Patent ID: 9657747
Date: 2017-05-23
CPC Classifications: F04D,H02K

Claim:
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.