Robert Boschgmbh

Corinna Vonau

Jens Schneider

Stefan Nufer

Sabine Roesch

Stefan Rodewald

Hubertus Braun

Benedikt Reinsch

Carsten Kuenzel

Sergej Subkow

Helene Kasjanow

A spark plug having a longitudinal axis. The spark plug includes: a housing; an insulator disposed at least partly inside the housing; a center electrode disposed at least partly inside the insulator and has an electrode body and an ignition element that is disposed on the combustion chamber-side end of the electrode body and serves as an ignition surface, wherein the ignition element has a cylindrical shape with a round base and a longitudinal axis which extends parallel to the spark plug longitudinal axis; and at least one ground electrode having an ignition surface disposed inside the housing on the housing. The ground electrode and the center electrode are disposed such that they form a spark gap that extends radially with respect to the spark plug longitudinal axis, wherein a width of the spark gap is not greater than 0.3 mm. The spark gaps are completely inside the housing.

Spark plug

A spark plug resistance element that includes at least one inorganic amorphous oxide and at least one first inorganic crystalline oxide having a relative dielectric permittivity of at most 15. A spark plug that includes at least one spark plug resistance element is also described.

Spark plug resistance element and spark plug

A spark plug connecting element. The spark plug connecting element includes a first contact element and a second contact element. A resistor element is situated between the first contact element and the second contact element. The first contact element and the second contact element have a specific conductivity of 10S/m to 10S/m and the resistor element has a specific conductivity of 10S/m to 10S/m.

Spark plug connecting element and spark plug

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Stuttgart, Germany

Corinna Vonau