Electric heating – Heating devices – Combined with diverse-type art device
Patent
1978-09-05
1980-06-17
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
1231425E, 219306, 219322, 219328, 337380, F02N 1704, F24H 110, H05B 102, H05B 382
Patent
active
042085705
ABSTRACT:
An automobile engine coolant heater for connection to hoses of the engine coolant systems has a elongated cylindrical jacket portion defining a coolant flow path from an inlet at one end to an outlet at the other end. A metal sheathed heating element is located within the flow path and includes elongated heat generating leg portions. A thermostat for regulating operation of the heating element is mounted in heat conductive relationship on a flattened exterior portion of the jacket. An elongated, open ended metallic heat transfer tube provides a thermal bridge between the heating element leg portions and the interior surface of the flattened portion of the jacket. The heat transfer tube and heating element legs are in axial alignment with the longitudinal axis of the jacket to minimize flow resistance through the flow path. The heat transfer tube is brazed to the leg portions and to the flattened portion. When operated without the heating element being immersed, the heat transfer tube dissipates heat from the heating element so as to prevent element burnout, reduces the time lag before cut-out temperature is reached by the thermostat and renders the thermostat much less susceptible to variations in ambient temperature.
REFERENCES:
patent: 2266216 (1941-12-01), Kimberlin
patent: 2574929 (1951-11-01), McClain
patent: 2802921 (1957-08-01), Miklas
patent: 3104306 (1963-09-01), Markley
patent: 3276599 (1966-10-01), Them
patent: 3626148 (1971-12-01), Woytowich et al.
patent: 3715567 (1973-02-01), Mandziak
patent: 3883717 (1975-05-01), Del Percio
patent: 4041433 (1977-08-01), Watson
Bartis A.
Canadian General Electric Company Limited
Eckersley Raymond A.
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