Fuel filter heating assembly

Details Fuel filter heating assembly Fuel filter heating assembly

1975-08-06

1978-05-23

Bartis, A.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

123122E, 165134, 210184, 210440, 219201, 219202, 219306, 219308, 219331, 219381, 219505, H05B 102, F24H 110, B01D 3518, F02M 3112

Patent

active

040912655

ABSTRACT:
A solid state fuel heater unit for use in heating the fuel flow in a fuel filter is disclosed which unit includes a heat conducting ring having a power transistor mounted thereon and driving a power resistor mounted therewithin. Circuitry for controlling the operation of the power transistor, including a thermistor, is mounted within the ring by means of component sealant or potting material which isolates the thermistor from direct transfer of heat thereto from the power transistor and power resistor. The heater unit is adapted to be immersed in the flow of fuel in a fuel filter with the axis of the ring substantially parallel to the fuel flow through the filter.

REFERENCES:
patent: 564657 (1896-07-01), Stiebel
patent: 1806701 (1931-05-01), Moreton
patent: 2103434 (1937-12-01), Pennebaker
patent: 2302489 (1942-11-01), Brown
patent: 2429321 (1947-10-01), LaBrecque
patent: 3243572 (1966-03-01), Vogt et al.
patent: 3320407 (1967-05-01), Holmes
patent: 3333086 (1967-07-01), Williams
patent: 3393870 (1968-07-01), Jeffrey
patent: 3413438 (1968-11-01), Gardner et al.
patent: 3517162 (1970-06-01), Webb

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