US 12,140,147 B2
Scroll compressor with engineered shared communication port
Joseph E. Ziolkowski, Jr., Onalaska, WI (US); and Eric S. Mlsna, Cashton, WI (US)
Assigned to TRANE INTERNATIONAL INC., Davidson, NC (US)
Filed by TRANE INTERNATIONAL INC., Davidson, NC (US)
Filed on Sep. 18, 2023, as Appl. No. 18/469,249.
Application 18/469,249 is a continuation of application No. 17/491,159, filed on Sep. 30, 2021, granted, now 11,761,446.
Prior Publication US 2024/0084801 A1, Mar. 14, 2024
Int. Cl. F04C 29/12 (2006.01); F01C 1/02 (2006.01); F04C 18/02 (2006.01); F04C 23/00 (2006.01)
CPC F04C 29/12 (2013.01) [F01C 1/0253 (2013.01); F04C 18/0253 (2013.01); F04C 18/0261 (2013.01); F04C 18/0215 (2013.01); F04C 23/008 (2013.01); F04C 2240/80 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An asymmetric scroll compressor comprising:
a compressor housing;
an orbiting scroll member and a non-orbiting scroll member disposed within the compressor housing, the orbiting scroll member and the non-orbiting scroll member each include a baseplate and a wrap extending from the baseplate, the orbiting scroll member and the non-orbiting scroll member intermeshed to form a plurality of compression pockets;
a driveshaft coupled to the orbiting scroll member and configured to orbit the orbiting scroll member from a first orbital position to a second orbital position;
a communication port disposed in a porting envelope, the porting envelope defined by an overlapping area from relative orbital movements of a first enclosed pocket and a second enclosed pocket of the plurality of compression pockets, the communication port including an inner side having a contour matching a contour of an inner side of the porting envelope and an outer side having a contour matching a contour of an outer side of the porting envelope, the inner side and the outer side being opposite sides of the communication port, the inner side of the communication port and the inner side of the porting envelope being closer to the driveshaft than the outer side of the communication port and the outer side of the porting envelope, respectively, such that:
in the first orbital position, the communication port communicates with the first enclosed pocket of the plurality of compression pockets, and
in the second orbital position, the communication port communicates with the second enclosed pocket of the plurality of compression pockets, wherein the orbiting scroll member has an intermediate orbital position between the first orbital position and the second orbital position such that:
in the intermediate orbital position, the communication port communicates with both the first enclosed pocket and the second enclosed pocket, wherein the communication port outlet spans across the wrap of the orbiting scroll member to extend onto both the first enclosed pocket and the second enclosed pocket.