Federal-mogul Corporation

Federal-mogul Ignition Company

Other

Tenneco Gmbh

Federal-mogul Ignition Gmbh

Tennecoinc.

Tenneco Lnc.

Massimo Augusto Dal Re

Giulio Milan

Paolo Pignatti

Stefano Papi

Vittorio Urciuoli

Kristapher I Mixell

Giovanni Betti Beneventi

Giuseppe Fulchini

Paul William Phillips

Alessio Di Giuseppe

Marcello Cino

Christian Sforzina

Danilo Giordano

Guiseppe Fulchini

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.

Shaped collet for electrical stress grading in corona ignition systems

A corona ignition assembly including a firing end assembly and an ignition coil assembly connected by a high voltage connection is provided. The high voltage connection includes a high voltage insulator formed of silicon rubber. A shield formed of metal surrounds the high voltage insulator. The high voltage connection also includes an upper insert formed of metal connecting the shield to the ignition coil assembly and a lower insert formed of metal connecting the shield to the firing end assembly. First portions of the outer surface of the high voltage insulator adhere to the shield, the upper insert, and the lower insert, while second portions of the outer surface do not adhere to at least one of the shield, the upper insert, and the lower insert. A metal braid can be embedded in the high voltage insulator.

Corona ignition assembly including a high voltage connection and method of manufacturing the corona ignition assembly

A corona igniter assemblycomprises an ignition coil assembly, a firing end assembly, and a metal tubeconnecting the ignition coil assemblyto the firing end assembly. A rubber bootis disposed in the metal tubeand compressed symmetrically between a coil output memberof the ignition coil assemblyand an insulatorof the firing end assembly. Thus, the rubber bootfills any air gaps and provides a hermetic seal between the ignition coil assemblyand the firing end assemblyto prevent unwanted corona discharge from forming from those air gaps.

High voltage connection sealing method for corona ignition coil

A corona ignition assembly comprising a plurality of different insulators disposed between an ignition coil assembly and firing end assembly is provided. A high voltage center electrode extends longitudinally between an igniter central electrode and the ignition coil assembly. A high voltage insulator formed of a fluoropolymer surrounds the high voltage center electrode, and a firing end insulator formed of alumina surrounds the igniter central electrode. According to one embodiment, a glue formed of a compliant and insulating material, such as a silicon-based material, forms a seal between the high voltage insulator and the firing end insulator. According to another embodiment, a dielectric compliant insulator is disposed between the high voltage insulator and the ignition coil assembly, and the glue forms a seal therebetween. The glue fills air gaps to prevent unwanted corona discharge, and thus extends the life of the materials and directs energy to the firing end.

Corona suppression at materials interface through gluing of the components

A corona ignition assembly comprising a plurality of different insulators disposed between an ignition coil assembly and firing end assembly is provided. A high voltage center electrode extends longitudinally between an igniter central electrode and the ignition coil assembly. A high voltage insulator formed of a fluoropolymer surrounds the high voltage center electrode, and a firing end insulator firing of alumina surrounds the igniter central electrode. A sleeve formed of a semi-conductive and complaint material, such as silicone rubber with conductive filler, is disposed radially between the electrodes and adjacent insulators. The sleeve fills air gaps and minimizes the peak electric field within the corona igniter assembly. The sleeve is able to prevent unwanted corona discharge, and thus extends the life of the materials and directs energy to the firing end.

Corona suppression at the high voltage joint through introduction of a semi-conductive sleeve between the central electrode and the dissimilar insulating materials

This invention is directed to a device for energy storage and transformation that allows an increased level of energy storable in an ignition coil, using a coil that has a permanent magnet inside of a primary magnetic core, with a second magnetic core that closes the magnetic path of the primary magnetic core.

Ignition coil with energy storage and transformation

An ignition coil configured for electrical communication with a spark plug of an internal combustion engine has a primary spool and a secondary spool. The primary spool has a bore and an outer surface with a low-voltage winding supported thereon. The secondary spool has a cavity with a magnetic core received therein and a substantially cylindrical outer surface. The secondary spool is received at least partially in the bore of the primary spool. A high-voltage winding is supported on the outer surface of the secondary spool. The high-voltage winding has discrete winding sectors spaced from one another along a length of the secondary spool.

Growing community of inventors

Concordia Sulla Secchia, Italy

Massimo Augusto Dal Re