Magnetic clutches and couplings with sheaves

Details Magnetic clutches and couplings with sheaves Magnetic clutches and couplings with sheaves

1997-07-22

1999-06-01

Ramirez, Nestor

Electrical generator or motor structure

Dynamoelectric

Rotary

310103, H02K 4900

Patent

active

059090731

ABSTRACT:
A magnetic coupling device has an electroconductive rotor presenting a band of electroconductive material and has a magnet rotor with permanent magnets which may be slide-mounted to move radially outward responsive to centrifugal force in opposition to a spring bias. When the magnet rotor is stationary the magnets are radially inward of the orbit of the electroconductive band, and when the magnets have moved outwardly when the magnet rotor is rotating, the magnets are spaced by an air gap from the electroconductive band so that eddy currents are induced in the band resulting in coupling of the rotors. In the alternative the magnets may be always at least partly opposite the electroconductive band. The electroconductive rotor preferably has two electroconductive bands positioned on opposite sides of the magnet rotor. One or both of the rotors may have sheaves mounted thereon.

REFERENCES:
patent: 5796192 (1998-08-01), Riepl

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