Levitation device

Details Levitation device Levitation device

1997-03-06

2000-10-03

Tudor, Harold J.

Electrical generator or motor structure

Dynamoelectric

Rotary

104293, 248636, 248638, 310 51, H02K 709, H02K 524, B60L 1300, F16M 700

Patent

active

061277576

ABSTRACT:
An electromagnetic levitation device comprises an electromagnet (12) which is supported by a structure (13) and is arranged to attract armature (10) carried by another structure (11). Current to the electromagnet (12) is regulated by a control device (16) to ensure that the electromagnetic force exerted by the electromagnet (12) on the armature (10) is sufficient to cause and maintain levitation of the structures (11, 13) at a desired spacing (A in FIG. 1). A decoupling device (17) is arranged between the armature (10) and the structure (11) to accommodate a shock load (L) which reduces the flux gap (15) to zero and decouples the armature (10) from its support structure (11) by moving the stop (20) away from the structure (11). This significantly increases the extent of shock loading that can be tolerated before damage will be incurred.

REFERENCES:
patent: 4624435 (1986-11-01), Freudenberg
patent: 5011108 (1991-04-01), Chen et al.
patent: 5387851 (1995-02-01), Nuscheler et al.
patent: 5609230 (1997-03-01), Swinbanks
patent: 5631617 (1997-05-01), Morishita

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