Electric heating – Heating devices – Resistive element: igniter type
Reexamination Certificate
2005-08-16
2005-08-16
Evans, Robin O. (Department: 3742)
Electric heating
Heating devices
Resistive element: igniter type
C123S14500A
Reexamination Certificate
active
06930283
ABSTRACT:
An electrically heatable glow plug and a method for manufacturing an electrically heatable glow plug are proposed that enable a protection of a heating coil of the glow plug against nitridation and evaporation of the aluminum from the heating conductor alloy. The glow plug includes a glow tube that is closed at the end, into which the electrically conductive heating coil is inserted, the heating coil being formed at least partially of aluminum, in particular of an aluminun-iron-chromium alloy. In the glow tube, oxygen donors are provided in order to form an aluminum oxide layer on the surface of the heating coil before or during the heating of the heating coil.
REFERENCES:
patent: 2690491 (1954-09-01), Calvert
patent: 3596057 (1971-07-01), Arntz et al.
patent: 4639712 (1987-01-01), Kobayashi et al.
patent: 6043459 (2000-03-01), Jakobi et al.
patent: 2004/0112893 (2004-06-01), Okuda
patent: 2625752 (1977-12-01), None
patent: 197 56 988 (1997-12-01), None
patent: 199 28 037 (1999-06-01), None
patent: 0 079 385 (1983-05-01), None
patent: 52-108346 (1977-09-01), None
patent: 54-61340 (1979-05-01), None
patent: 2-155186 (1990-06-01), None
patent: 4-123785 (1992-04-01), None
patent: 5-283149 (1993-10-01), None
Carbon Steffen
Kern Christoph
Kussmaul Armin
Reissner Andreas
Evans Robin O.
Kenyon & Kenyon
Patel Vinod
Robert & Bosch GmbH
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