Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1997-03-17
1998-11-03
Dougherty, Thomas M.
Electrical generator or motor structure
Dynamoelectric
Rotary
310218, 310261, 310263, H02K 1502, H02K 122
Patent
active
058313680
ABSTRACT:
In one embodiment of the present invention a rotor for an electrical machine comprises a shaft having a radially-reduced portion, the shaft defining an axis of rotation of the rotor. The rotor additionally includes a pole piece having a bore, the pole piece mounted on the shaft for rotation therewith about the axis. Further, the rotor comprises a member located about the shaft in the radially reduced portion and interference fit within the bore of the pole piece. In a second embodiment of the present invention, an electrical machine comprises a rotor which further comprises a shaft defining an axis of rotation of the rotor, a pole piece affixed to the shaft for rotation therewith and a rotor stop slip fit onto the shaft and bearing against the pole piece. The rotor stop also bears against another component of the electrical machine to define an axial position of the rotor within the electrical machine. In another embodiment of the present invention an electrical machine includes a shaft defining an axis of rotation and having a radially-reduced portion. The electrical machine also includes a pole piece affixed to the shaft for rotation therewith about the axis of rotation, the pole piece defining an axial bore therethrough. Further, the electrical machine comprises a member located about the shaft in the radially-reduced portion of the shaft and material from the axial bore displaced into the radially-reduced portion.
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Harris Richard Kenneth
Hatsios Michael John
Rasmussen Duane
York Michael Timothy
Dougherty Thomas M.
Ford Motor Company
Nguyen Tran N.
Sparschu Mark S.
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