Dual line ceramic glow plug

Details Dual line ceramic glow plug Dual line ceramic glow plug

1985-04-12

1987-04-28

Bartis, Anthony

Electric heating

Heating devices

Resistive element: igniter type

123145A, 219267, 219541, 219553, 361264, F23Q 700, F02P 1902, H05B 300

Patent

active

046616861

ABSTRACT:
A dual line ceramic glow plug uses a ceramic heater as an incandescent body which protrudes from the bottom of a metal fitting and which is made of an incandescent wire of a refractory metal embedded in a sintered ceramic powder. The bare ends of the incandescent wire terminate in a pair of metal terminal fittings secured to the end of the ceramic heater within the metal fitting. Electrical leads protruding from the terminal fittings are welded to a pair of terminal electrodes projecting outwardly from the top of the metal fitting. The ceramic heater is held in position by a metal sheath that is slipped over and bonded to the middle portion of said heater. The middle portion of the ceramic heater is brazed to the inner surface of the metal sheath in electrically insulated relation thereto with an intervening glass layer formed on the outer surface of the ceramic heater.

REFERENCES:
patent: 4401065 (1983-08-01), Minegishi et al.
patent: 4425692 (1984-01-01), Minegishi et al.
patent: 4466391 (1984-08-01), Page
patent: 4499366 (1985-02-01), Yoshida et al.
patent: 4502430 (1985-03-01), Yokoi et al.
patent: 4563568 (1986-01-01), Takizawa

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