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US 2019/0103786 A1Published application
Method and apparatus for cooling an rotor assembly
AssigneeGE Aviation Systems LLC
InventorsMohammad Khaja Mohiddin Shaik, David Raju Yamarthi, Balamurugan Sridharan, Anirban Chatterjee, Prateek Jalan
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Abstract
A method and apparatus for cooling a rotor assembly includes a rotor core having a rotatable shaft and defining at least one rotor post, a winding wound around the post, and at least one coolant conduit supported by the rotor core and in a thermally conductive relationship with a portion of the winding.
Claims20
A rotor assembly for an electric machine comprising:
- a rotor core having a rotatable shaft and defining at least one rotor post;
- a winding wound around the post;
- a first coolant conduit supported by the rotor core extending axially along the post underlying the winding, and wherein least one face of the first coolant conduit is in a thermally conductive relationship with an underlying portion of the windings;
- and
- a second coolant conduit supported by the rotor core extending axially along the post overlying the winding, and wherein least one face of the second coolant conduit is in a thermally conductive relationship with an overlying portion of the winding;
- wherein heat from the winding is transferred by conduction to the first and the second coolant conduits.
3 more elements
A rotor assembly for an electric machine comprising:
- a rotor core having a rotatable shaft and defining at least one rotor post;
- a set of rotor windings wound around the post;
- a first coolant conduit supported by the rotor core extending axially along the post radially underlying the set of rotor windings, and wherein least one face of the first coolant conduit is in a thermally conductive relationship with a bottom portion of the set of rotor windings;
- and
- a second coolant conduit supported by the rotor core extending axially along the post radially overlying the set of rotor windings, and wherein least one face of the second coolant conduit is in a thermally conductive relationship with a top portion of the set of rotor windings;
- wherein the set of rotor windings include a set of radial through-openings fluidly connecting the first cooling conduit with the second coolant conduit.
3 more elements
A method of cooling a rotatable electric machine rotor, comprising:
- receiving a fluid coolant flow to a first coolant conduit extending axially along an underlying portion of a set of rotor windings, wherein least one face of the first coolant conduit is in a thermally conductive relationship with the underlying portion of the set of rotor windings;
- and
- delivering the fluid coolant flow to a second coolant conduit extending axially along an overlying portion of the set of rotor windings, and wherein least one face of the second coolant conduit is in a thermally conductive relationship with the overlying portion of the windings, and fluidly connected with the first coolant conduit by a set of radial openings through the set of windings;
- wherein the fluid coolant flow removes heat from the rotor.
1 more element
Dependencies are inferred from the claim text.