Transverse flux electric inductors
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United States of America Patent
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Apr 28, 2009
Grant Date -
Aug 23, 2007
app pub date -
Feb 22, 2007
filing date -
Feb 22, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus and process are provided for inductively heating a workpiece to a desired cross sectional temperature. At least one pair of coils form a transverse flux inductor. The workpiece is located between the pair of opposing coils, which are oriented across the cross section of the workpiece. Each coil comprises a plurality of coil sections. The distance between one or more opposing coil sections is adapted to achieve the desired cross sectional induction heating temperature profile in the workpiece. Alternatively the distance between all opposing coil sections are equidistant from each other, and one or more flux concentrators, moveable at least in a direction perpendicular to the surface of the workpiece, can be used to achieve the desired cross sectional induction heating temperature profile in the workpiece.
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