CN2406393Y - Annular and front-fitted side electrode parallel spark - Google Patents
Annular and front-fitted side electrode parallel spark Download PDFInfo
- Publication number
- CN2406393Y CN2406393Y CN 00222269 CN00222269U CN2406393Y CN 2406393 Y CN2406393 Y CN 2406393Y CN 00222269 CN00222269 CN 00222269 CN 00222269 U CN00222269 U CN 00222269U CN 2406393 Y CN2406393 Y CN 2406393Y
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- electrode
- annular
- lateral electrode
- spark plug
- side electrode
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Abstract
The utility model relates to an engine, particularly a spark plug used for the ignition of a gasoline engine. The aim of the utility model is to solve the problem existing in the present spark plugs that the accessibility of electric sparks is poor, and the utility model comprises a cylindrical central electrode 2 and a side electrode, wherein, the cylindrical central electrode 2 and the side electrode are separated by an insulator 1. The side electrode is provided with an L-shaped fore-arranged side electrode 6 and an annular side electrode 8, wherein, the L-shaped fore-arranged side electrode 6 bends to the front of the central electrode, the annular side electrode 8 is connected with the fore-arranged side electrode in parallel, and the annular side electrode 8 surrounds the central electrode. The annular side electrode is provided with inner notches 11, 12 and an outer notch, and the utility model has the advantages of long service life of the electrodes, stable and reliable flashover, etc. The accessibility of the transmission of flame toward inflammable mixtures is high, and heat produced by the flashover can be dissipated.
Description
The utility model relates to engine, particularly the spark plug used of gasoline engine ignition.
As everyone knows, spark plug is an important devices in the ignition device of gasoline engine, and the version of spark plug is more.Wherein, formula spark in air gap is plugged with single-sided electrode formula spark plug, many lateral electrodes formula spark plug etc.The single-sided electrode formula spark plug of traditional structure, insulator, the cylindrical central electrode of insulator central part and joining wiring screw rod thereof and wiring nut, the housing that matches with the insulator periphery and a joining L shaped lateral electrode that is bent to central electrode the place ahead thereof are arranged, and the spark gap of spark plug is between central electrode and lateral electrode.Rely on the screw thread on the housing to be fitted in the gasoline engine combustion chamber during use, connect wiring screw rod and wiring nut, reach central electrode with high-pressure ignition wire, lateral electrode is connected and ground connection with engine through housing.After connecting the high voltage pulse that gasoline engine ignition system produces, puncture the spark gap between central electrode and lateral electrode rapidly, produce electric spark, compressed combustion mixture in the ignition engine combustion chamber.This spark plug and since the lateral electrode shield whole discharge end faces of central electrode, the accessibility extreme difference that electric spark is spread to combustion mixture, thereby have the inadequate problem of fuel combustion.
Given this, the purpose of this utility model is to provide annular and the parallel spark plug of preposition lateral electrode that a kind of arcing is reliable and accessibility that electric spark is spread to combustion mixture is good.
The utility model is according to the effect of the existing capacitance component of ignition system of air gap formula spark plug, the effect of Inductive component is arranged again, be that pilot spark exists capacitor discharge and perception discharge simultaneously, when inductive component is had an effect, glow discharge takes place on the electrode centers surface, when capacitive component is had an effect, the theory of arc discharge takes place in the electrode edge edges and corners, employing is on the basis of single-sided electrode formula spark plug, and annular lateral electrode around central electrode in parallel is realized its purpose; And the otch that further in inner arc side, the outer arc side of annular lateral electrode the discharge that can taper off to a point is set is realized its purpose.
Annular of the present utility model and the parallel spark plug of preposition lateral electrode (referring to accompanying drawing), comprise insulated body (1) columniform central electrode (2) and lateral electrode at interval, above-mentioned lateral electrode has curved L shaped preposition lateral electrode (6) to central electrode the place ahead and in parallel with preposition lateral electrode and around the annular lateral electrode (8) of central electrode.
The interior ring side of above-mentioned annular lateral electrode can have the interior otch (11) of at least one U-shaped.
The interior ring side of above-mentioned annular lateral electrode can have the interior otch (12) of at least one V-arrangement.
The outer rim side of above-mentioned annular lateral electrode can have at least one outer otch.
Above-mentioned annular lateral electrode (8) can have the torus concentric with central electrode, at least one pole (9) that is connected torus and housing (5) arranged.
Above-mentioned preposition lateral electrode can shield central electrode end face 1/2nd or central electrode end face 2/3rds.
The end face of the place ahead end face of above-mentioned annular lateral electrode (8) and central electrode (2) is on same plane.
