Active magnetic seal

Details Active magnetic seal Active magnetic seal

1990-05-23

1991-11-12

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 2, 277 28, 277 53, F16J 900

Patent

active

050642057

ABSTRACT:
An active magnetic seal for controlling leakage from turbine shafts or other rotating equipment by the inclusion of circumferential electromagnet windings forming a dynamically controllable magnetic gap between the axial borders of rotor and stator elements.

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patent: 4669735 (1987-06-01), Sundberg et al.
patent: 4671679 (1987-06-01), Hesmat
patent: 4722534 (1988-02-01), Wentworth
Power Engineering/Jan. 1990, "Magnetic Bearings Can Increase Availability, Reduce O&M Costs", Gray et al.

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