CN202545092U - Porcelain electric heating plug of diesel engine - Google Patents
Porcelain electric heating plug of diesel engine Download PDFInfo
- Publication number
- CN202545092U CN202545092U CN2012202040851U CN201220204085U CN202545092U CN 202545092 U CN202545092 U CN 202545092U CN 2012202040851 U CN2012202040851 U CN 2012202040851U CN 201220204085 U CN201220204085 U CN 201220204085U CN 202545092 U CN202545092 U CN 202545092U
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- heating
- electric heating
- diesel engine
- plug
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The utility model discloses a porcelain electric heating plug of a diesel engine, relating to the technical field of the diesel engine, in particular to the technical field of production of the electric heating plug of the diesel engine. The porcelain electric heating plug comprises a conducting layer, an insulating layer and a heating layer, wherein the insulating layer is arranged outside the conducting layer, the heating layer is arranged outside the insulating layer, a rear end of the conducting layer is provided with an electrode access cavity, a front end of the conducting layer is connected with the heating layer via a through hole, and the through hole is arranged on the insulating layer. The heating layer and the conducting layer are connected at a communicating hole at the top of the insulating layer, so that a closed loop of current is formed, and when voltage exists between an electrode and an electric heating plug shell, heat is generated to make temperature rapidly rise due to a high resistance value of the heating layer.
Description
Technical field
The utility model relates to the glow plug production technical field in diesel engine technologies field, particularly DENG.
Background technique
In DENG, ignition system is the key product that can motor proper functioning, and wherein the effect of glow plug is even more important.The DENG of current domestic production; Traditional firing mode that its ignition system mostly adopts, glow plug are the metallic type glow plug, and heater is the metal heating wire; Be sealed in the heat-resistance stainless steel pipe, electrically molten magnesia powder filling is preferably isolated and insulation by thermal conductivity.Determined the narrow limitation of its performance because of material, reasons in structure: the about 8～25S of priming speed, 950 ℃ of maximum temperatures, electric current is reduced to about 6A, and working life is about 20,000 times.
Summary of the invention
The utility model purpose is to propose that a kind of long service life, temperature tolerance are higher, priming speed DENG ceramic electric heating plug faster.
The utility model comprises conductive layer, isolation layer and heating layer; Said isolation layer is arranged on outside the conductive layer; Said heating layer is arranged on outside the isolation layer, electrode is set in the rear end of said conductive layer inserts the chamber, and the front end of said conductive layer is connected with heating layer through the through hole that is arranged on the isolation layer.
The heating layer of the utility model is connected with the intercommunicating pore place of conductive layer at the isolation layer top, thereby forms the closed-loop path of electric current.When having voltage between electrode and glow plug housing, heating layer has higher resistance value because of it, causes temperature to rise rapidly thereby produce heat.
The advantage of the utility model has: 1, high temperature, startup fast; 2, the working life of extremely growing; 3, very high cost performance; 4, solve diesel engine cold start-up fault; 5, reduce diesel engine starting operating mode, slow-speed of revolution operating mode discharging 40%; 6, be the optimal selection that realizes the high-grade discharging of diesel-oil vehicle; 7, the motor operation is more steady.The utility model more is applicable to modern diesel engines, the bad diesel engine of cold-start performance in the diesel engine for automobile of particularly maximum discharge standard, each emission standard.
The point diameter of the said conductive layer of the utility model is less than the rear end diameter, and the point diameter of said heating layer is less than the rear end diameter.Because the design of two sections different-diameters of heating layer is bigger because of its resistance value at the leading portion of diameter smaller part, therefore heat mainly concentrates on leading portion heater place when energising, and this section is to be deep into and is used for the position of lighting a fire in the engine cylinder-body.
The said heating layer of the utility model sets gradually outer conducting layer and reinforced layer outward, can improve the mechanical property of heater and the performance of anti-external environment.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Embodiment
As shown in Figure 1; The utility model is provided with conductive layer 1, isolation layer 2, heating layer 3, outer conducting layer 4 and reinforced layer 5, and isolation layer 2 is arranged on outside the conductive layer 1, and heating layer 3 is arranged on outside the isolation layer 2; Outer conducting layer 4 is arranged on outside the heating layer 3, and reinforced layer 5 is arranged on outside the outer conducting layer 4.
The point diameter of conductive layer 1 is provided with electrode and inserts chamber 1-1 less than the rear end diameter in the rear end of conductive layer 1, offer through hole 2-1 at the front end of isolation layer 2, and the front end of conductive layer 1 is connected with heating layer 3 through through hole 2-1.
The point diameter of heating layer is less than the rear end diameter.
The utlity model has the characteristics of high temperature resistant, corrosion-resistant, high tenacity, good thermal shock, with the performance comparison such as the following table of the glow plug and the metal electric heating plug of this material:
Claims (3)
1. DENG ceramic electric heating plug; It is characterized in that comprising conductive layer, isolation layer and heating layer; Said isolation layer is arranged on outside the conductive layer; Said heating layer is arranged on outside the isolation layer, electrode is set in the rear end of said conductive layer inserts the chamber, and the front end of said conductive layer is connected with heating layer through the through hole that is arranged on the isolation layer.
2. according to the said DENG ceramic electric heating of claim 1 plug, the point diameter that it is characterized in that said conductive layer is less than the rear end diameter, and the point diameter of said heating layer is less than the rear end diameter.
3. according to claim 1 or 2 said DENG ceramic electric heating plugs, it is characterized in that said heating layer sets gradually outer conducting layer and reinforced layer outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202040851U CN202545092U (en) | 2012-05-09 | 2012-05-09 | Porcelain electric heating plug of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202040851U CN202545092U (en) | 2012-05-09 | 2012-05-09 | Porcelain electric heating plug of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545092U true CN202545092U (en) | 2012-11-21 |
Family
ID=47165736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202040851U Expired - Lifetime CN202545092U (en) | 2012-05-09 | 2012-05-09 | Porcelain electric heating plug of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705131A (en) * | 2012-05-09 | 2012-10-03 | 扬州市飞鹰电子科技有限公司 | Ceramic glow plug of diesel engine |
-
2012
- 2012-05-09 CN CN2012202040851U patent/CN202545092U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705131A (en) * | 2012-05-09 | 2012-10-03 | 扬州市飞鹰电子科技有限公司 | Ceramic glow plug of diesel engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |
|
| CX01 | Expiry of patent term |