CN107845952B - Spark plug electrode - Google Patents
Spark plug electrode Download PDFInfo
- Publication number
- CN107845952B CN107845952B CN201710985590.1A CN201710985590A CN107845952B CN 107845952 B CN107845952 B CN 107845952B CN 201710985590 A CN201710985590 A CN 201710985590A CN 107845952 B CN107845952 B CN 107845952B
- Authority
- CN
- China
- Prior art keywords
- stage part
- stage
- spark plug
- electrode
- plug 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 - Fee Related
Links
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052741 iridium Inorganic materials 0.000 claims description 4
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
Landscapes
- Spark Plugs (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention discloses a spark plug electrode which is of a two-stage stepped structure and comprises a first-stage part and a second-stage part, wherein the second-stage part is connected with the upper end surface of the first-stage part; the outer contour line of the lower end surface of the second-stage part is positioned inside the outer contour line of the upper end surface of the first-stage part; the outer contour line of the upper end surface of the first stage part and the outer contour line of the lower end surface of the second stage part have only one point of coincidence. The invention makes only one side of the spark plug electrode have the ignition function by the arrangement that the outer contour line of the upper end surface of the first stage part of the spark plug electrode is overlapped with the outer contour line of the lower end surface of the second stage part at one point.
Description
Technical Field
The invention relates to the technical field of spark plugs, in particular to a spark plug electrode.
Background
It is well known to use a spark plug to ignite an air and fuel mixture in the combustion chamber of a spark-ignition engine. The performance of the spark plug can directly affect the performance of the engine; if the spark plug incorrectly ignites the air and fuel mixture located in the combustion chamber, there will be at least partially unburned fuel, resulting in a loss of power, reduced fuel efficiency, and increased hydrocarbon emissions. The existing spark plugs all adopt a circumferential ignition mode, and the energy utilization rate is low.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a spark plug electrode.
In order to achieve the purpose, the invention adopts the technical scheme that:
a spark plug electrode, wherein the spark plug electrode is of a two-step structure, and comprises a first-stage part and a second-stage part, and the second-stage part is connected with the upper end face of the first-stage part; the outer contour line of the lower end surface of the second-stage part is positioned inside the outer contour line of the upper end surface of the first-stage part; the outer contour line of the upper end surface of the first stage part and the outer contour line of the lower end surface of the second stage part have only one point of coincidence. Thereby forming the only shortest path from the lower end of the primary section to the upper end of the secondary section, i.e. through said point, preferably said shortest path is a straight line.
In the above spark plug electrode, each of the first stage portion and the second stage portion has a columnar structure.
The spark plug electrode described above, wherein the height of the first stage portion is greater than or equal to the height of the second stage portion.
The spark plug electrode, wherein the specific shape of the first stage part and the second stage part can be selected according to actual needs, and preferably, the outer contour lines of the upper end surface and the lower end surface of the second stage part are both located inside the outer contour line of the first stage part; preferably, the size of the lower end face of the first stage section is greater than or equal to the size of the upper end face of the first stage section.
In the above spark plug electrode, the first stage portion and the second stage portion are both cylindrical, the diameter of the first stage portion is larger than that of the second stage portion, the lower end face of the second stage portion is inscribed in the upper end face of the first stage portion, and the generatrix of the second stage portion passing through the tangent point and the generatrix of the first stage portion passing through the tangent point form the shortest path.
The spark plug electrode, wherein the diameter of the cylinder of the first stage part is 2.5mm, and the diameter of the cylinder of the second stage part is 1.5 mm.
In the above spark plug electrode, in another aspect, the first-stage portion is a cylinder, the second-stage portion is a rectangular parallelepiped, the diameter of the first-stage portion is greater than the length of the widest portion of the second-stage portion, and the second-stage portion has and only has one ridge in the height direction coinciding with a generatrix of the first-stage portion, the ridge and the generatrix forming the shortest path.
The spark plug electrode, wherein the diameter of the cylinder of the first stage part is 2.5mm, the length of the cuboid of the second stage part is 1.5mm, and the width of the cuboid of the second stage part is 1.0 mm.
In the above spark plug electrode, an electrode is welded to an upper end surface of the second stage portion.
The spark plug electrode is an iridium electrode, a platinum electrode or a nickel-clad copper electrode.
The spark plug electrode described above, wherein the electrode is a cone-shaped electrode or a sheet-shaped electrode.
The spark plug electrode is of an integrated structure, and the second-stage part is formed by cutting the material of the first-stage part through a lathe.
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
(1) the invention makes only one side of the spark plug electrode have the ignition function by the arrangement that the outer contour line of the upper end surface of the first stage part of the spark plug electrode is overlapped with the outer contour line of the lower end surface of the second stage part at one point.
Drawings
FIG. 1 is a side view of a first embodiment of a spark plug electrode of the present invention.
FIG. 2 is a top view of a first embodiment of the spark plug electrode of the present invention.
FIG. 3 is a side view of a second embodiment of the spark plug electrode of the present invention.
