US 11,703,052 B2
High pressure scroll compressor
Yang Hee Cho, Suwon-si (KR); and Moo Seong Bae, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Appl. No. 17/311,443
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
PCT Filed Oct. 28, 2019, PCT No. PCT/KR2019/014301
§ 371(c)(1), (2) Date Jun. 7, 2021,
PCT Pub. No. WO2020/116781, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 10-2018-0155897 (KR), filed on Dec. 6, 2018.
Prior Publication US 2022/0025884 A1, Jan. 27, 2022
Int. Cl. F04C 18/02 (2006.01); F04C 28/26 (2006.01); F04C 29/12 (2006.01); F04C 23/00 (2006.01); F04C 27/00 (2006.01)
CPC F04C 18/0215 (2013.01) [F04C 18/0261 (2013.01); F04C 23/008 (2013.01); F04C 27/005 (2013.01); F04C 28/26 (2013.01); F04C 29/12 (2013.01); F04C 29/124 (2013.01); F04C 29/126 (2013.01); F04C 2240/20 (2013.01); F04C 2240/30 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A high-pressure scroll compressor comprising:
a main body;
a fixed scroll fixed inside the main body and comprising a fixed body, a fixed wrap provided in the fixed body and a discharge port through which a high-pressure refrigerant is discharged;
an orbiting scroll engaged with the fixed scroll to perform a relative orbiting motion, and comprising an orbiting body and an orbiting wrap provided to be engaged with the fixed wrap to form a compression chamber;
a main frame fixed inside the main body so as to be located under the orbiting scroll and comprising a back pressure chamber filled with an intermediate-pressure refrigerant;
a bypass portion provided in plural on an upper surface of the fixed body of the fixed scroll and configured to selectively bypass a refrigerant of the compression chamber to a space inside the main body;
a back pressure chamber discharge portion configured to selectively discharge the refrigerant of the back pressure chamber to the space inside the main body and disposed radially spaced apart from the bypass portion, the back pressure chamber discharge portion comprising a back pressure chamber discharge valve provided on the upper surface of the fixed body of the fixed scroll, a back pressure groove recessed in a lower surface of the fixed body of the fixed scroll in contact with an upper surface of the orbiting body of the orbiting scroll, and a back pressure chamber discharge flow path provided to pass through the fixed body of the fixed scroll and to allow the back pressure groove to communicate with the back pressure chamber discharge valve; and
a back pressure hole provided in the orbiting body of the orbiting scroll,
wherein the back pressure hole comprises a first back pressure hole provided to allow the compression chamber to communicate with the back pressure chamber, and a second back pressure hole provided to branch from the first back pressure hole and extending to the upper surface of the orbiting body of the orbiting scroll to allow the first back pressure hole to communicate with the back pressure groove.