Electric heating – Metal heating – Of cylinders
Patent
1978-08-25
1980-08-12
Reynolds, B. A.
Electric heating
Metal heating
Of cylinders
219 1079, 219 1049R, 60650, 60682, H05B 508, F01D 2508
Patent
active
042174759
ABSTRACT:
Apparatus is provided for transferring heat to fluids by the use of magnets. A first plurality of magnets is mounted in a housing in a pattern having a circular cross section. A second plurality of magnets is mounted in spaced relationship with respect to the first plurality and means are provided for moving one of the plurality of magnets relative to the other. Two concentric conductive members or sleeves of generally cylindrical shape are located in the magnetic field between the two pluralities. The two sleeves form an annular passage extending longitudinally of the magnets through which fluid to be heated is passed. The magnetic field causes the conductive sleeves to be heated by induction and transfer the heat to the fluid in an efficient manner. The inner sleeve preferably has projections extending toward the outer sleeve with longitudinally-extending passages therethrough. The outer sleeve can also have outwardly-extending projections or ridges located between rows of the magnets in the second plurality. Cooling air can be supplied outside both sleeves past the magnets of the two pluralities. This cooling air, now preheated, can be supplied to the inlet of a fluid compressor, the outlet of which communicates with the annular passage between the sleeves to supply the fluid therethrough.
REFERENCES:
patent: 2407562 (1946-09-01), Lofgren
patent: 2484864 (1949-10-01), Strickland, Jr. et al.
patent: 2644881 (1953-07-01), Schorg
patent: 3236052 (1966-02-01), Guin
patent: 3445616 (1969-05-01), Guyer
patent: 3641302 (1972-02-01), Sargeant
patent: 3821508 (1974-06-01), Hagerty
patent: 4036020 (1977-07-01), Bagley
Gutchess, Jr. Allen D.
Hagerty Research & Development Co., Inc.
Leung Philip H.
Reynolds B. A.
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