CN102623896A - Spark plug - Google Patents
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- CN102623896A CN102623896A CN2012101201653A CN201210120165A CN102623896A CN 102623896 A CN102623896 A CN 102623896A CN 2012101201653 A CN2012101201653 A CN 2012101201653A CN 201210120165 A CN201210120165 A CN 201210120165A CN 102623896 A CN102623896 A CN 102623896A
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Abstract
The invention relates to a spark plug, which comprises an insulator, a central electrode, a shell and a grounding electrode, wherein the insulator is provided with an axle hole which is axially extended; the central electrode is inserted into and penetrates through the axle hole of the insulator, and the end part of the central electrode is exposed; the shell comprises an ignition cavity, an acceleration channel and an air intake cavity, which penetrate through the shell; the aperture of the acceleration channel is smaller than those of the ignition cavity and the air intake cavity; the shell is sleeved on the surface of the insulator in a way that the end part of the central electrode is positioned in the ignition cavity; and the grounding electrode is arranged on the inner wall of the ignition cavity of the shell. The spark plug has the advantages of corrosion resistance, high ignition efficiency, energy saving and emission reduction.
Description
Technical field
The present invention relates to a kind of spark plug that in internal combustion engine, uses.
Background technology
Spark plug is to be installed on the internal combustion engine (engine), is used for the sparking of the mist in the combustion chamber.See also Fig. 1, it is the structural representation of spark plug 10 in the prior art.This spark plug 10 comprises a central electrode 12, insulator 14, housing 16 and grounding electrode 18.This insulator 14 is a ceramics insulator, has the axis hole that extends along axis direction, and this central electrode 12 inserts the axis hole that runs through this insulator 14.This housing 16 is arranged on the periphery of this insulator 14.This grounding electrode 18 is connected with the end of this housing 16, and bending extension is relative with central electrode 12, and forms the gap of sparkover between the central electrode 12.Effect through pulse electric power between this central electrode 12 and the grounding electrode 18 produces electric arc, and then produces electric spark and light the mist around the electrode, reaches the purpose of automatic igniting.
Because the operational environment of spark plug is exceedingly odious, this central electrode 12 needs igniting many times under the high-temperature and high-pressure conditions with grounding electrode 18 in the combustion chamber, and can occur deposit on this electrode and cause its corrosion, causes being worse off of spark plug.In order to slow down the speed of worsening of spark plug, the technical staff has carried out various improvement to spark plug.Like the corrosion resistance through improving electrode material or increase the etching problem that number of electrodes overcomes electrode; Or central electrode and grounding electrode be arranged in the cavity of housing.But the corrosion resistance that improves electrode material need propose new electrode material, under the situation that adopts existing electrode material, can't change the etching problem of electrode; For a plurality of electrodes are set simultaneously, because these a plurality of electrodes expose to the open air equally in the combustion chamber, will suffer erosion simultaneously, can not fundamentally solve the anticorrosive problem of electrode; And for central electrode and grounding electrode are arranged in the cavity of housing; The distance that the spark that two electrodes are produced gets into the combustion chamber increases; And then make the burning time of the mist of combustion chamber produce delay, because the compression stroke of internal combustion engine operation and the time of expansion stroke are the set time, then the combustion of mixed gas time shortens; Reduce the combustion efficiency of internal combustion engine to a certain extent, be unfavorable for energy-conserving and environment-protective.
Summary of the invention
The shortcoming that the objective of the invention is to overcome prior art provides a kind of ignition effectiveness high and erosion-resisting spark plug with not enough.
The present invention realizes through following technical scheme: a kind of spark plug comprises insulator, central electrode, housing and grounding electrode.It has the axis hole that extends along axis direction this insulator.This central electrode inserts and runs through the axis hole of this insulator and expose the end.This housing comprises igniting chamber, accelerated passage and the inlet chamber that runs through its upper and lower side in regular turn, and the aperture of this accelerated passage is less than the aperture of this igniting chamber and inlet chamber, and this housing is set in this insulator surface and makes the end of central electrode be positioned at this igniting chamber.This grounding electrode be arranged on this housing be positioned at its igniting chamber inwall on.
