US 11,982,277 B2
Scroll compressor
Kyung Jae Lee, Daejeon (KR); and Jeong Ki Seo, Daejeon (KR)
Assigned to HANON SYSTEMS, Daejeon (KR)
Appl. No. 17/757,863
Filed by Hanon Systems, Daejeon (KR)
PCT Filed Mar. 17, 2021, PCT No. PCT/KR2021/003307
§ 371(c)(1), (2) Date Jun. 22, 2022,
PCT Pub. No. WO2021/194154, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 10-2020-0035216 (KR), filed on Mar. 23, 2020; and application No. 10-2021-0030308 (KR), filed on Mar. 8, 2021.
Prior Publication US 2023/0042489 A1, Feb. 9, 2023
Int. Cl. F04C 29/00 (2006.01); F04C 18/02 (2006.01); F04C 23/00 (2006.01); F04C 27/00 (2006.01); F04C 29/04 (2006.01); F04C 29/12 (2006.01)
CPC F04C 29/042 (2013.01) [F04C 18/0215 (2013.01); F04C 23/008 (2013.01); F04C 27/008 (2013.01); F04C 29/0007 (2013.01); F04C 29/128 (2013.01); F04C 2230/603 (2013.01); F04C 2240/30 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A scroll compressor comprising:
a housing;
a motor provided in 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 compression chambers together with the orbiting scroll,
wherein the housing further comprises:
a center housing penetrated by the rotary shaft;
a front housing configured to define, together with the center housing, a motor accommodation space that accommodates the motor; and
a rear housing configured to define a discharge chamber that accommodates a refrigerant discharged from the compression chambers, and wherein an injection valve assembly is provided between the fixed scroll and the rear housing, and the injection valve assembly further comprises an anti-leakage means and an injection valve configured to open or close an injection flow path that guides the refrigerant, which is introduced from outside of the housing, to the compression chambers,
wherein the injection valve assembly further comprises:
a cover plate coupled to the rear housing and having an inflow port into which the refrigerant is introduced; and
a valve plate coupled to the cover plate and having an outflow port through which the refrigerant introduced through the inflow port is discharged, wherein the anti-leakage means further comprises a gasket retainer interposed between the cover plate and the valve plate, wherein the injection valve is interposed between the cover plate and the gasket retainer and configured to open or close the inflow port, and wherein a valve plate lower surface facing the fixed scroll is spaced apart from the fixed scroll, and the valve plate further includes a protruding portion protruding from the valve plate lower surface toward the fixed scroll and through which the outflow port is formed.