公开(公告)号：US09755405B2

公开(公告)日：2017-09-05

申请号：US15077615

申请日：2016-03-22

Applicant: FEDERAL-MOGUL CORPORATION

Inventor： Kristapher Mixell ,  Paul Phillips ,  Giulio Milan ,  Massimo Dal Re

IPC: H01T19/00 ,  H01T13/20 ,  H01T21/02 ,  H01T13/44 ,  H01T13/50 ,  H01T13/34

CPC classification number: H01T19/00 ,  H01T13/20 ,  H01T13/34 ,  H01T13/44 ,  H01T13/50 ,  H01T21/02

Abstract: 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.

公开(公告)号：US09941671B2

公开(公告)日：2018-04-10

申请号：US15271874

申请日：2016-09-21

Applicant: FEDERAL-MOGUL CORPORATION

Inventor： Kristapher Mixell ,  Paul Phillips

IPC: H01T19/00 ,  H01T13/50 ,  H01T21/02 ,  F02P23/04

CPC classification number: H01T19/00 ,  F02P23/04 ,  H01T13/04 ,  H01T13/50 ,  H01T21/02

Abstract: A corona igniter assembly including an ignition coil assembly, a firing end assembly, and a dielectric compliant member is provided. The dielectric compliant member is compressed between a high voltage insulator of the ignition coil assembly and a ceramic insulator of the firing end assembly. During assembly of the corona igniter assembly, the dielectric compliant member pushes air outwards and forms a hermetic seal between the high voltage insulator and the ceramic insulation. The dielectric compliant member can have a rounded upper surface, which may improve the hermetic seal. Alternatively, or in addition to the rounded surface on the dielectric compliant member, the lower surface of the high voltage insulator can be rounded to push air outwards during assembly and provide a hermetic seal.

公开(公告)号：US20170025824A1

公开(公告)日：2017-01-26

申请号：US15077615

申请日：2016-03-22

Applicant: FEDERAL-MOGUL CORPORATION

Inventor： Kristapher Mixell ,  Paul Phillips ,  Giulio Milan ,  Massimo Dal Re

IPC: H01T19/00 ,  H01T21/02 ,  H01T13/20

CPC classification number: H01T19/00 ,  H01T13/20 ,  H01T13/34 ,  H01T13/44 ,  H01T13/50 ,  H01T21/02

Abstract: 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.

Abstract translation: 提供一种包括设置在点火线圈组件和点火端组件之间的多个不同绝缘体的电晕点火组件。 高压中心电极在点火器中心电极和点火线圈组件之间纵向延伸。 由氟聚合物形成的高电压绝缘体围绕高压中心电极，并且氧化铝的点火端绝缘体烧制围绕点火器中心电极。 由半导电材料（例如具有导电填料的硅橡胶）形成的套管径向设置在电极和相邻的绝缘体之间。 套管填充空气间隙，并使电晕点火器组件内的峰值电场最小化。 套筒能够防止不必要的电晕放电，从而延长材料的使用寿命并将能量引导到发射端。