Further, this igniting chamber is a cylindricality cavity or horn-like cavity; Perhaps this igniting chamber comprises the cylindricality cavity and the horn-like cavity of connection in regular turn, and the slot of this horn-like cavity is connected with this accelerated passage.
Further, this accelerated passage is the cylindricality cavity.
Further, this inlet chamber is cylindricality cavity or horn-like cavity; Perhaps this inlet chamber comprises the horn-like cavity and the cylindricality cavity of connection in regular turn, and the slot of this horn-like cavity is connected with this accelerated passage.
Further, have spiral helicine groove or protuberance on the inwall of this igniting chamber, accelerated passage and inlet chamber.
Further, this grounding electrode is circular along section perpendicular to axial direction, and the end of this central electrode is positioned on the center of circle of the edge of this a grounding electrode section perpendicular to axial direction.
Perhaps this grounding electrode is a stage body; On the inwall of the housing between this igniting chamber and the accelerated passage; The centre of this grounding electrode have one run through bottom surface on it through hole; This through hole is communicated with this accelerated passage, and this central electrode is positioned at the top of this grounding electrode in the face of the upper bottom surface of this central electrode.
Or this grounding electrode is to have the spicule of radial width or for plates, it is arranged on the igniting cavity wall of housing, and along the radial finger in igniting chamber to central electrode.Further, comprise at least two grounding electrodes, it is equal angular to be arranged on the igniting cavity wall of housing.
Further, the end of this central electrode is " one " font or " ten " font or circle.
This housing is a metal shell, and itself and grounding electrode are one-body molded.
With respect to prior art, spark plug provided by the invention is arranged on central electrode and grounding electrode in the igniting chamber of housing, makes it have corrosion resistance.Further; Through igniting chamber, accelerated passage and inlet chamber are set; When making the spark process accelerated passage of in the igniting chamber, lighting a fire; The structure that narrows rapidly through the aperture of accelerated passage sets out spark with the flow velocity of rapid increase spark air-flow more fast, efficiently spark is guided in the combustion chamber of internal combustion engine.Thereby shortened the time of kindling material arrival combustion chamber, promptly increased the burning time of the combustion mixture in the combustion chamber relatively, fuel has been burnt in internal combustion engine more fully reach the effect of efficient igniting, energy-saving and emission-reduction.
Description of drawings
Fig. 1 is the structural representation of spark plug 10 in the prior art.
Fig. 2 is the structural representation of the spark plug 100 of the embodiment of the invention one.
Fig. 3 is the structural representation of the spark plug 200 of the embodiment of the invention two.
Fig. 4 is the structural representation of the spark plug 300 of the embodiment of the invention three.
Fig. 5 is the structural representation of the spark plug 400 of the embodiment of the invention four.
Fig. 6 is the structural representation of the spark plug 500 of the embodiment of the invention five.
Fig. 7 is the cutaway view of A direction shown in Figure 2.
Fig. 8 is the cutaway view of A direction shown in Figure 4.
Fig. 9 is the cutaway view of A direction shown in Figure 5.
Figure 10 is the cutaway view of A direction shown in Figure 6.
Figure 11 is the structural representation of the spark plug 600 of the embodiment of the invention six.
Figure 12 is the structural representation of the spark plug 700 of the embodiment of the invention seven.
Embodiment
Embodiment 1
See also Fig. 2, it is the structural representation of the spark plug 100 of the embodiment of the invention one.This spark plug 100 comprises a central electrode 120, insulator 140, housing 160 and grounding electrode 180.This insulator 140 is a ceramics insulator, and it has the axis hole that extends along axis direction.This central electrode 120 inserts and runs through the axis hole of this insulator 140 and expose end 122.This housing 160 is a hollow structure, is set in the surface of this insulator 140, and makes the end 122 of this central electrode 120 be positioned at the cavity of housing 160.This grounding electrode 180 is arranged on the inwall of cavity of this housing.The outer wall of this housing 160 is provided with screw thread.
