CN2691121Y - Sparking plug - Google Patents
Sparking plug Download PDFInfo
- Publication number
- CN2691121Y CN2691121Y CN 200420010675 CN200420010675U CN2691121Y CN 2691121 Y CN2691121 Y CN 2691121Y CN 200420010675 CN200420010675 CN 200420010675 CN 200420010675 U CN200420010675 U CN 200420010675U CN 2691121 Y CN2691121 Y CN 2691121Y
- Authority
- CN
- China
- Prior art keywords
- conductor
- spark plug
- porcelain sleeve
- insulated porcelain
- hollow insulated
- 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 - Fee Related
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- Spark Plugs (AREA)
Abstract
The utility model discloses a spark plug, comprising a hollow insulating porcelain bushing (1) arranged in a metal sheath (2) which is provided with a bend contact. The utility model is characterized in that this sparking plug makes the general system conductor (the center electrode) arranged in the hollow insulating porcelain bushing (1) arranged in the metal sheath (2) into two conductors, a conductor (3) and a conductor (4). A cavity K is formed between the two conductors.
Description
Affiliated technical field
The utility model designs a kind of improved spark plug, and is especially relevant with the spark plug of using with the engine of gasoline as fuel.
Background technology
Known spark plug contains a hollow insulated porcelain sleeve, is screwed with metallic sheath (being used for earth connection) at an end of hollow insulated porcelain sleeve, and the conductor (central electrode) of entire body is installed in hollow insulated porcelain sleeve.There is a flex contact of protruding the end of metallic sheath, and the end points of the conductor of installing in this contact and the hollow insulated porcelain sleeve (central electrode) has an ignition gap.This known spark plug in use has following defective: the one, and spark plug produces carbon distribution in igniting place after using a break time, carbon distribution is in the same place insulator and conductor paste, make hollow insulated porcelain sleeve not have insulating effect, cause the fire that looses during igniting, vehicle launch does not get up; The 2nd, under action of high voltage, will there be the insulator of igniting place of carbon distribution to puncture, spark plug is wracked.
Summary of the invention
The purpose of this utility model provides a kind of spark plug, and this spark plug can effectively prevent diffusing fire and the punch-through that original spark plug in use occurs, and in the useful life of extending plug, saves the vehicle maintenance expense.
Taked following technical scheme for realizing the purpose of this utility model:
The entire body conductor of installing in the hollow insulated porcelain sleeve with the metallic sheath suit (central electrode) is made two joint conductors, forms a cavity between two joint conductors.Occur under the situation of carbon distribution in igniting place like this, because the conductor (central electrode) in the hollow insulated porcelain sleeve is two joint conductors, the space between the two joint conductors forms the space insulating barrier, the fiery phenomenon of loosing also can not occur even igniting place conductor and insulator are stuck with paste together; In addition, owing to do not link to each other between the two joint conductors, only be induced voltage at the high tension voltage of igniting place, can not puncture insulating case, do not damage spark plug.
End conductor in the middle of hollow insulated porcelain sleeve is pointed structure, and two pointed distance is 2～8mm, and optimum distance is 4mm.
In the middle of hollow insulated porcelain sleeve, wherein be carved with groove in the joint conductor.
Description of drawings
Further describe technical characterictic of the present utility model below in conjunction with accompanying drawing:
Accompanying drawing is the sectional structure schematic diagram of an embodiment preferentially selecting for use of the utility model.
Among the figure: 1, between hollow insulated porcelain sleeve 2, metallic sheath 3, conductor 4, conductor K, cavity h, conductor point apart from D, igniting place A, groove
Specific embodiments
As shown in drawings, hollow insulated porcelain sleeve (1) is installed in the metallic sheath (2) that is connected with flex contact, in hollow insulated porcelain sleeve (1) hollow, conductor (3) and conductor (4) are installed, between conductor (3) and conductor (4), be formed with cavity K, conductor (3) and the end of conductor (4) in cavity are pointed structure, and the distance h between two points is 4mm; Between conductor (4) and flex contact, constitute ignition gap D; Centre at conductor (3) is provided with groove A.
Claims (3)
1, a kind of spark plug, this spark plug contains hollow insulated porcelain sleeve (1), hollow insulated porcelain sleeve (1) is installed in the metallic sheath (2) that is connected with flex contact, it is characterized in that: described spark plug is that the entire body conductor that will install in the hollow insulated porcelain sleeve (1) of metallic sheath (2) suit is that central electrode is made by conductor (3) and conductor (4) two joint conductors, forms a cavity K between two joint conductors.
2, by the described spark plug of claim 1, it is characterized in that: described conductor (3) and conductor (4) end that is installed in hollow insulated porcelain sleeve (1) centre is pointed structure, and two pointed distance is 2～8mm, and optimum distance is 4mm.
3, by the described spark plug of claim 1, it is characterized in that: the described centre that is installed in the middle conductor (3) of hollow insulated porcelain sleeve (1) is equipped with groove A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010675 CN2691121Y (en) | 2004-04-20 | 2004-04-20 | Sparking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010675 CN2691121Y (en) | 2004-04-20 | 2004-04-20 | Sparking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2691121Y true CN2691121Y (en) | 2005-04-06 |
Family
ID=34668520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010675 Expired - Fee Related CN2691121Y (en) | 2004-04-20 | 2004-04-20 | Sparking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2691121Y (en) |
-
2004
- 2004-04-20 CN CN 200420010675 patent/CN2691121Y/en not_active Expired - Fee Related
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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 |