公开(公告)号：US20200032803A1

公开(公告)日：2020-01-30

申请号：US16510464

申请日：2019-07-12

Applicant: LG Electronics Inc.

Inventor： Howon LEE ,  Taekyoung KIM ,  Cheolhwan KIM

IPC: F04C29/12 ,  F04C18/02

Abstract: Disclosed herein is a scroll compressor in which the discharge hole is formed to have an axial length less than an axial length of the fixed shaft accommodation portion, thereby increasing efficiency.

公开(公告)号：US20190309753A1

公开(公告)日：2019-10-10

申请号：US16378653

申请日：2019-04-09

Applicant: LG ELECTRONICS INC.

Inventor： Nayoung JEON ,  Taekyoung KIM ,  Cheolhwan KIM

IPC: F04C29/12 ,  F04C18/02

Abstract: A scroll compressor may include a second scroll provided between a frame and a first scroll and forming compression chambers with the first scroll while orbiting relative to the first scroll; a discharge port provided in the first scroll to allow refrigerant compressed in the compression chamber to a lower side of the first scroll; a discharge passage formed through the first scroll and the frame to guide the refrigerant discharged through the discharge port to an upper side of the frame; and a discharge cover coupled to the first scroll and having a space to accommodate end portions of the discharge port and the discharge passage to guide the refrigerant discharged through the discharge port to the discharge passage. A volume of a discharge space defined in the space by the first scroll may be 4.5 or more, obtained by dividing a volume of the discharge space by a total volume of an initial compression chamber among the compression chambers.

公开(公告)号：US20190136857A1

公开(公告)日：2019-05-09

申请号：US16239620

申请日：2019-01-04

Applicant: LG ELECTRONICS INC.

Inventor： Yongkyu CHOI ,  Kangwook LEE ,  Cheolhwan KIM

IPC: F04C18/02 ,  F04C29/12

Abstract: A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the discharge outlet of at least one of the first discharge port or the second discharge port may have a larger sectional area than the discharge inlet. Accordingly, a discharge delay in each compression chamber may be prevented in advance, thereby suppressing compression loss.

公开(公告)号：US20180328364A1

公开(公告)日：2018-11-15

申请号：US15975806

申请日：2018-05-10

Applicant: LG ELECTRONICS INC.

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

IPC: F04C29/02 ,  F04C29/00 ,  F04C18/02 ,  B01D45/14 ,  B01D50/00

CPC classification number: F04C29/026 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/045 ,  F04C29/12

Abstract: A scroll compressor includes a casing, and an internal sealed space in the casing; a drive motor configured with a stator and a rotor which rotates within the stator, and that has an internal flow passage and an external flow passage; a rotation shaft connected to the rotor; a compression unit that includes a first scroll, and a second scroll which is engaged with the first scroll to form a compression chamber, with which the rotation shaft is eccentrically combined; a discharge pipe that communicates with an upper space of the internal space; an oil separation member disposed in the upper space; and a guidance member that is provided between an upper end of the drive motor and a lower end of the discharge pipe and guides the refrigerant with which the oil is mixed, to the oil separation member.

公开(公告)号：US20170306964A1

公开(公告)日：2017-10-26

申请号：US15448955

申请日：2017-03-03

Applicant: LG ELECTRONICS INC.

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

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

CPC classification number: F04C29/026 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/0085 ,  F04C29/023 ,  F04C29/12 ,  F04C2210/22 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/603

Abstract: A scroll compressor is provided that may include a casing that contains oil in a lower space thereof; a drive motor provided at a position spaced from an upper end of the casing by a predetermined gap, such that an upper space is formed in the casing; a rotational shaft coupled to a rotor of the drive motor, and having an oil supply passage to guide the oil contained in the casing to an upper side of the drive motor; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap so as to form a compression chamber by being engaged with the fixed wrap, and a rotational shaft coupling portion to couple the rotational shaft to the orbiting scroll in a penetrating manner; and an oil collection unit including an oil separator provided at the upper space of the casing, and an oil guide having a first end that communicates with the oil separator and a second end that communicates with a lower space of the fixed scroll.

公开(公告)号：US20170306954A1

公开(公告)日：2017-10-26

申请号：US15491023

申请日：2017-04-19

Applicant: LG ELECTRONICS INC.

Inventor： Cheolhwan KIM ,  Yongkyu CHOI ,  Taekyoung Kim

IPC: F04C18/02 ,  F04C29/00

CPC classification number: F04C18/0269 ,  F01C21/102 ,  F04C18/0215 ,  F04C23/008 ,  F04C2230/602

Abstract: A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. A wrap thickness of the fixed wrap may be greater than a wrap thickness of the orbiting wrap within a range which forms the suction chamber. With such a configuration, even if the fixed scroll or the orbiting scroll is thermally-expanded, a transformation of the fixed wrap at a suction side may be prevented. This may prevent a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction side, thereby enhancing compression efficiency.