Development of Compact and High-efficient Scroll Compressor with Novel Bearing Structure

Conference Year

2016

Authors

Sungyong Ahn, Air Conditioning Compressor Team, LG Electronics Inc.Follow
Junchul Oh, Air Conditioning Compressor Team, LG Electronics Inc.Follow
Junghoon Park, Air Conditioning Compressor Team, LG Electronics Inc.Follow
Seheon Choi, Air Conditioning Compressor Team, LG Electronics Inc.Follow
Byeongchul Lee, Air Conditioning Compressor Team, LG Electronics Inc.Follow
Hyunwoong Cho, Air Conditioning Compressor Development Team, LG Electronics Inc.Follow
Jeonghun Kim, Air Conditioning Compressor Development Team, LG Electronics Inc.Follow

Keywords

VRF, Scroll Compressor, High Efficiency, Compact

Abstract

High-Side Shell(HSS) scroll compressors have been widely used for Variable Refrigerant Flow(VRF) system which is a powerful solution for the cooling and heating of commercial buildings. In order to improve the characteristics of the VRF system, a new HSS scroll compressor has been developed with a novel bearing structure. The core elements of the novel bearing structure are an outer-type bearing mounted on an orbiting scroll and a female-type eccentric journal inside of a shaft. The outer-type bush bearing which is made of engineering plastic without a back steel layer has been newly developed. The new HSS scroll compressor employing the novel bearing structure has a compact size, high efficiency, and low noise level compared to a conventional HSS scroll compressor. In order to confirm the advantages of the new HSS scroll compressor, basic tests and theoretical analysis have been performed in this study.