Electric heating – Metal heating – Of cylinders
Patent
1986-05-28
1987-07-07
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1065, 219 1079, 366146, 366251, H05B 610
Patent
active
046788816
ABSTRACT:
The simultaneous heating and mixing of a fluid in a vessel with heated walls and a stirring device can lead to excessively high temperatures at the walls due to the formation of a thick boundary layer. This specification discloses a stirring paddle incorporating a heated element and mounted on a rotatable shaft. The heating element is connected in series with a rotor winding mounted on the shaft so that, when the shaft rotates, a heating current flows through the heating element.
REFERENCES:
patent: 2549362 (1951-04-01), Bessiere et al.
patent: 3127155 (1964-03-01), Geffcken
patent: 3936625 (1976-02-01), Burnett
patent: 4090054 (1978-05-01), Heine et al.
patent: 4238337 (1980-12-01), Peters et al.
patent: 4484049 (1984-11-01), Ahner et al.
Leung Philip H.
The Electricity Council
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