High speed induction motor rotor and method of fabrication

Details High speed induction motor rotor and method of fabrication High speed induction motor rotor and method of fabrication

1998-07-14

2000-12-12

Sheehan, John

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148111, H01F 104

Patent

active

061593052

ABSTRACT:
An induction motor rotor comprises a rotor shaft (12), a rotor core (14), which may be solid (114) or may include a plurality of rotor laminations (13), having rotor bar slots (15), a plurality of rotor bars (16) extending through the rotor bar slots, and two rotor end rings (18) brazed to the rotor bars and extending to the rotor shaft, the rotor bars and rotor end rings pre-stressing the rotor core.

REFERENCES:
patent: 4496399 (1985-01-01), Haselkorn
patent: 4601766 (1986-07-01), Rastogi et al.
patent: 4772341 (1988-09-01), Rastogi et al.
Binary Alloy Phase Diagrams, Edited by thaddeus B. Massaiski, vol. 1, p. 19, American Society for Metals (Metals Park, OH, Oct. 1986.
GlidCop Dispersion Strengthened Copper, Published by OMG Americas on an OMG Internet site, updated Apr. 1998.
Permendur 49 published by Goodfellow corp. on a Goodfellow Corporation Internet site referring to catalog dated May 1998, Oct. 1986.
"Experimental Study of High Speed Induction Motor Varying Rotor Core Construction" By M. Ikeda, et al, IEEE Trans On Energy Conversion, vol. 5., No. 1, Mar. 1998, pp. 98-103.
"Brazing Filler Metals" Brazing Handbook, 4th Edition, American Welding Society, 1991, pp. 46 and 57.
"Magnetically Soft Materials", Metals Handbook, 8th Edition, vol. 1, "Properties And Selection Of Metals", American Society Of Metals, pp. 787-788, 1961.

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