Method of applying containment shroud on permanent magnet rotors

Details Method of applying containment shroud on permanent magnet rotors Method of applying containment shroud on permanent magnet rotors

1983-11-03

1988-07-26

Echols, P. W.

Metal working

Method of mechanical manufacture

Electrical device making

29446, 29736, H02K 1502

Patent

active

047591161

ABSTRACT:
A method of applying a pre-tensioned, metal containment shroud to a rotor of a permanent magnet machine where pressure is applied to the inside of the shroud to stretch it so that the rotor may be inserted. This pressurization can also be used to size the shroud if the yield strength of the containment shroud is exceeded during the stretching process. The containment cylinder is proportioned such that on the removal of the pressure, the cylinder will have the required tension to clamp the permanent magnets to the rotor.

REFERENCES:
patent: 2498357 (1950-02-01), Breisch
patent: 2645004 (1953-07-01), Dorner
patent: 2721601 (1955-10-01), Spencer
patent: 3138859 (1964-06-01), Edwards
patent: 3139677 (1964-07-01), Goldstein
patent: 3846901 (1974-11-01), Lovett
patent: 4126933 (1978-11-01), Anderson et al.
patent: 4296544 (1981-10-01), Burgmeier et al.

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