JPH0473740U - - Google Patents
Info
- Publication number
- JPH0473740U JPH0473740U JP10795290U JP10795290U JPH0473740U JP H0473740 U JPH0473740 U JP H0473740U JP 10795290 U JP10795290 U JP 10795290U JP 10795290 U JP10795290 U JP 10795290U JP H0473740 U JPH0473740 U JP H0473740U
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- protective tube
- igniter
- igniter plug
- red
- 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
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims 4
- 239000000446 fuel Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 7
- 239000000919 ceramic Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
Description
第１図は本考案のイグナイタプラグの一実施例
の縦断面図、第２図は同正面図、第３図は本考案
のイグナイタプラグを軽油点火トーチに設置した
状態図、第４図は本考案のイグナイタプラグの伝
熱シミユレーシヨンモデルと計算式を示す図、第
５図は第４図の伝熱モデルでのシミユレーシヨン
による結果を示す図、第６図は従来のパルスイグ
ナイタの構造を示す図、第７図は従来のセラミツ
クスイグナイタの構造を示す図、第８図はセラミ
ツクスイグナイタの発熱温度と抵抗値の関係を示
す特性図、第９図は同冷却時の発熱特性を示す図
、第１０図は水噴霧試験におけるイグナイタ設定
位置と発熱体温度上昇の関係を示す特性図、第１
１図は発熱体表面温度と水または軽油噴霧による
熱伝達係数の関係を示す特性図である。
１……セラミツクス発熱体、２，３２……発熱
体高温部、３，３３……発熱体低温部、４……電
極接合部、５……金属保護管、６……マイナス側
電極端部、７……絶縁スリーブ、８……プラス側
電極端子、９……プラス側リード線、１０……マ
イナス側リード線、１１……充填材、１２……空
気吸入口、１３……空気吹出口、１４，４１……
イグナイタスリーブ、１５……テーパ状リング、
１６，４２……イグナイタ冷却用空気、１７，３
４……軽油アトマイザ、１８，３７……軽油噴霧
、２１……イグナイタプラグ、３１……セラミツ
クス発熱体、３５……パルスイグナイタ、３６ａ
，３６ｂ……電極、４０……燃焼用空気。
Fig. 1 is a vertical cross-sectional view of one embodiment of the igniter plug of the present invention, Fig. 2 is a front view of the same, Fig. 3 is a diagram of the igniter plug of the present invention installed in a light oil ignition torch, and Fig. 4 is a diagram of the igniter plug of the present invention. Figure 5 shows the heat transfer simulation model and calculation formula for the invented igniter plug. Figure 5 shows the simulation results using the heat transfer model in Figure 4. Figure 6 shows the structure of a conventional pulse igniter. 7 is a diagram showing the structure of a conventional ceramic igniter, FIG. 8 is a characteristic diagram showing the relationship between the heat generation temperature and resistance value of the ceramic igniter, and FIG. 9 is a diagram showing the heat generation characteristics during cooling. Figure 10 is a characteristic diagram showing the relationship between the igniter setting position and heating element temperature rise in the water spray test.
FIG. 1 is a characteristic diagram showing the relationship between the surface temperature of the heating element and the heat transfer coefficient due to water or light oil spray. DESCRIPTION OF SYMBOLS 1...Ceramics heating element, 2, 32...Heating element high temperature part, 3, 33...Heating element low temperature part, 4...Electrode joint part, 5...Metal protection tube, 6...Minus side electrode end part, 7...Insulating sleeve, 8...Positive side electrode terminal, 9...Positive side lead wire, 10...Minus side lead wire, 11...Filling material, 12...Air intake port, 13...Air outlet, 14,41...
Igniter sleeve, 15... Tapered ring,
16,42...Igniter cooling air, 17,3
4... Light oil atomizer, 18, 37... Light oil spray, 21... Igniter plug, 31... Ceramics heating element, 35... Pulse igniter, 36a
, 36b...electrode, 40...combustion air.
Claims (1)
イタプラグにおいて、 前記抵抗発熱体を包囲する保護管と、 前記保護管の、前記発熱体の低温部と対向する
部分に穿設した空気吸入口と、 前記発熱体の赤熱部が突出する前記保護管先端
に開口した空気吹出口とを備え、 前記発熱体及び前記保護管に衝突する燃料噴霧
流が、前記発熱体の低温部への流入を阻止するよ
うに構成したことを特徴とするイグナイタプラグ
。[Claims for Utility Model Registration] An igniter plug that ignites fuel by making a resistive heating element red-hot, comprising: a protective tube surrounding the resistive heating element; and a portion of the protective tube that faces a low-temperature portion of the heating element. The heating element includes a perforated air inlet and an air outlet opened at the tip of the protective tube from which the red-hot part of the heating element protrudes, so that the fuel spray flow that collides with the heating element and the protective tube is directed to the heating element. An igniter plug characterized in that it is configured to prevent inflow into a low-temperature part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10795290U JPH0473740U (en) | 1990-10-17 | 1990-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10795290U JPH0473740U (en) | 1990-10-17 | 1990-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0473740U true JPH0473740U (en) | 1992-06-29 |
Family
ID=31854696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10795290U Pending JPH0473740U (en) | 1990-10-17 | 1990-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0473740U (en) |
-
1990
- 1990-10-17 JP JP10795290U patent/JPH0473740U/ja active Pending
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