Particularly, this housing 160 comprises igniting chamber 161, accelerated passage 162 and the inlet chamber 163 that runs through its upper and lower side vertically in regular turn.This igniting chamber 161 comprises the first circular cylindrical cavity 161a and the first horn-like cavity 161b of connection in regular turn; The aperture of the wide mouth end of this first horn-like cavity 161b is consistent with the aperture of this first circular cylindrical cavity 161a, and the slot end of this first horn-like cavity 161b is connected with this accelerated passage 162.This accelerated passage 162 is a circular cylindrical cavity, and its aperture is consistent with the aperture of the slot end of the first horn-like cavity 161b in this igniting chamber 161.This inlet chamber 163 comprises the second horn-like cavity 163b and the second circular cylindrical cavity 163a of connection; This second is that the aperture of slot end of horn-like cavity 163b is consistent with the aperture of this accelerated passage 162 and be connected with it; The aperture of the wide mouth end of this second horn-like cavity 163b is consistent with the aperture of this second circular cylindrical cavity 163a, and this second circular cylindrical cavity 163a is towards the combustion chamber of internal combustion engine.
Please consult Fig. 7 simultaneously, it is the cutaway view of A direction shown in Figure 2.This grounding electrode 180 is circular along the section of direction perpendicular to axial direction, and it is located on the inwall of the first circular cylindrical cavity 161a in igniting chamber 161 of housing 160.This grounding electrode 180 is formed in one with this housing 160.This central electrode 120 can be positioned on this grounding electrode 180 one with its axially on the center of circle on vertical plane, in the present embodiment specifically in the heart at ring.
When pulse firing; Be full of mist in each cavity of the housing 160 of this spark plug 100; Mist between this central electrode 120 and the grounding electrode 180 around the discharge ignitor; The chamber 161 interior gases of lighting a fire this moment are at first ignited and are expanded rapidly, and the pressure in this igniting chamber 161 increase rapidly, promote spark and discharge to inlet chamber 163 directions.When spark process accelerated passage 162, because narrow rapidly in the aperture of accelerated passage 162, the flow velocity during this accelerated passage 162 of spark air-flow process increases, thereby spark is seted out more fast, thereby efficiently spark is guided in the combustion chamber of internal combustion engine.In order to make 162 pairs of spark air-flows of accelerated passage accelerator more effective; The length of this accelerated passage 162 should be greater than the length of this inlet chamber 163; And volume that should igniting chamber 161 should be greater than the volume of this accelerated passage, quickens through accelerated passage 162 to guarantee after 161 igniting of igniting chamber, at first the ignite gas in igniting chamber 161 of central electrode 161 again.Further, the length of this inlet chamber 163 be about this igniting chamber 161, accelerated passage 162 and inlet chamber 163 total length 1/6～1/5.
And when the induction stroke of internal combustion engine, the pressure in the inlet chamber 163 is greater than the pressure in the igniting chamber 161, and mist gets into igniting chamber 161 from inlet chamber 163.When mist process accelerated passage 162; Because narrow rapidly in the aperture of accelerated passage 162; Flow velocity during this accelerated passage 162 of airflow of mixed gas process increases; Mist more promptly is full of igniting chamber 161, thereby efficiently the combustion chamber of mist by internal combustion engine is guided in the igniting chamber 161.
Further; Can know that by prior art the compression stroke of internal combustion engine operation and the time of expansion stroke are the set time, at the piston of internal combustion engine during near top dead centre; Spark plug sends electric spark; Light compressed combustion mixture, burning mixture is in the time of expansion stroke internal combustion and discharge heat energy, promotes piston and is moved to lower dead center by top dead centre.Therefore; Flow velocity increases when in the igniting chamber 161 of housing, being lighted gas through accelerated passage 162; Make spark arrive the combustion chamber with the speed of more accelerating; Shortened the time that kindling material arrives the combustion chamber, overcome, increased the burning time of the combustion mixture in the combustion chamber in expansion stroke relatively because of causing spark to get into the defective of the distance increase of combustion chamber in the cavity that central electrode and grounding electrode is arranged on housing; Fuel is burnt in internal combustion engine more fully, reach the effect of energy-saving and emission-reduction.
