公开(公告)号：US09920760B2

公开(公告)日：2018-03-20

申请号：US14286903

申请日：2014-05-23

Applicant: LG ELECTRONICS INC.

Inventor： Sanghun Sung ,  Kangwook Lee ,  Yongkyu Choi

IPC: F04C29/00 ,  F04C18/00 ,  F04C18/02 ,  F01C17/06 ,  F04C23/00

CPC classification number: F04C18/0269 ,  F01C17/066 ,  F04C18/0215 ,  F04C23/008

Abstract: A scroll compressor is provided. An interference prevention portion may be formed on a side wall surface of at least one of a fixed wrap or an orbiting wrap. With such a configuration, an end of the fixed wrap may not interfere with the orbiting wrap at an arc compression surface of the orbiting wrap, but rather, be inserted into the interference prevention portion. Accordingly, occurrence of a gap between the fixed wrap and the orbiting wrap may be prevented, and thus, compression efficiency enhanced.

公开(公告)号：US09920759B2

公开(公告)日：2018-03-20

申请号：US14590229

申请日：2015-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Sanghun Sung ,  Jaesang Lee ,  Kitae Jang ,  Inho Won ,  Byeongchul Lee

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

CPC classification number: F04C18/0215 ,  F04C18/0261 ,  F04C23/008 ,  F04C29/126

Abstract: A scroll compressor is provided that may include a casing; a discharge cover fixed to an inner space of the casing, that divides the inner space of the case into a suction space and a discharge space; a main frame in the casing, and spaced from the discharge cover; an orbital scroll that performs an orbital motion on the main frame; a non-orbital scroll coupled to the main frame so as to be movable up and down with respect to the orbital scroll, that forms a suction chamber, an intermediate pressure chamber, and a discharge chamber together with the orbital scroll; and a back pressure plate provided between the discharge cover and the non-orbital scroll, that forms a back pressure chamber that communicates with the intermediate pressure chamber. With such a configuration, a bypass valve may be easily installed, and application of an overload minimized.