Glow plug for use in diesel engine

Electric heating – Heating devices – Resistive element: igniter type

Patent

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Details

123145A, 219523, 219553, 361266, 338 22R, 338299, F23Q 722

Patent

active

045490716

ABSTRACT:
In a glow plug for use in a diesel engine of the type comprising a first helical heating member, a second helical heating member connected to the first heating member and made of material having larger positive resistance temperature coefficient than that of the first heating member, and a sheath enclosing the first and second heating members, the ratio between the length of the first heating member and the sheath diameter is selected to be less than 1.5, and the resistance ratio at normal temperature of the first and second heating members is selected to lie in a range of from 2.5 to 7.0.

REFERENCES:
patent: 4211204 (1980-07-01), Glauner et al.
patent: 4423309 (1983-12-01), Murphy et al.

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