Tenneco Gmbh

Tennecoinc.

Giovanni Betti Beneventi

Massimo Augusto Dal Re

Stefano Papi

Giulio Milan

Alessio Di Giuseppe

A wire for an ignition coil assembly and/or a corona ignition assembly is provided. The wire comprises a wire core including a copper-based material, and a coating applied to the wire core. The coating includes at least one of a carbon-based material and magnetic nanoparticles. The carbon-based material can include graphene and/or carbon nanotubes, and the magnetic nanoparticles can include graphene and iron oxide (FeO). Typically, the coating includes a plurality of layers. For example, the coating can include a layer of the graphene and/or carbon nanotubes, and/or a layer of the magnetic nanoparticles. The coating can also include a layer of insulating material, such as enamel. According to another embodiment, the coating includes iron, nickel, and/or cobalt plated onto the wire core.

Wire for an ignition coil assembly, ignition coil assembly, and methods of manufacturing the wire and ignition coil assembly

A corona igniter assembly which is designed to reduce the amount of air gaps between insulating components and thus reduce electrical fields concentrated in those air gaps and the associated unwanted corona discharge. The assembly includes a high voltage center electrode surrounded by a ceramic insulator and a high voltage insulator. A dielectric compliant insulator is disposed between the ceramic insulator and the high voltage insulator. A layer of metal is applied to at least one of the insulators, for example the ceramic insulator. A compliant collet formed of a partially resistive material covers a sharp edge of the layer of metal to reduce the electric field and smooth the electric field distribution at the sharp edge of the metal layer.

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Modena, Italy

Giovanni Betti Beneventi