公开(公告)号：US20130099792A1

公开(公告)日：2013-04-25

申请号：US13654891

申请日：2012-10-18

Applicant: STMicroelectronics S.r.I.

Inventor： Davide Giuseppe Patti ,  Mario Paparo ,  Domenico Rossi

IPC: H01T13/40 ,  F02P17/12

CPC classification number: H01T13/40 ,  F02P2017/125 ,  H01T13/60 ,  H01T21/02

Abstract: A spark plug, including an insulator embedding a first metallic electrode axially extending therethrough from a high voltage outer end terminal to the center of the inner end of the insulator from which it protrudes; a metallic ground electrode isolated from the first electrode and having an extended inner termination facing toward the first electrode extending from the insulator tip for defining therebetween a spark gap, a resistive element connected to the ground electrode such that upon mounting the spark plug in an internal combustion engine, the ground electrode electrically connects to the engine body through the resistive element; and to a second outer termination of the ground electrode, adapted to constitute an accessible sensing terminal.

Abstract translation: 一种火花塞，包括绝缘体，其嵌入从高压外端端子轴向延伸穿过其中突出的绝缘体的内端的中心的第一金属电极; 金属接地电极，与第一电极隔离并且具有面向从第一电极延伸的第一电极的延伸的内部端子，其从绝缘体末端延伸以在其间形成火花隙;电阻元件，连接到接地电极，使得在将火花塞安装在内部 内燃机，接地电极通过电阻元件电连接到发动机主体; 并且连接到接地电极的第二外部端子，适于构成可访问感测端子。