FIG. 4 is a top view of a second embodiment of the spark plug electrode of the present invention.
In the drawings: 1. a first stage section; 11. a bus bar; 2. a second stage portion; 21. a bus bar; 31. point; 32. the shortest path;
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
The first embodiment:
fig. 1 is a side view of a first embodiment of a spark plug electrode of the present invention, fig. 2 is a plan view of the first embodiment of the spark plug electrode of the present invention, and fig. 1 to 2 show a spark plug electrode of a preferred embodiment, in which the spark plug electrode has a two-step structure, the spark plug electrode includes a first step portion 1 and a second step portion 2, and the second step portion 2 is connected to an upper end surface of the first step portion 1; the outer contour line of the lower end surface of the second stage part 2 is positioned inside the outer contour line of the upper end surface of the first stage part 1; the outer contour of the upper end face of the first stage part 1 coincides with the outer contour of the lower end face of the second stage part 2 by one and only one point 31.
In addition, as a preferred embodiment, the first stage portion 1 and the second stage portion 2 are both columnar structures.
In addition, as a preferred embodiment, the first stage part 1 and the second stage part 2 are both cylinders, the diameter of the first stage part 1 is larger than that of the second stage part 2, the lower end face of the second stage part 2 is inscribed with the upper end face of the first stage part 1, and the point 31 is a tangent point between the lower end face of the second stage part 2 and the upper end face of the first stage part 1. Thus, there is one and only one generatrix 21 of the second stage part 2 coinciding with the generatrix 11 of the first stage part 1, which is the shortest path 32 from the lower end of the first stage part 1 to the upper end of the second stage part 2. Since the path from the other position of the lower end of the first stage part 1 to the other position of the upper end of the second stage part 2 is larger than this unique shortest path 32, the spark plug electrode has a one-sided sparking effect.
Further, as a preferred embodiment, the diameter of the first stage portion 1 is 2.5mm and the diameter of the second stage portion 2 is 1.5 mm.
Further, as a preferred embodiment, the height of the first stage part 1 and the second stage part 2 are each 1.5 mm.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the invention, the upper end face of the second stage part 2 is welded with an electrode.
In further embodiments of the present invention, the electrode is an iridium electrode, a platinum electrode, or a nickel-clad copper electrode.
In a further embodiment of the invention, the electrodes are cone-type electrodes or sheet-type electrodes.
In a further embodiment of the invention, the spark plug electrode is of one-piece construction, and the spark plug electrode is based on a cylindrical first stage part 1, and is cut at one end by a lathe to obtain the cylindrical configuration of the second stage part 2.
Second embodiment:
fig. 3 is a side view of a second embodiment of the spark plug electrode of the present invention, and 4 is a top view of the second embodiment of the spark plug electrode of the present invention, and fig. 3 to 4 show a spark plug electrode of a preferred embodiment, wherein the spark plug electrode has a two-step structure, the spark plug electrode includes a first step portion 1 and a second step portion 2, and the second step portion 2 is connected to an upper end surface of the first step portion 1; the outer contour line of the lower end surface of the second stage part 2 is positioned inside the outer contour line of the upper end surface of the first stage part 1; the outer contour of the upper end face of the first stage part 1 coincides with the outer contour of the lower end face of the second stage part 2 by one and only one point 31.
In addition, as a preferred embodiment, the first stage portion 1 and the second stage portion 2 are both columnar structures.
In addition, as a preferred embodiment, the first stage part 1 is a cylinder, the second stage part 2 is a cuboid, the diameter of the first stage part 1 is larger than the length of the widest part of the second stage part 2, and the second stage part 2 has only one edge in the height direction which is coincident with the generatrix of the first stage part 1. The coincident line is the shortest path from the lower end of the primary portion 1 to the upper end of the secondary portion 2. Since the path from the other position of the lower end of the first stage part 1 to the other position of the upper end of the second stage part 2 is larger than the only shortest path, the spark plug electrode has the function of one-sided sparking.
Further, as a preferred embodiment, the diameter of the primary section 1 is 2.5mm, the length of the secondary section 2 is 1.5mm, and the width of the secondary section 2 is 1.0 mm.
Further, as a preferred embodiment, the height of the first stage part 1 and the second stage part 2 are each 1.5 mm.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the invention, the upper end face of the second stage part 2 is welded with an electrode.
In further embodiments of the present invention, the electrode is an iridium electrode, a platinum electrode, or a nickel-clad copper electrode.
In a further embodiment of the invention, the electrodes are cone-type electrodes or sheet-type electrodes.
