公开(公告)号：US20240328418A1

公开(公告)日：2024-10-03

申请号：US18612080

申请日：2024-03-21

Applicant: LG ELECTRONICS INC.

Inventor： Minho LEE ,  Sungyong AHN ,  Junghoon PARK ,  Seheon CHOI

IPC: F04C18/02 ,  F04C29/02

CPC classification number: F04C18/0215 ,  F04C29/02 ,  F04C2240/30 ,  F04C2240/50

Abstract: A scroll compressor is provided that may include a casing, a main frame, a rotational shaft, an orbiting scroll, a fixed scroll, and an oil supply guide. A second oil supply guide of the oil supply guide may be disposed in at least one of the orbiting scroll or the fixed scroll and extend along a thrust bearing surface between the orbiting scroll and the fixed scroll to provide communication between a first oil supply guide and a compression chamber having a lower pressure than an oil storage space. This may produce a great pressure difference between ends of an oil supply passage including the first oil supply guide and the second oil supply guide, and allow smooth oil supply using differential pressure to the thrust bearing surface between the fixed scroll and the orbiting scroll.

公开(公告)号：US20200240409A1

公开(公告)日：2020-07-30

申请号：US16635956

申请日：2018-07-30

Applicant: LG Electronics Inc.

Inventor： Jaeha LEE ,  Jinho KIM ,  Sungyong AHN ,  Byeongchul LEE ,  Seheon CHOI

IPC: F04C18/02 ,  F04C29/00

Abstract: A bush bearing having an outer lubricating layer, a manufacturing method therefor and a scroll compressor having same applied thereto, according to the present disclosure, includes a bush bearing comprising: a base member which has a cylindrical shape having no separated surfaces along the circumferential direction; and a lubricating member which is formed from a material having a lower rigidity and more excellent lubricity than the base member, and has a cylindrical shape having no separated surfaces along the circumferential direction by being integrally provided to the outer circumferential surface of the base member, wherein the cylindricity of the outer circumferential surface of the lubricating member satisfies a value that is within 0.6% of the average thickness of the lubricating member, and the lubricating member has carbon fiber contained in a resin base, wherein the carbon fiber has cut surfaces exposed on both ends of the lubricating member.

公开(公告)号：US20180328634A1

公开(公告)日：2018-11-15

申请号：US15971354

申请日：2018-05-04

Applicant: LG Electronics Inc.

Inventor： Sungyong AHN ,  Seheon CHOI

IPC: F25B31/00 ,  F04D19/00 ,  F04D25/06 ,  F04D29/32 ,  F04D29/52 ,  F04D29/58 ,  F25B1/053

CPC classification number: F25B31/006 ,  F04D25/0606 ,  F04D29/0513 ,  F04D29/057 ,  F04D29/441 ,  F04D29/5806 ,  F04D29/584 ,  H02K5/20 ,  H02K7/14

Abstract: A turbo compressor according to the present invention comprises: a driving unit including a stator and a rotor that generate a rotational force and a rotary shaft that is connected to and rotated by the rotor; an impeller connected to the rotary shaft to pressurize a suction refrigerant in the radial direction of the rotary shaft; and a casing configured to receive the driving unit and the impeller and support the rotary shaft, wherein the casing comprises: a first shell to which the stator is fixed, the first shell rotatably supporting the rotary shaft; and a second shell spaced apart from the first shell to surround the first shell, a shell passage for the refrigerant pressurized by the impeller being defined in a space between the first and second shells. As a result, the discharge refrigerant cools the driving unit, which improves the efficiency of the compressor.