Induction heater having an alternating current conductor

Details Induction heater having an alternating current conductor Induction heater having an alternating current conductor

1985-08-28

1986-12-16

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1051, 219 1061A, 219 1079, H05B 610

Patent

active

046298444

ABSTRACT:
An induction heater has a conductor loop (1) in which a large alternating current is induced by a toroidal primary transformer (8). An annular secondary magnetic core (4) encircles a straight length of the conductor loop (1) and is itself enclosed by inner and outer cylinders (2 and 5) interconnected by annular end plates (6 and 9). The current in the conductor (1) produces magnetic flux in the core (4) which in turn produces axial heating currents in the cylinders (2 and 5). The inner cylinder (5) may have heated fins (3). An alternative embodiment has an inductively heated screw.

REFERENCES:
patent: 2181274 (1939-11-01), Jackson et al.
patent: 2904664 (1959-09-01), Rothacker
patent: 3107268 (1963-10-01), Kraus
patent: 3129459 (1964-04-01), Kullgren et al.
patent: 3154663 (1964-10-01), Halvorsen
patent: 3297811 (1967-01-01), Kugler
patent: 3529116 (1970-09-01), Miyagi
patent: 4039794 (1977-08-01), Kasper
patent: 4145591 (1979-03-01), Takeda
patent: 4238337 (1980-12-01), Peters et al.

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