LAMINATED GENERATOR ROTOR STRUCTURE AND RELATED METHOD
First Claim
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1. A rotor comprising:
- a rotor body including a lamination stack, the stack including a plurality of stacked laminations, each lamination having a first thickness, each lamination further having a plurality of radially extending slots arranged about a circumference of each of the plurality of laminations;
a first end flange member located on a first end of the lamination stack;
a second end flange member located on a second end of the lamination stack;
at least one stud member passing longitudinally through at least one hole in the lamination stack, the first end flange member, and the second end flange member,a first fastener affixed to a first end of each of the at least one stud member;
a second fastener affixed to a second end of each of the at least one stud member;
the first fastener and the second fastener providing a compression to the laminated stack; and
a plurality of coils positioned within the plurality of slots.
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Abstract
A laminated generator rotor structure and a related method for repairing a rotor using a laminated rotor structure are disclosed. In an embodiment, the rotor body includes a stack of laminated plates flanked by end flange members, and placed in compression by at least one stud member passing through the laminated stack and secured by at least one fastener.
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Citations
20 Claims
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1. A rotor comprising:
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a rotor body including a lamination stack, the stack including a plurality of stacked laminations, each lamination having a first thickness, each lamination further having a plurality of radially extending slots arranged about a circumference of each of the plurality of laminations; a first end flange member located on a first end of the lamination stack; a second end flange member located on a second end of the lamination stack; at least one stud member passing longitudinally through at least one hole in the lamination stack, the first end flange member, and the second end flange member, a first fastener affixed to a first end of each of the at least one stud member; a second fastener affixed to a second end of each of the at least one stud member; the first fastener and the second fastener providing a compression to the laminated stack; and a plurality of coils positioned within the plurality of slots. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electric machine comprising:
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a rotor including; a rotor body including a lamination stack, the stack including a plurality of stacked laminations, each lamination having a first thickness, each lamination further having a plurality of radially extending slots arranged about a circumference of each of the plurality of laminations; a first end flange member located on a first end of the lamination stack, a second end flange member located on a second end of the lamination stack, at least one stud member passing longitudinally through at least one hole in the lamination stack, the first end flange member, and the second end flange member, a first fastener affixed to a first end of each of the at least one stud member, at least a second fastener affixed to a second end of each of the at least one stud member, the first and second fasteners providing a compression to the laminated stack, a plurality of coils positioned within the plurality of slots; and a stator surrounding the rotor. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A method comprising:
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removing a first end portion of a rotor body; affixing at least one stud member to a first end of the rotor body; providing a plurality of laminations, each lamination having at least one hole in the lamination; stacking the laminations on a first end of the rotor body, including passing the at least one stud member through the at least one hole in the plurality of laminations, the stacking further including forming a laminated stack having a length equal to a length of the first portion of the rotor; placing an end flange member adjacent to the laminated stack, including passing the at least one stud member through at least one hole in the end flange member; placing a spacer member adjacent to the end flange member, including passing the at least one stud member through at least one hole in the spacer member; fastening the laminations, the end flange member, and the spacer member onto the at least one stud member with at least one fastener; compressing the laminated stack, including tightening the at least one fastener. - View Dependent Claims (19, 20)
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Specification