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System and method of adjusting the equilibrium temperature of an inductively-heated susceptor

United States Patent

February 24, 2015
View the Complete Patent at the US Patent & Trademark Office
A system for inductively heating a workpiece may include an induction coil, at least one susceptor face sheet, and a current controller coupled. The induction coil may be configured to conduct an alternating current and generate a magnetic field in response to the alternating current. The susceptor face sheet may be configured to have a workpiece positioned therewith. The susceptor face sheet may be formed of a ferromagnetic alloy having a Curie temperature and being inductively heatable to an equilibrium temperature approaching the Curie temperature in response to the magnetic field. The current controller may be coupled to the induction coil and may be configured to adjust the alternating current in a manner causing a change in at least one heating parameter of the susceptor face sheet.
Matsen; Marc R. (Seattle, WA), Negley; Mark A. (Bellevue, WA), Geren; William Preston (Shoreline, WA)
The Boeing Company (Chicago, IL)
13/ 305,297
November 28, 2011
STATEMENT RE: FEDERALLY SPONSORED RESEARCH/DEVELOPMENT This invention was made with Government support under contract number DE-FG36-08GO18135 awarded by the United States Department of Energy. The government has certain rights in this invention.