MOTOR ROTOR AND AIR GAP COOLING

摘要

A motor cooling system for a simply supported compressor includes a rotor shaft 24 having a first end 26 and a second end 28. The rotor shaft 24 includes an axial bore 60 and a plurality of shaft radial holes 64 extending from a first end of the axial bore 60, wherein a cooling medium is supplied to the axial bore 60. The cooling system further includes a rotor 22 coupled to the rotor shaft 24 and having a plurality of rotor axial holes 25 and a plurality of rotor radial holes 27. The plurality of rotor radial holes 27 extends from the plurality of rotor axial holes 25. A refrigerant dam 70 is arranged adjacent a first end of the rotor 22 and includes a plurality of dam axial holes 74 fluidly coupled to an interior cavity 72. The dam axial holes 74 align with the rotor axial holes 25 and the interior cavity 72 aligns with the shaft radial holes 64 to form a flow path between the rotor shaft 24 and the rotor 22.

主权项

1. A motor cooling system for a simply supported compressor system comprising:
a rotor shaft having a first end and a second end, the rotor shaft including an axial bore and a plurality of shaft radial holes extending from a first end of the axial bore, wherein a cooling medium is supplied to the axial bore; a rotor including a plurality of rotor axial holes and a plurality of rotor radial holes extending from the plurality of rotor axial holes, wherein the rotor is coupled to the rotor shaft; and a refrigerant dam arranged adjacent a first end of the rotor, the refrigerant dam including a plurality of dam axial holes fluidly coupled to an interior cavity, wherein the plurality of dam axial holes are aligned with the plurality of rotor axial holes, and the interior cavity is aligned with the plurality of shaft radial holes such that a flow path is formed between the rotor shaft and the rotor.