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US 12,633,792 B2Granted
Stator cooled electric motor
AssigneeGarrett Transportation I Inc.
InventorsArnaud Gerard, Maxence Lambert, Michel Mosser, Romain Jeannot
Life of this patent
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Abstract
A compressor including an impeller for generating a compressed fluid within a volute, a motor housing having an inlet for receiving the compressed from the volute, an electric motor including a plurality of stator windings, a rotor and a shaft mechanically coupled to the rotor, and a stator insert having a plurality of holes for regulating a flow of the compressed fluid through the plurality of stator windings and restricting a flow of the compressed fluid through a plurality of gaps between the stator windings.
Claims20
A compressor comprising:
- an impeller for generating a compressed fluid;
- a motor housing having an inlet for receiving the compressed fluid;
- an electric motor including a plurality of stator windings, a rotor and a shaft mechanically coupled to the rotor;
- and
- a stator insert having
- a plurality of recessions configured to partially encapsulate respective portions of each stator winding;
- a plurality of protrusions extending into gaps between adjacent stator windings;
- a first plurality of holes disposed at said plurality of recessions, each of the first plurality of holes configured to regulate a flow of the compressed fluid through a corresponding stator winding;
- a second plurality of holes disposed at said plurality of protrusions, each of the second plurality of holes configured to regulate a flow of the compressed fluid through a corresponding gap between adjacent stator windings;
- and
- an extension portion extending between adjacent stator windings and supporting said second plurality of holes, and
- wherein said stator insert further comprises an integrated bearing support for supporting an outer race of a bearing.
9 more elements
A method of cooling an electric motor in a compressor comprising:
- compressing a fluid to generate a compressed fluid;
- and
- regulating a flow of the compressed fluid through a plurality of stator windings and a plurality of gaps between the stator windings by passing the compressed fluid through a stator insert,
- wherein the stator insert comprises a plurality of recessions configured to partially encapsulate respective portions of each stator winding and a plurality of protrusions extending into a plurality of gaps between adjacent stator windings,
- wherein the stator insert includes a first plurality of holes disposed at the recessions and aligned with the stator windings, and a second plurality of holes disposed at the protrusions and aligned with the gaps between the stator windings,
- wherein the stator insert further comprises at least one extension portion that extends between adjacent stator windings and supports at least one of the second plurality of holes, and
- wherein the stator insert comprises an integrated bearing support for supporting an outer race of a bearing.
4 more elements
A compressor comprising:
- an impeller disposed within an impeller housing for compressing a fluid to generate a compressed fluid within a volute;
- a motor housing mechanically coupled to the impeller housing, wherein the motor housing includes an inlet for receiving the compressed fluid from the volute;
- an electric motor having a plurality of stator windings, a rotor and a shaft, wherein the shaft is mechanically coupled to the impeller and the rotor;
- and
- a stator insert disposed between the impeller and the electric motor, the stator insert comprising,
- a plurality of recessions configured to partially encapsulate respective portions of each stator winding;
- a plurality of protrusions extending into gaps between adjacent stator windings;
- a first plurality of holes disposed at said recessions and aligned with the plurality of stator windings;
- a second plurality of holes disposed at said protrusions and aligned with the plurality of gaps between adjacent stator windings;
- an extension portion that extends between adjacent stator windings and supports at least one of the second plurality of holes;
- and
- an integrated bearing support for supporting an outer race of a bearing;
- and
- wherein the stator insert receives the compressed fluid from the inlet and regulates the flow of the compressed fluid through the plurality of stator windings via the first plurality of boles and through the plurality of gaps between the stator windings via the second plurality of boles.
11 more elements
Dependencies are inferred from the claim text.