Annular of the present utility model and the parallel spark plug of preposition lateral electrode, after inserting pulsed high-voltage, the ionization gap between the central electrode of high potential and the annular lateral electrode of zero potential and preposition lateral electrode is punctured rapidly, produce electric spark, the combustion mixture in the ignition engine cylinder.
Said structure of the present utility model makes it have following advantage and effect.
One, annular lateral electrode structure of the present utility model, make between annular lateral electrode and the central electrode, looping spark gap 10, has adjustability preferably, the pilot spark that this gap forms is big, spreads the place ahead without any blocking, and pilot spark is not stopped forward to extend, increase the contact area of spark and gaseous mixture, had very good igniting reliability.
Two, preposition side electrode structure of the present utility model, make between preposition lateral electrode and the central electrode, constitute end face spark gap 7, match with above-mentioned annular spark gap, have good adjustability and igniting reliability, the ignition flame accessibility that combustion mixture is spread in cylinder that spark gap forms improves, and is more prone to go deep into cylinder gaseous mixture inside, and ignition performance is even better.
Three, the parallel-connection structure of annular lateral electrode of the present utility model and preposition lateral electrode, the spark from annular spark gap and end face spark gap are jumped out replenishes mutually, polyhedral flame, shape such as the caldera of the common solid figure that forms.During engine running, the indoor combustion mixture of engine combustion is fully burnt, improve the behavior in service of engine, make that engine cold-start is good, explosive force is strong, speed-raising is fast, reduce to extremely low when hydrocarbon, carbon monoxide exhaust emissions and fuel consume.Owing to have the controllability in gap, the skirt section that goes out insulator when the central electrode end nipple is designed in short-term, and the thermal ablation speed of crossing that can prolong the useful life of electrode and slow down electrode reduces the spark plug use cost.
Four, the interior otch of annular lateral electrode of the present utility model and outer notch features, notch features in otch, the U-shaped in the V-arrangement particularly, because notching edge is sharp-pointed, form sharp keen point discharge, this structure is both just under lower pulse voltage, also can obtain to stablize arcing, thereby can improve the reliability of arcing.Moreover interior otch and outer notch features make its electric spark that forms between central electrode and lateral electrode, form the not fixedly slidingtype arcing of arcing point, thereby can prolong electrode life,
Five, the end face of the place ahead end face of annular lateral electrode of the present utility model and central electrode is in conplane structure, otch in the V-arrangement, the interior notch features of U-shaped are particularly arranged again, make the heat of following the arcing spark to be produced, can pass through otch dissipation, thereby can improve the thermal stability of spark plug.
The utility model is suitable for and the supporting use of all kinds of petrol engines.
Below, the utility model is further described to use embodiment and accompanying drawing thereof again.
Brief description of drawings.
Fig. 1 is the structural representation of a kind of annular of the present utility model and the parallel spark plug of preposition lateral electrode.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is a kind of upward view that the spark plug ignition end of otch in the U-shaped is arranged of Fig. 1.
Fig. 4 is a kind of upward view that the spark plug ignition end of otch in the V-arrangement is arranged of Fig. 1.
Embodiment 1
A kind of annular of the present utility model and the parallel spark plug of preposition lateral electrode are shown in accompanying drawing 1,2.By insulator, central electrode, wiring screw rod, wiring nut, housing and formations such as preposition lateral electrode, annular lateral electrode.
Above-mentioned insulator 1 adopts the cylindrical shape porcelain insulator structure of common spark plug.
Above-mentioned central electrode 2 adopts the cylindrical center electrode structure of common spark plug, is packed in the inner chamber of insulator 1, and makes the front end of central electrode stretch out the front end of insulator 1.Stretch out the rear end of the central electrode of insulator rear end and make wiring screw rod 3, supporting wiring nut 4 on wiring screw rod.
Above-mentioned housing 5, adopt the structure of common spark-plug body, its periphery be shaped on can with the joining screw thread of engine, housing is packed in outside the insulator 1, relies on screw thread that this spark plug is fitted on the engine.
Above-mentioned preposition lateral electrode 6, adopt the similar structure of lateral electrode with common single-sided electrode formula spark plug, make shaft-like L shaped, lower end and housing solid welding and have excellent conducting performance, curved the place ahead, upper end to central electrode, being 1/2nd structure of shield central electrode end face, also can be the structure that is shield central electrode end face 2/3rds.Thereby between the upper end of preposition lateral electrode and central electrode, form end face spark gap 7.
Above-mentioned annular lateral electrode 8 is made of annular solid and pole.The annular system is annular.Pole 9 is rod, adopts one, also can adopt two or three or many.One end of pole and annular solid solid welding, the other end and housing 5 solid weldings and have excellent conducting performance.Make central electrode 2 and annular solid concentricity, and the end face that makes the place ahead end face of annular lateral electrode and central electrode at grade, thereby between annular lateral electrode and central electrode, form annular spark gap 10.
