JPS628555U - - Google Patents

Info

Publication number
JPS628555U
JPS628555U JP9706185U JP9706185U JPS628555U JP S628555 U JPS628555 U JP S628555U JP 9706185 U JP9706185 U JP 9706185U JP 9706185 U JP9706185 U JP 9706185U JP S628555 U JPS628555 U JP S628555U
Authority
JP
Japan
Prior art keywords
dense
temperature
coarse
sintered body
ceramic sintered
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.)
Granted
Application number
JP9706185U
Other languages
Japanese (ja)
Other versions
JPH0424307Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985097061U priority Critical patent/JPH0424307Y2/ja
Publication of JPS628555U publication Critical patent/JPS628555U/ja
Application granted granted Critical
Publication of JPH0424307Y2 publication Critical patent/JPH0424307Y2/ja
Expired legal-status Critical Current

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  • Resistance Heating (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の具体的実施例を示す縦断面図
、第2図は従来のブレーキングコイルを発熱体外
部に設けたグロープラグの縦断面図、第3図は先
行技術のグロープラグの縦断面図である。 1……セラミツク焼結体、2……発熱抵抗線、
5……陽電極取出し金具、2S……第1の密な
部分、2L……第2の粗な部分、2LL……
第1の大粗な部分、2LL……第2の大粗な部
分、2S……第2の密な部分。
Fig. 1 is a longitudinal cross-sectional view showing a specific embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of a glow plug in which a conventional braking coil is provided outside the heating element, and Fig. 3 is a longitudinal cross-sectional view of a glow plug according to the prior art. FIG. 1... Ceramic sintered body, 2... Heat generating resistance wire,
5... Positive electrode extraction fitting, 2S 1 ... First dense part, 2L 1 ... Second rough part, 2LL 1 ...
First coarse portion, 2LL 2 ...Second coarse portion, 2S 2 ...Second dense portion.

Claims (1)

【実用新案登録請求の範囲】 (1) 棒状セラミツク焼結体内にコイル状発熱抵
抗線を埋設し、セラミツク焼結体基端に陽電極取
出し金具を設け、エンジン始動時に急速昇温させ
、その後一定温度に飽和させるようにした急速昇
温―温度飽和型グロープラグであつて、セラミツ
ク焼結体の先端の発熱抵抗線にコイル巻線ピツチ
が密な第1の密な部分を設け、第1の密な部分か
ら陽電極取出し金具側へコイル巻線ピツチが粗な
第1の粗な部分を設け、さらにこの第1の粗な部
分よりコイル巻線ピツチが大きな第1および第2
の大粗な部分に挾まれた第2の密な部分を介して
陽電極取出し金具に接続し、第1の密な部分より
も第2の密な部分のコイル巻数や長さを小さくし
、発熱抵抗線を全て同材質の一本の線材で形成し
たことを特徴とする急速昇温―温度飽和型グロー
プラグ。 (2) 第2の密な部分をセラミツク焼結体を保持
する金属管および基端の電極部分に形成されるメ
タライズ部を避けて配置した実用新案登録請求の
範囲第1項記載の急速昇温―温度飽和型グロープ
ラグ。
[Scope of Claim for Utility Model Registration] (1) A coiled heating resistance wire is embedded in a rod-shaped ceramic sintered body, a positive electrode extraction fitting is provided at the base end of the ceramic sintered body, and the temperature is raised rapidly when the engine is started, and then kept constant. This is a rapid heating-temperature saturation type glow plug designed to saturate the temperature, and the heating resistance wire at the tip of the ceramic sintered body is provided with a first dense portion where the coil winding pitch is dense. A first coarse part with a coarse coil winding pitch is provided from the dense part to the anode extraction metal fitting side, and first and second coarse parts with a larger coil winding pitch than the first coarse part are provided.
The second dense part is connected to the positive electrode extraction fitting through the second dense part sandwiched between the coarse parts, and the number of coil turns and length of the second dense part are smaller than that of the first dense part. A rapid temperature rise-temperature saturation type glow plug characterized by the fact that all the heat-generating resistance wires are made of a single wire made of the same material. (2) The rapid temperature rise according to claim 1 of the utility model registration claim, in which the second dense portion is arranged avoiding the metal tube that holds the ceramic sintered body and the metallized portion formed on the base end electrode portion. - Temperature saturated glow plug.
JP1985097061U 1985-06-26 1985-06-26 Expired JPH0424307Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985097061U JPH0424307Y2 (en) 1985-06-26 1985-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985097061U JPH0424307Y2 (en) 1985-06-26 1985-06-26

Publications (2)

Publication Number Publication Date
JPS628555U true JPS628555U (en) 1987-01-19
JPH0424307Y2 JPH0424307Y2 (en) 1992-06-08

Family

ID=30963590

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985097061U Expired JPH0424307Y2 (en) 1985-06-26 1985-06-26

Country Status (1)

Country Link
JP (1) JPH0424307Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01114622A (en) * 1987-10-28 1989-05-08 Kyocera Corp Self-controlling type ceramic glow plug

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58190628A (en) * 1982-04-28 1983-11-07 Jidosha Kiki Co Ltd Glow plug for diesel engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58190628A (en) * 1982-04-28 1983-11-07 Jidosha Kiki Co Ltd Glow plug for diesel engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01114622A (en) * 1987-10-28 1989-05-08 Kyocera Corp Self-controlling type ceramic glow plug

Also Published As

Publication number Publication date
JPH0424307Y2 (en) 1992-06-08

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