Robert Boschgmbh

Armin Kussmaul

Christoph Kern

Albrecht Geissinger

Andreas Reissner

Pavlo Saltikov

Simon Schmittinger

Karl-Heinz Heussner

Steffen Carbon

Vera Wein

A sheathed-element glow plug for an internal combustion engine, in which the sheathed-element glow plug is arranged or constructed so that it substantially reduces the glow temperature during the heat-up process. The control filament is considerably shortened and has a resistance between 20 m&#x3a9; and 100 m&#x3a9;.

Sheated-element grow plug having a substantially shortened control filament

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.

Electrically heatable glow plug and method for producing said electrically heatable glow plug

Growing community of inventors

Bietigheim-Bissingen, Germany

Armin Kussmaul