公开(公告)号：US20140361000A1

公开(公告)日：2014-12-11

申请号：US14374277

申请日：2013-03-27

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Gaku Hatano ,  Hiroyuki Suzuki

IPC: F23Q7/00 ,  F02P19/02

CPC classification number: F23Q7/001 ,  F02P19/02

Abstract: A contact member (7) which has a cylindrical hole and whose outer circumferential surface has a contour swelling radially outward as viewed from a direction orthogonal to its axial direction is disposed between the wall surface of an axial bore (43) and a center shaft (3) at the rear end of a glow plug (1). The disposed contact member (7) is in contact with the wall surface of the axial bore (43) and the center shaft (3). A tubular insulation member (6) is disposed on the rear side of the contact member (7). The tan δ of dynamic viscoelasticity of the contact member (7) within a temperature range of 50° C. to 150° C. is 0.1 or greater.

Abstract translation: 具有圆柱形孔的外周表面具有从与其轴向正交的方向观察时径向向外膨胀的轮廓的接触构件（7）设置在轴向孔（43）的壁面与中心轴（ 3）在电热塞（1）的后端。 设置的接触构件（7）与轴向孔（43）和中心轴（3）的壁表面接触。 管状隔离构件（6）设置在接触构件（7）的后侧。 接触构件（7）在50℃〜150℃的温度范围内的动态粘弹性的tanδ为0.1以上。