Robert Boschgmbh

Mario Fleischhauer

Jochen Fischer

Detlef Hartmann

Andreas Benz

Manfred Roeckelein

Alexander Schramm

Christoph Naumann

Gabriel Petersen

A spark plug, including a central electrode, a first ground electrode, which is situated in a curved shape having a horizontal area and an essentially vertical area, and at least one second ground electrode, which is situated adjacent to the central electrode in such a way that a distance between the first ground electrode and the central electrode is less than a distance between the second ground electrode and the central electrode.

Spark plug having long service life

A spark plug for an internal combustion engine includes a ground electrode, a center electrode, an insulator, a housing, and a folded packing which is situated on an outer circumference of the housing. The folded packing has: a hollow profile in cross section; a free leg directed outwards; and a support region. The folded packing lies on a contact surface in a support region, and the free leg is situated at an angle to the support region. The folded packing is pressed together during the mounting of the spark plug, and the free leg of the folded packing is designed to bend over in the direction of the support surface during the mounting to provide a diameter enlargement of the folded packing.

Spark plug incorporating a folded packing situated on an outer circumference of a housing for position-oriented installation

Growing community of inventors

Munich, Georgia

Mario Fleischhauer