US 11,953,003 B2
Scroll compressor having at least one valve fixedly inserted into block insertion groove of non-orbiting scroll
Changeol Jo, Seoul (KR); Jeonghun Kim, Seoul (KR); Nara Han, Seoul (KR); and Juhwan Yun, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Jan. 24, 2023, as Appl. No. 18/100,712.
Claims priority of application No. 10-2022-0070269 (KR), filed on Jun. 9, 2022.
Prior Publication US 2023/0400022 A1, Dec. 14, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F04C 18/02 (2006.01); F04C 28/26 (2006.01); F04C 29/12 (2006.01)
CPC F04C 18/0215 (2013.01) [F04C 28/26 (2013.01); F04C 29/124 (2013.01); F04C 29/128 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A scroll compressor, comprising:
a casing;
an orbiting scroll coupled to a rotary shaft in an inner space of the casing to perform an orbiting motion;
a non-orbiting scroll engaged with the orbiting scroll to define a compression chamber, and provided with a discharge port and a plurality of bypass holes through which refrigerant in the compression chamber is discharged; and
a back pressure chamber assembly coupled to a rear surface of the non-orbiting scroll to press the non-orbiting scroll toward the orbiting scroll, wherein a block insertion groove is recessed by a predetermined depth into the rear surface of the non-orbiting scroll to accommodate the discharge port and the plurality of bypass holes therein, and a retainer block having at least one bypass valve that opens and closes the plurality of bypass holes is fixedly inserted into the block insertion groove, wherein the at least one bypass valve is fixed to a first axial side surface of the retainer block facing the block insertion groove, wherein the compression chamber includes a first compression chamber and a second compression chamber, wherein the plurality of bypass holes include a first bypass hole that communicates with the first compression chamber and a second bypass hole that communicates with the second compression chamber, and wherein the at least one bypass valve comprises:
a first bypass valve that opens and closes the first bypass hole;
a second bypass valve that opens and closes the second bypass hole; and
a valve connection portion that connects the first bypass valve and the second bypass valve, wherein a discharge guide protrusion extends axially from the retainer block toward the block insertion groove, wherein a discharge guide hole that communicates with the discharge port is formed in the discharge guide protrusion, and wherein a sealing connection portion that extends between the block insertion groove and the discharge guide protrusion is formed on the valve connection portion.