Glow plug with frustoconical ceramic heating element

Details Glow plug with frustoconical ceramic heating element Glow plug with frustoconical ceramic heating element

2005-02-01

2005-02-01

Jeffery, John A. (Department: 3742)

Electric heating

Heating devices

Resistive element: igniter type

C123S14500A

Reexamination Certificate

active

06849829

ABSTRACT:
A sheathed-element glow plug for starting a thermal combustion process, in particular for starting a self-igniting combustion engine, having a housing, which may be sealingly mounted in a wall of a combustion chamber and accommodates a ceramic heating element that extends into the combustion chamber. The heating element includes a heating conductor, which is connectible to a voltage source and has an electrical resistance, and the electrically conductive cross-section of the heating conductor is smaller in the region of a heating-element tip than an electrically conductive cross-section in the region of a heating-element body. It is proposed that the heating-element tip include at least one frustoconical segment.

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