公开(公告)号：US20180187682A1

公开(公告)日：2018-07-05

申请号：US15856548

申请日：2017-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Minjae KIM ,  Sungsoon Jang ,  Seongjo Kim ,  Jeongwoo Han

IPC: F04C28/26 ,  F04C18/02 ,  F04C23/00 ,  F04C29/12

CPC classification number: F04C28/26 ,  F04C18/0215 ,  F04C18/0253 ,  F04C23/008 ,  F04C27/005 ,  F04C28/10 ,  F04C29/128 ,  F04C2270/205

Abstract: A scroll compressor with a first valve having a first surface to open/close between a first path and a second path; a back pressure chamber assembly or non-orbiting scroll having a third path through which a first pressure refrigerant flows, a fourth path through which refrigerant of a second pressure lower than the first pressure flows, and one end in communication with the third and fourth paths and the other end having a fifth path in communication with a second surface of the first valve; and a second valve provided where the third, fourth, and fifth paths to meet and moveable between first and second positions, wherein at the first position the third and fifth paths communicate to supply the first pressure refrigerant toward the second surface, and at the second position the fourth and fifth paths communicate to supply the second pressure refrigerant toward the second surface.

公开(公告)号：US10815998B2

公开(公告)日：2020-10-27

申请号：US15856548

申请日：2017-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Minjae Kim ,  Sungsoon Jang ,  Seongjo Kim ,  Jeongwoo Han

IPC: F04C28/26 ,  F04C18/02 ,  F04C28/10 ,  F04C23/00 ,  F04C29/12 ,  F04C27/00

Abstract: A scroll compressor with a first valve having a first surface to open/close between a first path and a second path; a back pressure chamber assembly or non-orbiting scroll having a third path through which a first pressure refrigerant flows, a fourth path through which refrigerant of a second pressure lower than the first pressure flows, and one end in communication with the third and fourth paths and the other end having a fifth path in communication with a second surface of the first valve; and a second valve provided where the third, fourth, and fifth paths meet and moveable between first and second positions, wherein at the first position the third and fifth paths communicate to supply the first pressure refrigerant toward the second surface, and at the second position the fourth and fifth paths communicate to supply the second pressure refrigerant toward the second surface.