Hermetic motor cooling system
AssigneeTyco Fire & Security GmbH
InventorTyler Alexander Wolgemuth
Life of this patent
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Abstract
A system for cooling a hermetic motor includes a housing of the hermetic motor that is configured to be disposed along a motor cooling refrigerant flow path. The housing is configured to surround at least a portion of a stator of the hermetic motor and includes an annular cavity configured to receive refrigerant from a refrigerant loop. The system also includes a sleeve configured to be positioned between the annular cavity and the stator, where the sleeve includes a plurality of discharge ports oriented generally parallel to a central axis of the stator. The plurality of discharge ports is configured to discharge the refrigerant from the annular cavity toward the stator.
Claims20
A system for cooling a hermetic motor, comprising:
- a housing of the hermetic motor configured to be disposed along a motor cooling refrigerant flow path, wherein the housing includes an annular cavity configured to receive refrigerant from a refrigerant loop, and wherein the housing is configured to surround at least a portion of a stator of the hermetic motor;
- and
- a sleeve configured to be positioned between the annular cavity and the stator, wherein the sleeve includes a plurality of discharge ports, wherein at least one discharge port of the plurality of discharge ports comprises a first portion extending in a direction along a central axis of the stator and a second portion extending from the first portion to the annular cavity, wherein the plurality of discharge ports is configured to discharge the refrigerant from the annular cavity toward the stator.
A method, comprising:
- directing, via a compressor, a refrigerant flow along a refrigerant loop, wherein the compressor is driven by a hermetic motor;
- diverting a portion of the refrigerant flow from the refrigerant loop into an annular cavity formed within a housing of the hermetic motor, wherein the housing surrounds at least a portion of a stator of the hermetic motor, and wherein a sleeve is positioned radially between the annular cavity and the stator;
- and
- directing, via a plurality of discharge ports formed in the sleeve, an amount of the portion of the refrigerant flow from the annular cavity toward the stator, wherein at least one discharge port of the plurality of discharge ports comprises a first portion extending in a direction along a central axis of the stator and a second portion extending from the first portion to the annular cavity.
A hermetic motor, comprising:
- a housing disposed about a stator of the hermitic motor and comprising an annular cavity formed therein and configured to receive a refrigerant from a refrigerant loop;
- and
- a sleeve positioned between the annular cavity and the stator, wherein the sleeve comprises a plurality of discharge ports, wherein at least one discharge port of the plurality of discharge ports comprises a first portion extending in a direction along a central axis of the stator and a second portion extending from the first portion to the annular cavity, and wherein the plurality of discharge ports is configured to receive the refrigerant from the annular cavity and to discharge the refrigerant toward the stator.
Dependencies are inferred from the claim text.