In a further embodiment of the invention, the spark plug electrode is of one-piece construction, and the spark plug electrode is based on a cylindrical first stage part 1, and is cut at one end by a lathe to obtain a rectangular configuration for the second stage part 2.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (5)
1. A spark plug electrode, characterized in that the spark plug electrode is of a two-step structure, the spark plug electrode comprises a first-stage portion and a second-stage portion, and the second-stage portion is connected with the upper end face of the first-stage portion;
the outer contour line of the lower end surface of the second-stage part is positioned inside the outer contour line of the upper end surface of the first-stage part;
the outer contour line of the upper end surface of the first-stage part is overlapped with the outer contour line of the lower end surface of the second-stage part by only one point;
the first-stage part and the second-stage part are both columnar structures;
the first-stage part and the second-stage part are both cylinders, the diameter of the first-stage part is larger than that of the second-stage part, and the lower end face of the second-stage part is internally tangent to the upper end face of the first-stage part.
2. The spark plug electrode of claim 1, wherein the diameter of the first stage portion is 2.5mm and the diameter of the second stage portion is 1.5 mm.
3. The spark plug electrode of claim 1, wherein the second stage portion has an electrode welded to an upper end surface thereof.
4. The spark plug electrode of claim 3, wherein the electrode welded to the upper end face of the second stage portion is an iridium, platinum, or nickel-clad copper electrode.
5. The spark plug electrode of claim 3, wherein the electrode welded to the upper end face of the second stage portion is a cone-type electrode or a sheet-type electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985590.1A CN107845952B (en) | 2017-10-20 | 2017-10-20 | Spark plug electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985590.1A CN107845952B (en) | 2017-10-20 | 2017-10-20 | Spark plug electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107845952A CN107845952A (en) | 2018-03-27 |
| CN107845952B true CN107845952B (en) | 2020-11-20 |
Family
ID=61662512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710985590.1A Expired - Fee Related CN107845952B (en) | 2017-10-20 | 2017-10-20 | Spark plug electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107845952B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344899Y (en) * | 1998-09-02 | 1999-10-20 | 黄群生 | Sparking plug electrode connection structure |
| CN2521794Y (en) * | 2002-01-04 | 2002-11-20 | 张金焕 | High-low-voltage electrode environment protection spark plug |
| CN1571227A (en) * | 2003-07-18 | 2005-01-26 | 李文伟 | Spark plug without misfiring when electric leakage and short-circuiting |
| CN2938494Y (en) * | 2006-09-06 | 2007-08-22 | 段建民 | Energy-saving sparking-plug |
| CN207409801U (en) * | 2017-10-20 | 2018-05-25 | 应用太空科技有限公司 | A kind of sparking-plug electrode |
-
2017
- 2017-10-20 CN CN201710985590.1A patent/CN107845952B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344899Y (en) * | 1998-09-02 | 1999-10-20 | 黄群生 | Sparking plug electrode connection structure |
| CN2521794Y (en) * | 2002-01-04 | 2002-11-20 | 张金焕 | High-low-voltage electrode environment protection spark plug |
| CN1571227A (en) * | 2003-07-18 | 2005-01-26 | 李文伟 | Spark plug without misfiring when electric leakage and short-circuiting |
| CN2938494Y (en) * | 2006-09-06 | 2007-08-22 | 段建民 | Energy-saving sparking-plug |
| CN207409801U (en) * | 2017-10-20 | 2018-05-25 | 应用太空科技有限公司 | A kind of sparking-plug electrode |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107845952A (en) | 2018-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6807933B2 (en) | Multiple sparking ignition device | |
| US6531809B1 (en) | Spark plug having ground electrode and intermediate electrode separated by insulating body | |
| EP3206270B1 (en) | Multipoint spark plug and multipoint ignition engine | |
| JP2024517887A (en) | Prechamber spark plug with improved thermal management. | |
| CN107845952B (en) | Spark plug electrode | |
| WO2008017069A3 (en) | One piece shell high thread spark plug | |
| CN107910751B (en) | Spark plug | |
| CN207409801U (en) | A kind of sparking-plug electrode | |
| CN106785926B (en) | A kind of novel automobile spark plug | |
| WO2015043402A2 (en) | Spark plug | |
| CN108023276B (en) | Spark plug | |
| US7902733B2 (en) | Uniquely designed internal combustion engine spark plug that will produce two independent ignition sparks between the spark plug electrodes for each single electrical ignition coil discharge | |
| CN210517077U (en) | High-voltage wire connecting structure for natural gas engine | |
| CN102780160A (en) | High energy spark plug | |
| CN203734136U (en) | Improved structure of sparking plug with carbon formation reduced | |
| CN207588215U (en) | A kind of spark plug | |
| US7259506B1 (en) | Spark plug with perpendicular knife edge electrodes | |
| CN106025802A (en) | Multi-electrode sparking plug | |
| JP5604392B2 (en) | Spark plug | |
| CN204361482U (en) | Multinuclear high energy 360 ° of ignition spark plugs | |
| JP3228696U (en) | Voltage regulator used in automobile ignition system | |
| CN204045934U (en) | Spark plug | |
| CN108336644B (en) | Multiple gap spark plug | |
| CN203119293U (en) | Spark plug and fire guide unit | |
| JPH05315049A (en) | Improvement of negative pole following improvement of point end of positive electrode in spark plug for internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201120 |