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US 2017/0317545 A1Published application
Rotor
AssigneeWittenstein AG
InventorIngolf Gröning
Life of this patent
Estimating the term…
Abstract
Rotor (1) for an electric machine, comprising an outer shell (5) for receiving magnets, and a three-dimensional lattice structure (7) arranged within the outer shell (5).
Claims17
-12. (canceled)
A rotor for an electric machine, comprising
- an outer shell for receiving magnets, and
- a three-dimensional lattice structure arranged within the outer shell,
- wherein the lattice structure is selected from the group consisting of a face-centered cubic, a body-centered cubic, a tetrahedral lattice, a face-centered orthorhombic, a body-centered orthorhombic, and a combination thereof.
A rotor for an electric machine, comprising
- an outer shell for receiving magnets, and
- a three-dimensional lattice structure arranged within the outer shell,
- wherein the lattice structure has a radial extent of at least two unit cells, and
- wherein the lattice structure has an axial extent of at least ten unit cells.
1 more element
A method for producing a rotor comprising an outer shell for receiving magnets, and a three-dimensional lattice structure arranged within the outer shell, wherein the lattice structure is selected from the group consisting of a face-centered cubic, a body-centered cubic, a tetrahedral lattice, and a combination thereof, the method comprising:
- a. providing a carrier;
- b. applying a layer of a metal powder to the carrier;
- c. sintering predetermined regions of the layer of the metal powder;
- d. repeating steps b) and c) several times, wherein the regions are selected in order to create a structure corresponding to the rotor;
- and
- e. removing the structure from the carrier.
3 more elements
Dependencies are inferred from the claim text.