JPS6032662U - Ceramic glow plug - Google Patents
Ceramic glow plugInfo
- Publication number
- JPS6032662U JPS6032662U JP12323483U JP12323483U JPS6032662U JP S6032662 U JPS6032662 U JP S6032662U JP 12323483 U JP12323483 U JP 12323483U JP 12323483 U JP12323483 U JP 12323483U JP S6032662 U JPS6032662 U JP S6032662U
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- glow plug
- heater
- ceramic glow
- tip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Resistance Heating (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来例セラミックグロープラグのセラミック
ヒータ−の形状を示す要部斜視図、第２図は本考案セラ
ミツ多グロープラグのセラミックヒータ−の要部形状を
示し、同図イは正面図、口はその先端部端面図、第３図
は本考案によるセラミックヒータ−のヒーター棒の先端
部形状説明図、第４図はセラミックヒータ−はについて
行なった熱衝撃テストの試料形状を示す斜視図、第５図
はセラミックヒータ−のヒーター棒について行なった抗
折強度テスト方法説明図、第６図はセラミックヒータ−
の従来例及び本考案の実施例についての昇温特性グラフ
で同図イは従来例、同図口は本考案実施例について示し
たものである。
Ｉｔ １’ ：金属ホルダー、２．２’ ：ヒー
ター棒、２ａ、２ｂ：かど部、２′ａ：先端部、３：発
熱線コイル、３ａ：発熱線コイルの先端部。Fig. 1 is a perspective view of the main part showing the shape of the ceramic heater of the conventional ceramic glow plug, Fig. 2 shows the main part shape of the ceramic heater of the ceramic glow plug of the present invention, and Fig. 1A is a front view. , the mouth is an end view of its tip, FIG. 3 is an explanatory diagram of the shape of the tip of the heater rod of the ceramic heater according to the present invention, and FIG. 4 is a perspective view showing the shape of a sample of a thermal shock test conducted on the ceramic heater. , Fig. 5 is an explanatory diagram of the bending strength test method conducted on the heater rod of a ceramic heater, and Fig. 6 is an explanatory diagram of a method for testing the bending strength of a heater rod of a ceramic heater.
In the temperature rise characteristic graphs for the conventional example and the embodiment of the present invention, the graph A shows the conventional example, and the opening of the figure shows the graph of the embodiment of the present invention. It 1': metal holder, 2.2': heater rod, 2a, 2b: corner, 2'a: tip, 3: heating wire coil, 3a: tip of heating wire coil.
Claims (1)
に埋設し焼結してなるセラミックヒータ−を設けてなる
セラミックグロープラグに於て、前記セラミックヒータ
−のヒーター棒が断面真円に形成されるとともに、その
先端部が該ヒーター棒の径の１／２乃至１／４の半径で
かどを丸めた半球状もしくは半球状に近い形状に形成さ
れていることを特徴とするセラミックグロープラグ。In a ceramic glow plug in which a ceramic heater made by embedding a heating wire coil in ceramic powder and sintering it is provided at the tip of the mounting bracket, the heater rod of the ceramic heater is formed with a perfect circle in cross section. A ceramic glow plug characterized in that the tip thereof is formed into a hemispherical or nearly hemispherical shape with rounded corners at a radius of 1/2 to 1/4 of the diameter of the heater rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12323483U JPS6032662U (en) | 1983-08-10 | 1983-08-10 | Ceramic glow plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12323483U JPS6032662U (en) | 1983-08-10 | 1983-08-10 | Ceramic glow plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6032662U true JPS6032662U (en) | 1985-03-06 |
Family
ID=30281386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12323483U Pending JPS6032662U (en) | 1983-08-10 | 1983-08-10 | Ceramic glow plug |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6032662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0275188A (en) * | 1988-09-09 | 1990-03-14 | Ngk Spark Plug Co Ltd | Ceramic heating element |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5895122A (en) * | 1981-12-01 | 1983-06-06 | Ngk Spark Plug Co Ltd | Glow plug for high temperature |
-
1983
- 1983-08-10 JP JP12323483U patent/JPS6032662U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5895122A (en) * | 1981-12-01 | 1983-06-06 | Ngk Spark Plug Co Ltd | Glow plug for high temperature |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0275188A (en) * | 1988-09-09 | 1990-03-14 | Ngk Spark Plug Co Ltd | Ceramic heating element |
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