CN2459798Y - Spark plug - Google Patents
Spark plug Download PDFInfo
- Publication number
- CN2459798Y CN2459798Y CN 00267088 CN00267088U CN2459798Y CN 2459798 Y CN2459798 Y CN 2459798Y CN 00267088 CN00267088 CN 00267088 CN 00267088 U CN00267088 U CN 00267088U CN 2459798 Y CN2459798 Y CN 2459798Y
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- CN
- China
- Prior art keywords
- electrode
- spark plug
- insulator
- lateral
- lateral electrode
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a spark plug for the ignition of gasoline engines, which is composed of side electrodes and a center electrode. An insulator and an auxiliary electrode are arranged between the side electrodes and the center electrode, and the spark plug has two side electrodes which are arranged at both sides of the connecting line of the center electrode and the auxiliary electrode. The utility model can increase a spark gap without increasing the pulse voltage, and thus, the discharging effect is enhanced.
Description
The utility model relates to a kind of gasoline engine ignition spark plug.
Existing conventional ignition plug has one-sided polar spark plug, the central electrode 4 that matches with the insulator center by the insulator of tubular and the housing of joining wiring screw rod and fixed insulation body thereof and end of thread welding and be bent the lateral electrode that covers the central electrode top, formations such as the awl end of insulator and the internal round chamber of housing screw thread formation hot cell.During use in the internal thread that is threaded into petrolic cylinder head of housing (ground connection).High-voltage conducting wires passes to wiring screw rod with high-voltage pulse, makes high-voltage pulse pass to central electrode, and forms the discharge spark gap between the lateral electrode.When engine ignitor is worked, under the effect of the high-voltage pulse that electric pulse generator produced, produce ionization channels between central electrode and lateral electrode, form electric spark, compressed combustion mixture in the ignition engine combustion chamber.The shortcoming of this conventional ignition plug is: one, lateral electrode covers spark, and absorbs energy, makes gaseous mixture fully not burn.Two, arcing distance is short, and spark gap (ionization channels) is between 0.6～0.9mm.During igniting, the part of gaseous mixture can absorb the heat of generation when discharging and because of ionization activates, produce chemical reaction, forms fire and examines.Because being formed on apart from the lateral electrode place of fire nuclear is again because lateral electrode links to each other with housing, so absorbed more heat.As if strengthening spark gap, make spark away from lateral electrode, then " the flame arrest effect " of lateral electrode reduction, heat energy reduces, and ignitability strengthens, but the spark gap increasing needs the raising pulse voltage, because power supply can not provide enough voltage.Make that catching fire appears in spark plug, can not light gaseous mixture.Under the condition that supply voltage allows, always strengthen spark gap as far as possible, with economy and the reduction discharge of harmful gases amount that improves fuel oil.
Goal of the invention of the present utility model is to provide a kind of spark plug that can the enhanced discharge effect.
The utility model adopts following technical scheme to realize its goal of the invention:
The utility model is a kind of gasoline engine ignition spark plug, is made up of lateral electrode 1 and central electrode 2, is provided with insulator 3 between lateral electrode 1 and central electrode 2, is provided with auxiliary electrode 4 between lateral electrode 1 and central electrode 2.
Compared with prior art, the utlity model has following advantage:
1. the utility model auxiliary electrode can strengthen spark gap under the situation that does not improve pulse voltage, promptly strengthens the distance between central electrode and the lateral electrode, has reduced " the flame arrest effect " of lateral electrode, ignitability is strengthened, thereby strengthened discharge effect.
2. central electrode and lateral electrode are positioned at the both sides that spark plug is installed the centre of gyration, can further increase spark gap in the confined space of existing spark plug, thus further enhanced discharge effect.
3. the utility model adopts two lateral electrodes and is positioned at auxiliary electrode and the both sides of central electrode line, increases the degree that lateral electrode departs from line, can further increase spark gap in limited space, thus further enhanced discharge effect.
4. the utility model utilization changes these technical measures of gap between housing and the insulator, makes it not only can be applicable to low speed engine, and can be suitable for high speed engine, so the utlity model has widely applicable advantage.
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is a structure vertical view of the present utility model.
With reference to the accompanying drawings, embodiment of the present utility model being done one describes in detail:
The utility model is a kind of gasoline engine ignition spark plug, form by lateral electrode 1 and central electrode 2, between lateral electrode 1 and central electrode 2, be provided with insulator 3, between lateral electrode 1 and central electrode 2, be provided with auxiliary electrode 4, central electrode 2 and lateral electrode 1 are positioned at the both sides that spark plug is installed the centre of gyration, the line of lateral electrode 1 off-center electrode 1 and auxiliary electrode 4, insulator 3 is trapped among central electrode 2 wherein, be provided with housing 5 in the outside of insulator 3, housing 5 links to each other with lateral electrode 1, be provided with the gap between head one end 31 of insulator 3 and the housing 5, in the present embodiment, lateral electrode 1 has two and be positioned at the line both sides of central electrode 1 and auxiliary electrode 4, and the head of insulator 3 is a long waist shaped.
Claims (6)
1. gasoline engine ignition spark plug, form by lateral electrode (1) and central electrode (2), between lateral electrode (1) and central electrode (2), be provided with insulator (3), it is characterized in that between lateral electrode (1) and central electrode (2), being provided with auxiliary electrode (4).
2. spark plug according to claim 1 is characterized in that central electrode (2) and lateral electrode (1) are positioned at the both sides that spark plug is installed the centre of gyration.
3. spark plug according to claim 1 and 2 is characterized in that the line of lateral electrode (1) off-center electrode (1) and auxiliary electrode (4).
4. spark plug according to claim 3 is characterized in that lateral electrode (1) has two and be positioned at the line both sides of central electrode (1) and auxiliary electrode (4).
5. according to claim 1 or 2 or 3 or 4 described spark plugs, it is characterized in that insulator (3) is trapped among central electrode (2) wherein, be provided with housing (5) in the outside of insulator (3), housing (5) links to each other with lateral electrode (1), is provided with the gap between head one end (31) of insulator (3) and the housing (5).
6. spark plug according to claim 5, the head that it is characterized in that insulator (3) is a long waist shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00267088 CN2459798Y (en) | 2000-12-26 | 2000-12-26 | Spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00267088 CN2459798Y (en) | 2000-12-26 | 2000-12-26 | Spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2459798Y true CN2459798Y (en) | 2001-11-14 |
Family
ID=33621009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00267088 Expired - Lifetime CN2459798Y (en) | 2000-12-26 | 2000-12-26 | Spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2459798Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162853A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | A kind of double discharge mode plasma igniters |
| CN109162854A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | A kind of control method of double discharge mode plasma igniters |
| CN109162852A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | Double discharge mode plasma igniters with multianode structure |
-
2000
- 2000-12-26 CN CN 00267088 patent/CN2459798Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162853A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | A kind of double discharge mode plasma igniters |
| CN109162854A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | A kind of control method of double discharge mode plasma igniters |
| CN109162852A (en) * | 2018-10-26 | 2019-01-08 | 大连民族大学 | Double discharge mode plasma igniters with multianode structure |
| CN109162854B (en) * | 2018-10-26 | 2021-05-04 | 大连民族大学 | Control method of plasma igniter with double discharge modes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20101226 Granted publication date: 20011114 |