Rotary driving device used for rotary actuator

Details Rotary driving device used for rotary actuator Rotary driving device used for rotary actuator

1985-11-19

1987-09-01

Salce, Patrick R.

Electrical generator or motor structure

Dynamoelectric

Rotary

25112911, 335272, H02K 3300

Patent

active

046911359

ABSTRACT:
A rotary driving device includes a pair of stator magnetic poles having opposing end faces separated by gaps; a rotor of magnetic material rotatably supported inside the stator magnetic pole pair, having two pole surfaces between two planes parallel with the axis of rotation; and an excitation coil of the stator magnetic pole pair. The angular positions of the gaps between the end faces of the stator magnetic pole pair along the circumferential direction are changed along the axial direction, so that output and detent torques are obtained effectively and satisfactorily.

REFERENCES:
patent: 2718614 (1955-09-01), Gamble
patent: 2767357 (1956-10-01), Naybor
patent: 4577832 (1986-03-01), Sogabe
U.S. patent application Ser. No. 704031, "Rotary Driving Apparatus", filed on Feb. 21, 1985.

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