Embodiment 2
A kind of annular of the present utility model and the parallel spark plug of preposition lateral electrode are shown in accompanying drawing 1,3.Its structure is substantially the same manner as Example 1.Characteristics are radially to open the interior otch that is shaped at least one U-shaped in the interior ring week of the annular solid of annular lateral electrode, and present embodiment has the interior otch 11 of a U-shaped.
Embodiment 3
A kind of annular of the present utility model and the parallel spark plug of preposition lateral electrode are shown in accompanying drawing 1,4.Its structure is substantially the same manner as Example 2.Characteristics are radially to open the interior otch that is shaped at least one V-arrangement in the interior ring week of the annular solid of annular lateral electrode, and present embodiment has the interior otch 12 of a V-arrangement.
Claims (9)
1, annular and the parallel spark plug of preposition lateral electrode, comprise insulated body (1) columniform central electrode (2) and lateral electrode at interval, it is characterized in that above-mentioned lateral electrode has curved L shaped preposition lateral electrode (6) to central electrode the place ahead and in parallel with preposition lateral electrode and around the annular lateral electrode (8) of central electrode.
2, annular according to claim 1 and the parallel spark plug of preposition lateral electrode, the interior ring side that it is characterized in that said annular lateral electrode has the interior otch (11) of at least one U-shaped.
3, annular according to claim 1 and the parallel spark plug of preposition lateral electrode, the interior ring side that it is characterized in that said annular lateral electrode has the interior otch (12) of at least one V-arrangement.
4, annular according to claim 1 and the parallel spark plug of preposition lateral electrode is characterized in that the outer rim side of said annular lateral electrode has at least one outer otch.
5,, it is characterized in that said annular lateral electrode (8) has the torus concentric with central electrode, at least one pole (9) that is connected torus and housing (5) arranged according to claim 1,2,3 or 4 described annulars and the parallel spark plug of preposition lateral electrode.
6,, it is characterized in that 1/2nd or central electrode end face 2/3rds of said preposition lateral electrode shield central electrode end face according to claim 1,2,3 or 4 described annulars and the parallel spark plug of preposition lateral electrode.
7, according to claim 1,2,3 or 4 described annulars and the parallel spark plug of preposition lateral electrode, the end face that it is characterized in that the place ahead end face of said annular lateral electrode (8) and central electrode (2) is on same plane.
8, annular according to claim 5 and the parallel spark plug of preposition lateral electrode, the end face that it is characterized in that the place ahead end face of said annular lateral electrode (8) and central electrode (2) is on same plane.
9, annular according to claim 6 and the parallel spark plug of preposition lateral electrode, the end face that it is characterized in that the place ahead end face of said annular lateral electrode (8) and central electrode (2) is on same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222269 CN2406393Y (en) | 2000-02-02 | 2000-02-02 | Annular and front-fitted side electrode parallel spark |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222269 CN2406393Y (en) | 2000-02-02 | 2000-02-02 | Annular and front-fitted side electrode parallel spark |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406393Y true CN2406393Y (en) | 2000-11-15 |
Family
ID=33587036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00222269 Expired - Fee Related CN2406393Y (en) | 2000-02-02 | 2000-02-02 | Annular and front-fitted side electrode parallel spark |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406393Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1750338B (en) * | 2004-09-13 | 2010-09-29 | 张景明 | Eccentric cascade sparking plug |
| CN102121448A (en) * | 2011-01-21 | 2011-07-13 | 电子科技大学 | Folding coaxial cavity microwave igniter for engine of automobile |
| CN102146865A (en) * | 2011-01-21 | 2011-08-10 | 电子科技大学 | Igniters of microwave plasma automobile engine |
| CN102299487A (en) * | 2011-05-30 | 2011-12-28 | 郑霞 | Non-uniform electric field spark plug |
-
2000
- 2000-02-02 CN CN 00222269 patent/CN2406393Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1750338B (en) * | 2004-09-13 | 2010-09-29 | 张景明 | Eccentric cascade sparking plug |
| CN102121448A (en) * | 2011-01-21 | 2011-07-13 | 电子科技大学 | Folding coaxial cavity microwave igniter for engine of automobile |
| CN102146865A (en) * | 2011-01-21 | 2011-08-10 | 电子科技大学 | Igniters of microwave plasma automobile engine |
| CN102146865B (en) * | 2011-01-21 | 2012-05-30 | 电子科技大学 | Igniters of microwave plasma automobile engine |
| CN102299487A (en) * | 2011-05-30 | 2011-12-28 | 郑霞 | Non-uniform electric field spark plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |