Glow plug for diesel engine with a U-shaped sialon ceramic heate

Details Glow plug for diesel engine with a U-shaped sialon ceramic heate Glow plug for diesel engine with a U-shaped sialon ceramic heate

1989-04-28

1989-10-17

Bartis, Anthony

Electric heating

Heating devices

Resistive element: igniter type

123145A, 219541, 219553, 338326, 361266, F23Q 722, F02P 1900, H05B 300, H01C 114

Patent

active

048749230

ABSTRACT:
A glow plug for a diesel engine includes a U-shaped ceramic heater of SIALON supported by a hollow metallic holder. The heater has a U-shaped heating portion projecting from one end of the holder and is supported therein by a pair of parallel ceramic lead portions of a thicknesses greater than the heating portion. One lead portion is electrically connected to the interior of the holder and the other lead portion is electrically insulated from the holder and electrically connected to an external connecting terminal extending into the other end of the holder. The lead portions are spaced from each other to define a slit therebetween open to the interior of the holder. A sintered ceramic sheet of SIALON integrally seals the slit against entry of combustion gases into the interior of the holder.

REFERENCES:
patent: 4401065 (1983-08-01), Minegishi et al.
patent: 4475029 (1984-10-01), Yoshida et al.
patent: 4652727 (1987-03-01), Hoshizaki et al.
patent: 4653443 (1987-03-01), Fukazawa et al.

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