Stoves and furnaces – Heaters – Frictional
Patent
1980-04-14
1982-01-26
Scott, Samuel
Stoves and furnaces
Heaters
Frictional
122 26, F24C 900
Patent
active
043123228
ABSTRACT:
A heating device has a drive shaft rotated by a motor; the drive shaft is supported by bearings at its ends and has an upstanding key portion running substantially along its length; spacer elements and disc members having mating keyways aligned with the upstanding key of the shaft are alternatively positioned on the shaft between the bearings; a shell member, comprised of two complementary mating sections, encloses the rotating shaft/spacer/disc assembly, allowing for a space between its inside surface and the disc and spacer members; oil is circulated from a reservoir through feeder lines into the shell member to occupy the space, the oil being retained in the shell by an oil seal at the driving end of the shaft and an end plate at the driven end of the shaft; the spinning discs heat the oil, with the oil transferring heat to the shell; the exterior of the shell has adjacent disc sections defining air spaces where the heat radiated from the shell is most intense; the shell is enclosed in an insulated housing and a fan directs an air flow into the housing proximate to the shell molding and upward through the air spaces to carry away the heat.
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patent: 4273075 (1981-06-01), Freihage
Green Randall L.
Scott Samuel
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