US 11,767,844 B2
Fixed scroll disk and scroll compressor having the same
Jiangbo Lin, Tianjin (CN); and Xiaokun Ji, Tianjin (CN)
Assigned to Danfoss (Tianjin) Ltd., Tianjin (CN)
Filed by Danfoss (Tianjin) Ltd., Tianjin (CN)
Filed on Aug. 30, 2021, as Appl. No. 17/461,276.
Claims priority of application No. 202010901176.X (CN), filed on Aug. 31, 2020; and application No. 202021863545.2 (CN), filed on Aug. 31, 2020.
Prior Publication US 2022/0065245 A1, Mar. 3, 2022
Int. Cl. F04C 18/02 (2006.01); B33Y 80/00 (2015.01); F04C 2/02 (2006.01); F04C 29/12 (2006.01)
CPC F04C 18/0253 (2013.01) [B33Y 80/00 (2014.12); F04C 18/0246 (2013.01); F04C 18/0261 (2013.01); F04C 2/025 (2013.01); F04C 18/0215 (2013.01); F04C 29/12 (2013.01); F04C 2230/10 (2013.01); F04C 2230/20 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A fixed scroll for scroll compressor, the fixed scroll comprising:
an end plate;
a fixed scroll wrap protruding from one surface of the end plate;
a plurality of internal cavities formed in the end plate arranged around an axis of the end plate;
discharge holes formed in the end plate and communicating the plurality of internal cavities with an environment external to the fixed scroll, which are configured to discharge material from the plurality of internal cavities during a manufacturing process; and
a port formed in the end plate,
wherein the plurality of internal cavities comprise two first internal cavities adjacent to the port and a plurality of second internal cavities arranged between the two first internal cavities in a circumferential direction, and
wherein the discharge holes comprise:
first communication holes which are located between and communicate the first internal cavity and the second internal cavity adjacent to each other, and which are located between and communicate two adjacent second internal cavities, and a second communication hole which communicates the two first internal cavities with the port.