Electric heating – Heating devices – Combined with diverse-type art device
Patent
1981-10-09
1984-12-18
Bartis, A.
Electric heating
Heating devices
Combined with diverse-type art device
123549, F02M 3112, H05B 312
Patent
active
044892322
ABSTRACT:
An apparatus for heating the fuel mixture of an internal combustion engine includes a cylindrical heating body, adapted to form a passageway between a fuel supply and an internal combustion engine, having a double walled structure formed by spaced inner and outer metallic cylinders. A plurality of plate-like ceramic heating elements having a positive temperature coefficient (PTC) of electrical resistance are inserted between the inner and outer cylinders and are urged into contact with the inner cylinder by a resilient spring member. The cylindrical heating body is sealed by welding, brazing, caulking or packing to form a gas-tight chamber enclosing the ceramic heating elements and isolating them from degradation by the fuel mixture. The cylindrical body is provided with an air hole communicating the chamber with an ambient air vent passage formed in an insulator member attached to the body thereby connecting the interior of the chamber and the ceramic heating elements therein to an external air supply.
REFERENCES:
patent: 4313413 (1982-02-01), Miyoshi
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patent: 4361125 (1982-11-01), Igashira et al.
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patent: 4366798 (1983-01-01), Goto et al.
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patent: 4390000 (1983-06-01), Igashira et al.
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Wada Shigetaka
Yamada Toshio
Bartis A.
NGK Insulators Ltd.
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