CN103746292A - Spark plug - Google Patents
Spark plug Download PDFInfo
- Publication number
- CN103746292A CN103746292A CN201310725740.7A CN201310725740A CN103746292A CN 103746292 A CN103746292 A CN 103746292A CN 201310725740 A CN201310725740 A CN 201310725740A CN 103746292 A CN103746292 A CN 103746292A
- Authority
- CN
- China
- Prior art keywords
- groove
- spark plug
- electrode
- horizontal segment
- central 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.)
- Pending
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012212 insulator Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a spark plug. The spark plug comprises a center electrode and a side electrode. The side electrode is L-shaped; the length of a horizontal segment is greater than the distance between a vertical segment and the center electrode; a position, which is disposed right below the center electrode, of the horizontal segment is provided with a groove; and the inner wall of the groove is uneven. According to the invention, the horizontal segment of a conventional side electrode is provided with a groove structure, and the inner wall of the groove is uneven so that the discharge contact surface is increased, the discharge efficiency is enhanced, the uneven surface enables carbon formation to be reduced, and the service life of the electrodes is prolonged.
Description
Technical field
The present invention relates to auto parts machinery technical field, especially a kind of spark plug.
Background technology
Spark plug is the important accessory in automobile engine, existing conventional spark plug basic structure is all sheathed metal shell outside insulator, and central electrode is set in insulator, and metal shell connects lateral electrode, two electrodes are close at spark plug tip place, to form sparking electrode pair.Conventional lateral electrode is L-type structure, and horizontal segment centre is just to central electrode, this simple in structure easy to use, but easily on electrode, produces carbon distribution, causes useful life short, affects discharge effect.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of spark plug, structure is ingenious, long service life.
In order to realize foregoing invention object, the invention provides following technical scheme: a kind of spark plug, comprise central electrode and lateral electrode, described lateral electrode is L-type, the length of its horizontal segment is greater than the distance between vertical section and central electrode, this horizontal segment be positioned at central electrode under position be provided with groove, this groove inwall is made as uneven.
Further, the form fit of described groove and central electrode.
Further, described groove inwall is made as teeth groove shape.
Compared with prior art, the present invention has the following advantages: will on the horizontal segment of traditional lateral electrode, groove structure be set, and this groove inwall is uneven, increase electric discharge contact-making surface, improve discharging efficiency, rough surface is reduced carbon distribution and is produced, and extends the useful life of electrode.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, describe the present invention, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
A kind of spark plug as shown in Figure 1, comprise central electrode 1 and lateral electrode 2, described lateral electrode 2 is L-type, and the length of its horizontal segment is greater than the distance between vertical section and central electrode 1, this horizontal segment be positioned at central electrode 1 under position be provided with groove 21, these groove 21 inwalls are made as uneven.The form fit of described groove 21 and central electrode 1, as shown in Figure 1, central electrode 1 is hemispherical, groove 21 is arc groove.
Described groove 21 inwalls are made as teeth groove shape, and the electric discharge between central electrode 1 and this lateral electrode 2, acts directly in this teeth groove, and point of discharge increases, effective, and the carbon distribution of generation is deposited in teeth groove, can not affect next electric discharge phenomena.
Claims (3)
1. a spark plug, comprise central electrode and lateral electrode, it is characterized in that: described lateral electrode is L-type, the length of its horizontal segment is greater than the distance between vertical section and central electrode, this horizontal segment be positioned at central electrode under position be provided with groove, this groove inwall is made as uneven.
2. spark plug as claimed in claim 1, is characterized in that: the form fit of described groove and central electrode.
3. spark plug as claimed in claim 2, is characterized in that: described groove inwall is made as teeth groove shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725740.7A CN103746292A (en) | 2013-12-25 | 2013-12-25 | Spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310725740.7A CN103746292A (en) | 2013-12-25 | 2013-12-25 | Spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103746292A true CN103746292A (en) | 2014-04-23 |
Family
ID=50503297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310725740.7A Pending CN103746292A (en) | 2013-12-25 | 2013-12-25 | Spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103746292A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200952U (en) * | 1985-04-01 | 1986-04-09 | 南京电瓷总厂火花塞分厂 | Convex earth electrode spark plug |
| DE4140834A1 (en) * | 1990-12-11 | 1992-06-17 | Sei Young Kim | IC engine spark plug with earth and centre electrode - has projections on opposite electrode faces, each with sharp edge for charge accumulation |
| CN2235165Y (en) * | 1994-11-30 | 1996-09-11 | 黄才乐 | Energy-saving spark plug |
| WO1998053540A1 (en) * | 1997-05-20 | 1998-11-26 | Dawson Royalties Ltd. | Spark plug |
| US20100133976A1 (en) * | 2008-11-30 | 2010-06-03 | Max Siegel | Maxx fire spark plug |
| CN103427335A (en) * | 2012-05-15 | 2013-12-04 | 曼柴油机和涡轮机欧洲股份公司 | Spark plugs for internal combustion engines |
-
2013
- 2013-12-25 CN CN201310725740.7A patent/CN103746292A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85200952U (en) * | 1985-04-01 | 1986-04-09 | 南京电瓷总厂火花塞分厂 | Convex earth electrode spark plug |
| DE4140834A1 (en) * | 1990-12-11 | 1992-06-17 | Sei Young Kim | IC engine spark plug with earth and centre electrode - has projections on opposite electrode faces, each with sharp edge for charge accumulation |
| CN2235165Y (en) * | 1994-11-30 | 1996-09-11 | 黄才乐 | Energy-saving spark plug |
| WO1998053540A1 (en) * | 1997-05-20 | 1998-11-26 | Dawson Royalties Ltd. | Spark plug |
| US20100133976A1 (en) * | 2008-11-30 | 2010-06-03 | Max Siegel | Maxx fire spark plug |
| CN103427335A (en) * | 2012-05-15 | 2013-12-04 | 曼柴油机和涡轮机欧洲股份公司 | Spark plugs for internal combustion engines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140423 |