Controllable inductor

Details Controllable inductor Controllable inductor

1997-07-18

1999-08-10

Luebke, Renee S.

Inductor devices

With temperature modifier

Ventilating passages

336 59, 336 55, H01F 2708, H01F 2702

Patent

active

059365030

ABSTRACT:
A controllable inductor including a tubular core, a main winding (1) surrounding the core, a control winding running substantially axially to the core and an element (3) surrounding the core and arranged to support the main winding wound outside thereof in radial layers. The element includes means arranged to provide channels (19) partly defined by the radially inner turn of the main winding. Said channels are communicating with spacings between said layers (2). A member is arranged to generate a flow of air in the channels and through the spacings of the layers for cooling the main winding.

REFERENCES:
patent: 1304257 (1919-05-01), Brand
patent: 2459322 (1949-01-01), Johnston
patent: 2751562 (1956-06-01), Camilli et al.
patent: 2942213 (1960-06-01), Camilli et al.
patent: 3775719 (1973-11-01), Gainer et al.

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