CN1168013A - Multifunctional fuel jet spark plug - Google Patents
Multifunctional fuel jet spark plug Download PDFInfo
- Publication number
- CN1168013A CN1168013A CN 97107427 CN97107427A CN1168013A CN 1168013 A CN1168013 A CN 1168013A CN 97107427 CN97107427 CN 97107427 CN 97107427 A CN97107427 A CN 97107427A CN 1168013 A CN1168013 A CN 1168013A
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- insulator
- steel body
- spring
- spark plug
- fuel
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- Spark Plugs (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
A multifunctional fuel-spraying spark plug is composed of a steel body including fuel inlet, nozzle and fuel cavity, fixed insulator connected to the steel body and containing spring cavity, moving insulator in the steel body, whose one end extends into said spring cavity, electrode connector on fixed insulator, central electrode in the moving insulator, spring in said spring cavity, whose two ends are connected respectively to electrode connector and central electrode, and bent electrode, and features simple structure, low cost, and the ability to increase the volume efficiency and power of engine.
Description
What the present invention relates to is a kind of spark plug, particularly be a kind of collect fuel spray with ignition function be the multifunctional fuel jet spark plug that is used for explosive motor of one.
At present domestic and international common jet type internal combustion engine, no matter enter the cylinder by the injection of the inlet valve mouth of pipe or from cylinder top direct fuel injection, commonly all finish by injector independently, spark plug only has single ignition function, complex structure, manufacturing cost is higher, and various countries adopt compressed natural gas, particularly China to improve on fuel vehicle engine basis, make it to develop into dual-fuel automobile, the deficiency that exists former engine power to descend.
In view of above reason, the objective of the invention is in order to provide a kind of simple in structure, cost is low, can strengthen engine volume coefficiency, improve power, the scope of application is wide, can be widely used in the multifunctional fuel jet spark plug that integrates burner oil and light a fire of compressed natural gas (CNG) substitute fuel automobile especially.
The object of the present invention is achieved like this: the steel body that contains fuel inlet, jet, fuel cavity is arranged in the spark plug of the present invention, the insulator of deciding that contains spring cavity that is connected with the steel body, moving insulator one end that is arranged in the steel body stretches into spring cavity, deciding has the electrode connector on the insulator, central electrode is contained in the moving insulator, be loaded on the both ends of the spring of deciding in the insulator spring cavity and contact with central electrode with the electrode connector respectively, on the jet place of steel body and central electrode relevant position, elbow electrode (referring to Fig. 1, Fig. 2) is arranged.
Fit and the peripheral seal dissepiment of deciding on insulator and the steel body (referring to Fig. 1, Fig. 2) that is tightly packed in are with it arranged on the above-mentioned moving insulator.
Engage step with deciding the insulator joint on the above-mentioned steel body, decide insulator the seal dissepiment periphery is pressed on the joint step on the steel body (referring to Fig. 1, Fig. 2).
On the fuel cavity of above-mentioned steel body taper hole is arranged, on the moving insulator cone (referring to Fig. 1, Fig. 2) that cooperates with taper hole is arranged, taper hole and cone form axial seal through grinding to form seal band, the elastic force of spring is closed seal band sealing and static state, under the effect of fuel pressure, overcome elastic force and make the axial lifting of insulator, constitute ejector function.
Cone on the above-mentioned moving insulator is positioned at outside the steel fluid fuel chamber, and the spring of deciding in the insulator spring cavity is tension spring (referring to Fig. 1), is used for low-pressure fuel injection.
Cone on the above-mentioned moving insulator is positioned at steel fluid fuel chamber, and the spring of deciding in the insulator spring cavity is compression spring (referring to Fig. 2), is used for middle and high pressure and sprays.
The present invention is connected on the cylinder head.Referring to Fig. 1, Fig. 2, when the present invention works, electrode connector 1 is connect high-voltage line, there are relevant pressure and the fuel of flow time to enter in the steel fluid fuel chamber, overcome spring force or under the spring force effect, make insulator do axial motion, fuel sprays in the cylinder by seal band and the jet through opening on it, the electrode connector successively with spring, moving insulator in the central electrode mutual conduction, cooperate the gap that adapts between the elbow electrode on the steel body when high voltage pulse produces, to discharge arcing and have the plug ignition function.
Compare with existing technology, the present invention has following advantage:
1, simple in structure, easy to manufacture, cost is low;
2, the function of optimization fuel engines, available substitute fuel and pluralities of fuel, environmental pollution is little;
3, can strengthen engine volume coefficiency, can make the compressed natural gas engine improve power and reach about 2%;
4, the present invention, acts on the fuel injection of explosive motor and lights the working medium work done in liquid state applicable to fuel under gaseous state, middle and high pressure and the low-pressure state.
