Independent redundant force motor

Details Independent redundant force motor Independent redundant force motor

1990-01-30

1991-01-29

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 29, 310184, 335230, H02K 134, H01F 708

Patent

active

049889079

ABSTRACT:
A force motor having four magnetic lanes arranged annularly around an axially movable central shaft, where the shaft is connected to an armature which also moves axially with the shaft within a gap located between two coils forming each lane of the motor. The four magnetic lanes are electrically and magnetically independent and provide three levels of safety-redundancy in case of coil failure.

REFERENCES:
patent: 4040445 (1977-08-01), McCormick
patent: 4434389 (1984-02-01), Langley et al.
patent: 4550267 (1985-10-01), Vaidya
patent: 4631430 (1986-12-01), Aubrecht
patent: 4682135 (1987-07-01), Yamakawa
patent: 4710656 (1987-12-01), Studer
patent: 4796664 (1989-01-01), Toews
patent: 4847581 (1989-07-01), Mohler

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