US 12,460,644 B2
Scroll compressor
Kwang Jin Kim, Daejeon (KR); Kyung Jae Lee, Daejeon (KR); Jong Hyun Jeon, Daejeon (KR); and Soo Cheol Jeong, Daejeon (KR)
Assigned to HANON SYSTEMS, Daejeon (KR)
Appl. No. 18/292,979
Filed by Hanon Systems, Daejeon (KR)
PCT Filed Apr. 20, 2023, PCT No. PCT/KR2023/005344
§ 371(c)(1), (2) Date Jan. 29, 2024,
PCT Pub. No. WO2024/058333, PCT Pub. Date Mar. 21, 2024.
Claims priority of application No. 10-2022-0115087 (KR), filed on Sep. 13, 2022.
Prior Publication US 2025/0207593 A1, Jun. 26, 2025
Int. Cl. F04C 29/12 (2006.01); F04C 18/02 (2006.01)
CPC F04C 29/12 (2013.01) [F04C 18/0215 (2013.01); F04C 2240/30 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A scroll compressor comprising:
a housing;
a motor provided inside the housing;
a rotary shaft configured to be rotated by the motor;
an orbiting scroll configured to orbit in conjunction with the rotary shaft; and
a fixed scroll configured to define a compression chamber together with the orbiting scroll,
wherein the housing further comprises a rear housing which defines a discharge chamber configured to accommodate a refrigerant discharged from the compression chamber,
wherein an injection valve assembly configured to define an introduction chamber into which a refrigerant is introduced from an outside of the housing in the rear housing and guide the refrigerant of the introduction chamber to the compression chamber is provided between the fixed scroll and the rear housing,
wherein the injection valve assembly further comprises:
a cover plate coupled to the rear housing and having an inflow port into which the refrigerant from the introduction chamber is introduced;
a valve plate coupled to the cover plate and having an outflow port through which the refrigerant introduced from the inflow port is discharged;
a gasket retainer interposed between the cover plate and the valve plate and configured to prevent a leak of the refrigerant; and
an injection valve interposed between the cover plate and the gasket retainer and configured to open or close the inflow port, and
wherein the gasket retainer further comprises:
a retainer portion formed to be inclined in a direction in which the injection valve is opened;
a plurality of fastening holes formed to penetrate on a radially outside of the retainer portion so as to allow a fastening bolt to be inserted thereinto;
a first half-bead protruding from one surface and extending radially inward of the plurality of the fastening holes while surrounding the retainer portion; and
a second half-bead protruding from one surface and extending radially outward of the plurality of fastening holes while surrounding the first half-bead.