Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1985-05-22
1985-12-03
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310 62, 310156, 310162, 310211, H02K 1600
Patent
active
045568090
ABSTRACT:
Three rotors disposed in axial succession on a common shaft are mounted to cooperate with a common stator having an annular laminated core coaxial with the shaft on which a three-phase stator winding is wound. The rotors are of two kinds, the middle one being of one kind and the outer ones of the other kind. These two kinds of rotors are, namely, the laminated core kind having a short-circuited squirrel cage conductor system and the synchronous having shell-shaped or ring-shaped permanent magnets mounted on a soft iron yoke which is in turn carried by a pierced hub of nonmagnetizable material. The squirrel cage rotor or rotors provide high starting torque, and the synchronous rotors provide good synchronous torque and a synchronous nominal speed. When the synchronous rotor is in the middle, the stator core may be subdivided into three parts to facilitate cooling.
REFERENCES:
patent: 2047831 (1936-07-01), Lund
patent: 3614496 (1971-10-01), Schietart
patent: 3732448 (1973-05-01), Schiethart
patent: 3979619 (1976-09-01), Whiteley
patent: 4104552 (1978-08-01), Tsergas
patent: 4196366 (1980-04-01), Schiethardt
patent: 4362959 (1982-12-01), Bartheld
Beisse Achim
Harer Helmut
Mohr Adolf
Schustek Siegfried
Robert & Bosch GmbH
Skudy R.
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