5, the scope of application is wide, is widely used in direct injection ic engine, is specially adapted to compressed natural gas substitute fuel automobile engine.
Describe embodiments of the invention in detail below in conjunction with accompanying drawing:
Fig. 1 is a low-pressure fuel injection spark plug configuration schematic diagram of the present invention.
Fig. 2 is the middle and high pressure jet spark plug of a present invention structural representation.
Embodiment 1:
Fig. 1 has provided the embodiment of the invention 1 low-pressure fuel injection spark plug configuration schematic diagram.Fuel inlet 13, jet 2, fuel cavity 3 are arranged on the steel body 1.Moving insulator 4 places the steel body, one end is fitted in deciding insulator 5 and will be linked in sealing on the moving insulator on mould 6 is pressed on step 7 in the steel body on the steel body, electrode connector 8 one ends stretch into to be decided in the insulator and is connected and scalable elastic force size with tension spring 10 1 ends in being loaded on the spring cavity of deciding in the insulator 9, and an end that is loaded on the interior central electrode 11 of moving insulator is connected with the spring other end.In steel body bottom taper hole 12 is arranged, moving insulator 4 stretches out the fuel cavity place the cone 14 that cooperates with taper hole, forms the axial seal endless belt between taper hole, cone.On the steel body, be positioned at the jet place symmetrical elbow electrode 15 is arranged.The steel body is connected on the cylinder head and direct bonding by the screw thread on it 16.
Embodiment 2:
Fig. 2 has provided the embodiment of the invention 2 middle and high pressure jet spark plug structural representations.Present embodiment 2 is basic same with embodiment 1, do not exist together is that the spring of deciding in the insulator spring cavity is a compression spring 17, its two ends contact with central electrode with the electrode connector respectively, and the cone 18 on the moving insulator is positioned at fuel cavity, and cooperate with taper hole 19 on the steel body and form the axial seal endless belt.
Claims (6)
1, multifunctional fuel jet spark plug, it is characterized in that the steel body that contains fuel inlet, jet, fuel cavity is arranged in the described spark plug, the insulator of deciding that contains spring cavity that is connected with the steel body, moving insulator one end that is arranged in the steel body stretches into spring cavity, deciding has the electrode connector on the insulator, central electrode is contained in the moving insulator, be loaded on the both ends of the spring of deciding in the insulator spring cavity and contact with central electrode with the electrode connector respectively, on the jet place of steel body and central electrode relevant position, the elbow electrode is arranged.
2, multifunctional fuel jet spark plug as claimed in claim 1 is characterized in that having on the described moving insulator fit and the peripheral seal dissepiment of deciding on insulator and the steel body that is tightly packed in it.
3, multifunctional fuel jet spark plug as claimed in claim 2 is characterized in that engaging step with deciding the insulator joint on the described steel body, decides insulator the seal dissepiment periphery is pressed on the joint step on the steel body.
4, multifunctional fuel jet spark plug as claimed in claim 1 is characterized in that on the fuel cavity of described steel body taper hole being arranged, and on the moving insulator cone that cooperates with taper hole is arranged.
5, multifunctional fuel jet spark plug as claimed in claim 4 is characterized in that the cone on the described moving insulator is positioned at outside the steel fluid fuel chamber, and the described spring of deciding in the insulator spring cavity is a tension spring.
6, multifunctional fuel jet spark plug as claimed in claim 4 is characterized in that the cone on the described moving insulator is positioned at steel fluid fuel chamber, and the described spring of deciding in the insulator spring cavity is a compression spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97107427 CN1168013A (en) | 1997-04-10 | 1997-04-10 | Multifunctional fuel jet spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97107427 CN1168013A (en) | 1997-04-10 | 1997-04-10 | Multifunctional fuel jet spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1168013A true CN1168013A (en) | 1997-12-17 |
Family
ID=5169548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97107427 Pending CN1168013A (en) | 1997-04-10 | 1997-04-10 | Multifunctional fuel jet spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1168013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460666C (en) * | 2007-04-09 | 2009-02-11 | 李岳 | Combustion-supporting purifying combustion device of engine |
-
1997
- 1997-04-10 CN CN 97107427 patent/CN1168013A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100460666C (en) * | 2007-04-09 | 2009-02-11 | 李岳 | Combustion-supporting purifying combustion device of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |