Variable speed AC motor

Details Variable speed AC motor Variable speed AC motor

1987-11-13

1988-07-05

Budd, Mark O.

Electrical generator or motor structure

Dynamoelectric

Rotary

310115, 310122, 318 49, 318730, H02K 1600, H02K 2360

Patent

active

047557001

ABSTRACT:
In a first type of variable speed electric motor, two coaxial shafts are mounted in a housing. Two rotors are mounted on each shaft. Two stators are mounted in the housing. Each of the stators is in operative association with a rotor mounted on a different one of the shafts. The remaining two rotors are in operative association with each other and form a converter motor. In the second type of variable speed electric motor, two parallel shafts are mounted in a housing. A support is mounted for rotation around the first shaft. Two rotors are mounted on the first shaft. A stator is mounted in the housing in operative association with one of the rotors mounted on the first shaft. A third rotor is mounted on the support in operative association with the other rotor mounted on the first shaft. The support is geared to the first shaft through idler gears mounted on the second shaft.

REFERENCES:
patent: 841874 (1907-01-01), De Kando
patent: 912144 (1909-02-01), Mavor
patent: 1480710 (1924-01-01), Fortescue
patent: 1480723 (1924-01-01), Hellmund
patent: 1983896 (1934-12-01), Bottcher
patent: 2061983 (1936-11-01), Rossman
patent: 2087782 (1937-07-01), Rossman
patent: 3026459 (1962-03-01), Moore
patent: 3168665 (1965-02-01), Holper
patent: 3939370 (1976-02-01), Muller

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