Electric heating – Heating devices – Resistive element: igniter type
Patent
1984-09-20
1987-03-17
Bartis, Anthony
Electric heating
Heating devices
Resistive element: igniter type
123145A, 219544, 219553, 361266, H05B 300, F23Q 722, F02P 1900
Patent
active
046509631
ABSTRACT:
A ceramic glow plug includes an unjacketed ceramic heater formed by a coiled heating wire of a high melting point tungsten alloy having a specific resistance of at least 10 .mu. ohms/cm.sup.3 embedded within a sintered ceramic body. The ceramic body has a diameter D of not more than 4.0 mm and is fitted into a hollow metallic cylinder with a tip portion thereof projecting less than three times its diameter D beyond a first axial end of the cylinder. The other end of the metallic cylinder is fitted into a mounting sleeve. The coiled portion of the heating wire is disposed substantially entirely within the projecting tip portion of the ceramic body. A resistor of iron or nickel wire may be positioned in the sleeve and connected in series with the heating wire for inhibiting overheating of the ceramic heater.
REFERENCES:
patent: 2030937 (1936-02-01), Reichmann
patent: 2482551 (1949-09-01), Korsgren
patent: 4211204 (1980-07-01), Glanner et al.
patent: 4345555 (1982-08-01), Oshima et al.
patent: 4357526 (1982-11-01), Yamamoto et al.
patent: 4359977 (1982-11-01), Sperner et al.
patent: 4401065 (1983-08-01), Minegishi et al.
patent: 4423309 (1983-12-01), Murphy et al.
patent: 4425692 (1984-01-01), Minegishi et al.
patent: 4426568 (1984-01-01), Kato et al.
patent: 4476378 (1984-10-01), Takizawa et al.
patent: 4477717 (1984-10-01), Walton
patent: 4502430 (1985-03-01), Yokoi et al.
Bartis Anthony
NGK Spark Plug Co. Ltd.
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