CPC F04D 29/284 (2013.01) [F04D 17/10 (2013.01); F25B 1/005 (2013.01); F25B 1/04 (2013.01); F25B 25/005 (2013.01); F25B 31/02 (2013.01); F25B 2339/047 (2013.01); F25B 2400/23 (2013.01)] | 20 Claims |
1. A compressor for a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system, comprising:
an impeller, comprising:
a hub defining an impeller tip;
a plurality of blades coupled to the hub, wherein the plurality of blades defines a plurality of flow paths configured to direct a primary flow of working fluid therethrough; and
a shroud coupled to the plurality of blades, wherein the shroud comprises a radial shroud tip disposed upstream of the impeller tip relative to a flow direction of the primary flow of working fluid through the plurality of flow paths; and
a vane disposed upstream of the radial shroud tip, wherein the vane is configured to guide a vapor working fluid to flow into the plurality of flow paths, and the vane is separate from the plurality of blades.
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