JPH0216594U - - Google Patents
Info
- Publication number
- JPH0216594U JPH0216594U JP9414288U JP9414288U JPH0216594U JP H0216594 U JPH0216594 U JP H0216594U JP 9414288 U JP9414288 U JP 9414288U JP 9414288 U JP9414288 U JP 9414288U JP H0216594 U JPH0216594 U JP H0216594U
- Authority
- JP
- Japan
- Prior art keywords
- insulator
- cylindrical
- fitted
- shaft hole
- metal shell
- 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
- 239000012212 insulator Substances 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 3
- 239000000919 ceramic Substances 0.000 claims 2
- 239000011224 oxide ceramic Substances 0.000 claims 1
- 229910052574 oxide ceramic Inorganic materials 0.000 claims 1
- 239000003566 sealing material Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Spark Plugs (AREA)
Description
第１図は本考案にかかるスパークプラグの第１
実施例の断面図、第２図はその第２実施例の部分
断面図、第３図は従来例１の断面図、第４図は従
来例２の部分断面図である。
図中 １０，１０ａ，２１０，３１０……先端
側絶縁体、１１，２１１……雄ネジ、３０，３０
ａ，２３０，３３０……筒状後端側絶縁体、３１
，２３１……雌ネジ、８０，８０ａ，２８０，３
８０……ガラス封着。
Figure 1 shows the first spark plug according to the present invention.
FIG. 2 is a partial sectional view of the second embodiment, FIG. 3 is a sectional view of Conventional Example 1, and FIG. 4 is a partial sectional view of Conventional Example 2. In the figure 10, 10a, 210, 310... Tip side insulator, 11, 211... Male thread, 30, 30
a, 230, 330... Cylindrical rear end side insulator, 31
, 231...Female thread, 80, 80a, 280, 3
80...Glass sealing.
Claims (1)
熱伝導性セラミツクス製で軸孔付の筒状先端側絶
縁体と、 該軸孔内に先後端を突出して嵌め込まれる中心
電極体と、 前記先端側絶縁体の後部に接合する、酸化物系
セラミツクス製で軸孔付の筒状後端側絶縁体と、 該筒状後端側絶縁体の貫通孔の先端側に充填さ
れる導電性ガラスシールと、 先端が導電性ガラスシールに連続し、後端を後
端側絶縁体から突出させて軸孔に嵌め込まれた端
子軸とからなるスパークプラグにおいて、 前記良熱伝導性セラミツクス製の先端側絶縁体
の後部に雄ネジ、前記後端側絶縁体の前部に雌ネ
ジを設け、両者を螺合し、接合面をシール材で封
着することを特徴とするスパークプラグ。[Scope of Claim for Utility Model Registration] A cylindrical metal shell, a cylindrical front insulator made of highly thermally conductive ceramics and fitted into the front end of the metal shell and having a shaft hole, and a cylindrical front insulator fitted into the front end of the metal shell; a center electrode body that is fitted with its end protruding; a cylindrical rear insulator made of oxide ceramics with a shaft hole and joined to the rear of the front insulator; and a cylindrical rear insulator with a shaft hole. A spark plug consisting of a conductive glass seal filled at the tip of a through hole, and a terminal shaft whose tip is continuous with the conductive glass seal and whose rear end protrudes from the rear insulator and is fitted into the shaft hole. In this step, a male screw is provided at the rear of the tip end insulator made of good thermal conductivity ceramics, and a female screw is provided at the front of the rear end insulator, the two are screwed together, and the joint surfaces are sealed with a sealing material. A spark plug characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9414288U JPH0216594U (en) | 1988-07-15 | 1988-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9414288U JPH0216594U (en) | 1988-07-15 | 1988-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0216594U true JPH0216594U (en) | 1990-02-02 |
Family
ID=31318641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9414288U Pending JPH0216594U (en) | 1988-07-15 | 1988-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0216594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015099765A (en) * | 2013-10-16 | 2015-05-28 | 株式会社デンソー | Spark plug for internal combustion engine |
| JP2015185286A (en) * | 2014-03-22 | 2015-10-22 | 日本特殊陶業株式会社 | spark plug |
-
1988
- 1988-07-15 JP JP9414288U patent/JPH0216594U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015099765A (en) * | 2013-10-16 | 2015-05-28 | 株式会社デンソー | Spark plug for internal combustion engine |
| JP2015185286A (en) * | 2014-03-22 | 2015-10-22 | 日本特殊陶業株式会社 | spark plug |
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