Electric heating – Metal heating – Of cylinders
Patent
1974-08-22
1976-09-14
Reynolds, Bruce A.
Electric heating
Metal heating
Of cylinders
219 1079, H05B 504
Patent
active
039808580
ABSTRACT:
An exciter for an induction heating apparatus comprises a central magnetic pole and a plurality of peripheral magnetic poles, a yoke for connecting the magnetic poles and excitation windings wound on the magnetic poles, wherein the first excitation circuit is formed by the excitation winding wound on the central magnetic pole and the second excitation circuit is formed by the excitation windings wound on the peripheral magnetic poles and such are excited by an excitation current having a phase difference of between 70.degree. and 110.degree..
REFERENCES:
patent: 2001219 (1935-05-01), Shaw
patent: 3382311 (1968-05-01), Rydinger et al.
patent: 3530499 (1970-09-01), Schroeder
patent: 3836744 (1974-09-01), Taketo et al.
patent: 3906181 (1975-09-01), Hibino et al.
Mitsubishi Denki & Kabushiki Kaisha
Reynolds Bruce A.
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