Title:
グロープラグ
Document Type and Number:
Japanese Patent JP7090570
Kind Code:
B2
Abstract:
To provide a glow plug which can suppress breakage of a heating element.SOLUTION: In a glow plug, on a cross section including an axis line of the glow plug, with the axis line being a boundary, a first heating element cross section, a third heating element cross section and a fifth heating element cross section are disposed sequentially on one side from a tip side, and with the axis line being a boundary, a second heating element cross section, a fourth heating element cross section and a sixth heating element cross section are disposed sequentially on the other side from the tip side. A distance A in the axis direction between the first heating element cross section and the third heating element cross section is larger than a distance B in the axis direction between the third heating element cross section and the fifth heating element cross section, and a distance C in the axis direction between the second heating element cross section and the fourth heating element cross section is larger than a distance D in the axis direction between the fourth heating element cross section and the sixth heating element cross section.SELECTED DRAWING: Figure 2
More Like This:
Inventors:
Yuta Watanabe
Application Number:
JP2019033645A
Publication Date:
June 24, 2022
Filing Date:
February 27, 2019
Export Citation:
Assignee:
Nippon Special Ceramics Co., Ltd.
International Classes:
F23Q7/00
Domestic Patent References:
| JP2001330249A | ||||
| JP2016223651A | ||||
| JP2015169346A |
Foreign References:
| US5468933 |
Attorney, Agent or Firm:
Patent Service Corporation Shinmei Century