Glow plug with protective coating

Details Glow plug with protective coating Glow plug with protective coating

1996-03-28

1997-05-06

Jeffery, John A.

Electric heating

Heating devices

Resistive element: igniter type

123145A, 361266, F23Q 700

Patent

active

056267819

ABSTRACT:
Glow plug with a heating rod formed of an inner pole (2) and a glow tube (5), in which a heating element (3) is located which is electrically connected to the inner pole (2). The glow tube (5) is provided with protective coating (6) at least in the area of its tip. The protective coating is selected from the group consisting of materials which include NiCrAlY, CoCrAlY, CoNiCrAlY, NiCrAl, NiCr, NiCrFe and NiCrWCo.

REFERENCES:
patent: 4746896 (1988-05-01), Mcquaid et al.

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