公开(公告)号：EP3138994B1

公开(公告)日：2018-11-21

申请号：EP16186211.5

申请日：2016-08-30

Applicant: LG ELECTRONICS INC.

Inventor： OH, Junchul ,  LEE, Jaeha ,  CHOI, Seheon ,  LEE, Byeongchul

IPC: F01C17/06 ,  F04C23/00 ,  F04C18/02

CPC classification number: F04C29/0057 ,  F01C17/066 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/0085 ,  F04C2210/26 ,  F04C2230/41 ,  F04C2230/91 ,  F04C2240/10 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2270/16 ,  F05C2201/021 ,  F05C2201/0454 ,  F05C2201/0466 ,  F05C2203/04 ,  F05C2251/10 ,  F05C2253/12

Abstract: A scroll compressor may include a casing (110) having a sealed inner space; a drive motor (120) provided in the inner space of the casing to generate a rotational force; a rotating shaft (160) coupled to a rotor of drive motor to rotate; an orbiting scroll (150) formed of an aluminum material, and coupled to the rotating shaft to perform an orbiting movement; a fixed scroll (140) coupled to the orbiting scroll to form a compression space consisting of a suction chamber, an intermediate pressure chamber and a discharge chamber; and a rotation prevention member (170) coupled to the orbiting scroll, and formed of a sintered metal. As a result, it may be possible to prevent an Oldham ring from being worn out due to contact with the orbiting scroll. Furthermore, a weight loss portion or wear-resistant coating layer may be formed on a part of the Oldham ring, thereby suppressing a vibration noise of the compressor from being increased due to a weight increase of the Oldham ring.

公开(公告)号：EP3348839A1

公开(公告)日：2018-07-18

申请号：EP18150592.6

申请日：2018-01-08

Applicant: LG Electronics Inc.

Inventor： OH, Junchul ,  LEE, Byeongchul ,  CHOI, Seheon

IPC: F04D17/12 ,  F04D29/051 ,  F04D29/58

Abstract: A turbo compressor, includes: an impeller housing having an impeller accommodation space, having an inlet formed at one side of the impeller accommodation space, and having an outlet formed at another side of the impeller accommodation space and communicated with the inlet; an impeller accommodated in the impeller accommodation space of the impeller housing, rotated together with a rotation shaft by being coupled to the rotation shaft, and configured to centrifugally-compress a fluid sucked through the inlet of the impeller housing, and to discharge the compressed fluid to outside of the impeller housing through the outlet; a back pressure space formed between a rear surface of the impeller and the impeller housing; a back pressure passage connected between the outlet of the impeller housing and the back pressure space; and a back pressure control valve installed between the back pressure passage and the back pressure space, and configured to selectively open and close a region therebetween.