公开(公告)号：US20150270688A1

公开(公告)日：2015-09-24

申请号：US14709094

申请日：2015-05-11

Applicant: FEDERAL-MOGUL IGNITION COMPANY

Inventor： PATRICK DURHAM

IPC: H01T21/02

CPC classification number: H01T21/02 ,  F02P23/04 ,  H01B13/06 ,  H01T13/20 ,  H01T13/52

Abstract: An igniter (20) includes an outer insulator (24) formed of an outer ceramic material hermetically sealed to a conductive core (26). The conductive core (26) is formed of a core ceramic material and a conductive component, such as an electrically conductive coating applied to the core ceramic material or metal particles or wires embedded in the core ceramic material. The conductive core (26) is typically sintered and disposed in the green outer insulator (24). The components are then sintered together such that the outer insulator (24) shrinks onto the conductive core (26) and the hermetic seal forms therebetween. The conductive core (26) fills the outer insulator (24), so that the conductive core (26) is disposed at an insulator nose end (34) of the outer insulator (24) and the electrical discharge (22) can be emitted from the conductive core (26), eliminating the need for a separate firing tip.

Abstract translation: 点火器（20）包括由与导电芯（26）气密密封的外陶瓷材料形成的外绝缘体（24）。 导电芯（26）由核心陶瓷材料和导电组分形成，例如施加到核心陶瓷材料上的导电涂层或嵌入芯体陶瓷材料中的金属颗粒或电线。 导电芯（26）通常烧结并设置在绿色外绝缘体（24）中。 然后将这些组件烧结在一起，使得外绝缘体（24）收缩到导电芯（26）上，并且其间形成气密密封。 导电芯（26）填充外绝缘体（24），使得导电芯（26）设置在外绝缘体（24）的绝缘体鼻端（34）处，并且放电（22）可以从 导电芯（26），消除了单独的点火尖端的需要。