreasing wear of the bush bearing. Further, friction loss in the bush bearing may be reduced, and thus, compression efficiency and reliability may be enhanced, noise may be reduced, and material costs may be reduced. Furthermore, despite that the bush bearing is formed in a ring shape and press-fitted to the boss, as the bush bearing may be formed of a plastic material having an ether ketone bonding in consideration of a thermal expansion rate, an elongation, and a press-fit range, the bush bearing may be effectively prevented from being detached from the boss, thereby enhancing a reliability of a compressor.

Abstract translation: 提供了一种衬套轴承和包括衬套轴承的涡旋压缩机。 绕动涡旋件的凸台可以插入并联接到旋转轴的凸台连接凹槽，因此衬套轴承的外圆周表面可以完全接触凸起联接槽的内圆周表面，从而减小 衬套轴承。 此外，可以减小衬套轴承中的摩擦损失，从而可以提高压缩效率和可靠性，可以降低噪声，并且可以降低材料成本。 此外，尽管衬套轴承形成为环形并且压配合到凸台，但是考虑到热膨胀率，伸长率和延伸率，衬套轴承可以由具有醚酮键合的塑料材料形成 压配合范围，可以有效地防止衬套轴承与凸台分离，从而提高压缩机的可靠性。

公开(公告)号：US20140356210A1

公开(公告)日：2014-12-04

申请号：US14293028

申请日：2014-06-02

Applicant: LG ELECTRONICS INC.

Inventor： Sungyong AHN ,  Seheon CHOI ,  Byeongchul LEE ,  Byoungchan KIM ,  Junghoon PARK

IPC: F04C18/02

CPC classification number: F04C18/0215 ,  F04C23/008 ,  F04C29/0057 ,  F04C29/0071 ,  F04C2230/91 ,  F04C2240/56 ,  F05C2225/12 ,  F05C2251/14

Abstract: A scroll compressor is provided in which a boss of an orbiting scroll is inserted into and coupled to a boss coupling recess of a crank shaft, so that friction loss of a bearing portion of the crank shaft may be reduced, compression efficiency and reliability of the compressor may be enhanced, and noise and material costs may be reduced. A bush bearing may be formed as a coating on the boss of the orbiting scroll, so that a thickness of the bearing portion of the crank shaft may be reduced. Since an outer circumferential surface of the bearing portion is in contact with an inner circumferential surface of the boss coupling recess, damage to the bearing portion may be prevented.

Abstract translation: 提供一种涡旋压缩机，其中绕动涡旋盘的凸台插入并联接到曲轴的凸台联接凹槽，使得曲轴的轴承部分的摩擦损失可能降低，压缩效率和可靠性 可以增强压缩机，并且可以降低噪声和材料成本。 衬套轴承可以形成为绕动涡旋盘的凸台上的涂层，使得可以减小曲柄轴承部分的厚度。 由于轴承部的外周面与凸台接合凹部的内周面接触，所以可以防止对轴承部的损伤。

公开(公告)号：US20230088110A1

公开(公告)日：2023-03-23

申请号：US18072795

申请日：2022-12-01

Applicant: LG ELECTRONICS INC.

Inventor： Yongkyu CHOI ,  Cheolhwan KIM ,  Byeongchul LEE

IPC: F04C18/02 ,  F04C23/00

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：US20220082098A1

公开(公告)日：2022-03-17

申请号：US17535869

申请日：2021-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Kangwook LEE ,  Taekyoung KIM ,  Byeongchul LEE ,  Cheolhwan KIM

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

Abstract: A scroll compressor having a casing, a drive motor which is held in place within the casing and has an internal flow passage and an external flow passage to pass through, a rotation shaft which is combined with the drive motor for rotation, a frame that is provided under the drive motor and through which the rotation shaft passes for support, a first scroll which is provided under the frame and on which one flank surface a first wrap is formed, a second scroll which is provided between the frame and the first scroll, on which a second wrap that is engaged with the first wrap is formed, with which the rotation shaft is eccentrically combined and which forms a compression chamber, and a flow passage separation unit which separates a space between the drive motor and the frame into an internal space and an external space is provided.

公开(公告)号：US20200332798A1

公开(公告)日：2020-10-22

申请号：US16796457

申请日：2020-02-20

Applicant: LG Electronics Inc.

Inventor： Junghoon PARK ,  Honghee PARK ,  Gyeongbeom LEE ,  Byeongchul LEE

IPC: F04C29/02 ,  F04C18/02 ,  F04C29/04 ,  F04C23/02

Abstract: The present disclosure provides a motor-operated compressor, comprising a main housing, a motor unit disposed at one end of the main housing, a rotating shaft coupled to the motor unit, a fixed scroll disposed at another end of the main housing facing the motor unit, an orbiting scroll coupled to the rotating shaft, and a rear housing disposed to face one side surface of the orbiting scroll opposite to a side of the orbiting scroll facing the fixed scroll. The rotating shaft may be rotatably coupled to the fixed scroll, and the orbiting scroll may be configured to perform an orbiting motion with respect to the fixed scroll. The orbiting scroll may be configured to form a compression space together with the fixed scroll and may comprise a discharge port. The rear housing may comprise a space portion configured to communicate with the discharge port of the orbiting scroll.

公开(公告)号：US20200158108A1

公开(公告)日：2020-05-21

申请号：US16547705

申请日：2019-08-22

Applicant: LG ELECTRONICS INC.

Inventor： Yongkyu CHOI ,  Honghee PARK ,  Bumjune SEO ,  Byeongchul LEE

IPC: F04C18/02

Abstract: A motor operated compressor has a housing having a motor chamber and a driving motor located in the motor chamber. The compressor also has a first scroll and a second scroll coupled to the first scroll to form a compression chamber. A rotating shaft is coupled to a rotor of the driving motor and eccentrically coupled to the first scroll. A rear housing of the motor forms a discharge chamber with the second scroll. A shaft receiving portion that radially supports the rotating shaft is located either in the second scroll or in the rear housing. An oil supply guide flow path located either in the second scroll or in the rear housing connects the discharge chamber and the shaft receiving portion. A decompression member inserted into the oil supply guide flow path, reduces a pressure of a fluid passing through the oil supply guide flow path.

公开(公告)号：US20180334955A1

公开(公告)日：2018-11-22

申请号：US15983712

申请日：2018-05-18

Applicant: LG Electronics Inc.

Inventor： Yunhi LEE ,  Byeonghun YU ,  Wheesung OH ,  Byeongchul LEE

IPC: F02B55/08 ,  F02B55/02

CPC classification number: F02B55/08 ,  F02B55/02

Abstract: The present disclosure relates to a rotary engine having a crankshaft with an improved structure, the rotary engine including a housing, a rotor, housing covers, and a crankshaft installed to penetrate through the rotor so as to receive rotational force from the rotor, wherein the crankshaft includes a first member extending in one direction and having an insertion groove recessed in one side surface thereof, a second member extending to penetrate through a center portion of the housing and provided with a protruding portion on one end thereof to be fixedly inserted into the insertion groove, and a coupling member interposed at a position where the insertion groove and the protruding portion overlap each other such that the first member and the second member are closely coupled to each other.