Glühkerze

Details

Veröffentlichungs-Nr.

EP2863126

Aktenzeichen

EP14188920

Anmeldetag

15. Oktober 2014

Veröffentlichung

26. April 2017

Erteilung

26. April 2017

Rechtsraum

EP

IPC

F23Q7/00

Abstract

[Objective] To improve durability of a glow plug having a heat-generating element formed primarily of tungsten (W) or molybdenum (Mo). [Means for Solution] A glow plug includes a tubular member having a tubular shape; a heat-generating element disposed within the tubular member and adapted to generate heat through application of electricity thereto; and a connection portion which connects the tubular member and the heat-generating element and has a fusion zone formed as a result of welding to the heat-generating element. The heat-generating element is formed primarily of tungsten (W) or molybdenum (Mo). That portion of the fusion zone which extends up to at least 20 µm from an interface with the heat-generating element does not contain nickel (Ni).

Anmelder

Firma

NGK Spark Plug Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete