Electric heating – Heating devices – Combined with diverse-type art device
Patent
1981-03-30
1983-12-06
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
123548, 123549, 123557, 219275, 219505, 219539, 219540, 219541, 338 22R, 338328, H05B 302, F02M 3112, H01C 702
Patent
active
044195648
ABSTRACT:
A self regulating heater for use in an early fuel evaporation (EFE) system for an automotive engine includes a thermally conductive thick metal radiator body having a heat receiving side an opposite side provided with a plurality of heat-disturbing fins for transferring heat to a fuel heating zone. A plurality of self-regulating ceramic electrical resistance having a positive temperature coefficient of resistivity (PTC) each have a first side bonded by an electrically and thermally conductive adhesive to a first side of a thin thermally and electrically conductive metal plate. The plate has a limited portion thereof secured, for example, by a screw, in electrically conductive relation to the radiator body with the opposite side of the thin plate in closely spaced, facing, heat-transfer relation to the heat receiving side of the radiator body. Coil springs engage the opposite side of each of the discs to connect the heater discs in an electric circuit for energizing the discs to supply heat to the radiator body. A thermally conductive filler material is disposed in the space between the opposite side of the plate and the radiator body to enhance heat transfer to the body. A thermally conductive cover cooperates with the body to enclose the heater discs and a thermally conductive, electrically insulating compound fills the space between the cover and body to improve heat transfer from both sides of the discs to the radiator body. The thin plate permits the heater discs to move relative to the radiator body during thermal expansion and contraction of the body.
REFERENCES:
patent: 3748439 (1973-07-01), Ting et al.
patent: 3995141 (1976-11-01), Vieau et al.
patent: 3996447 (1976-12-01), Bouffard et al.
patent: 4121088 (1978-10-01), Doremus et al.
patent: 4246880 (1981-01-01), Henke
patent: 4325344 (1982-04-01), Igashira et al.
patent: 4347826 (1982-09-01), Nomura et al.
patent: 4368380 (1983-01-01), Igashira et al.
Bartis A.
Haug John A.
McAndrews James P.
Sharp Melvin
Texas Instruments Incorporated
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