Embodiment 2
See also Fig. 3, it is the structural representation of the spark plug 200 of the embodiment of the invention two.The structure of the spark plug of itself and embodiment one is roughly the same, and difference only is: housing 260 comprises igniting chamber 261, accelerated passage 262 and the inlet chamber 263 that runs through its upper and lower side vertically in regular turn.This igniting chamber 261 is a horn-like cavity, and its slot end is connected with this accelerated passage 262.This accelerated passage 262 is a circular cylindrical cavity, and its aperture is consistent with the aperture of the slot end of the horn-like cavity in this igniting chamber 261.This inlet chamber 263 is similarly a horn-like cavity, and the aperture of its slot end is consistent with the aperture of this accelerated passage 262 and be connected with it, and its wide mouth end is towards the combustion chamber of internal combustion engine.The inwall in the igniting chamber 261 of this housing is as grounding electrode 280, and the end 122 of the central electrode 120 of this spark plug 200 is positioned at this igniting chamber 261, and perpendicular nearest inwall point carries out the arcing discharge.Further, have spiral helicine groove or protuberance on the inwall of this igniting chamber 261, accelerated passage 262 and inlet chamber 263, when the combustion chamber discharges, form eddy airstream, with the efficient of further raising spark release to guide the spark air-flow in it.
Embodiment 3
See also Fig. 4, it is the structural representation of the spark plug 300 of the embodiment of the invention three.The structure of the spark plug of itself and embodiment one is roughly the same, and difference only is: housing 360 comprises igniting chamber 361, accelerated passage 362 and the inlet chamber 363 that runs through its upper and lower side vertically in regular turn.This igniting chamber 361, accelerated passage 362 and inlet chamber 363 are circular cylindrical cavity, and the aperture of this accelerated passage 362 is less than the aperture of this igniting chamber 361 and inlet chamber 363.Please consult Fig. 8 simultaneously, it is the cutaway view of A direction shown in Figure 4.Further, comprise the grounding electrode 380 of two sheets, the sheet plane parallel of this grounding electrode 380 is axial in cavity, and along on the inwall that radially is installed in igniting chamber 361 in this igniting chamber 361.The grounding electrode 380 of these two sheets is symmetrical set.The setting of this grounding electrode 380 more helps improving the ignition effectiveness of this spark plug 300.
Embodiment 4
See also Fig. 5, it is the structural representation of the spark plug 400 of the embodiment of the invention four.The structure of the spark plug of itself and embodiment one is roughly the same, and difference only is: housing 460 comprises igniting chamber 461, accelerated passage 462 and the inlet chamber 463 that runs through its upper and lower side vertically in regular turn.This igniting chamber 461 comprises the first circular cylindrical cavity 461a and the first horn-like cavity 461b of connection in regular turn; The aperture of the wide mouth end of this first horn-like cavity 461b is consistent with the aperture of this first circular cylindrical cavity 461a, and the slot end of this first horn-like cavity 461b is connected with this accelerated passage 462.This accelerated passage 462 is a circular cylindrical cavity, and its aperture is consistent with the aperture of the slot end of the first horn-like cavity 461b in this igniting chamber 461.This inlet chamber 463 comprises the second horn-like cavity 463b and the second circular cylindrical cavity 463a of connection; This second is that the aperture of slot end of horn-like cavity 463b is consistent with the aperture of this accelerated passage 462 and be connected with it; The aperture of the wide mouth end of this second horn-like cavity 463b is consistent with the aperture of this second circular cylindrical cavity 463a, and this second circular cylindrical cavity 463a is towards the combustion chamber of internal combustion engine.
Please consult Fig. 9 simultaneously, it is the cutaway view of A direction shown in Figure 5.Further, this spark plug comprises the grounding electrode 480 of three sheets, and the sheet plane parallel of this grounding electrode 480 is axial in cavity, and along on the inwall that radially is installed in the first circular cylindrical cavity 461a and the first horn-like cavity 461b in this igniting chamber 461.Angle between the grounding electrode 480 of these three sheets equates that it is three large spaces such as grade that the chamber 461 of should lighting a fire is divided equally.The setting of this grounding electrode 480 more helps improving the ignition effectiveness of this spark plug 300.
Embodiment 5
Please consult Fig. 6 and Figure 10 simultaneously, wherein, Fig. 6 is the structural representation of the spark plug 500 of the embodiment of the invention five, and Figure 10 is the cutaway view of A direction shown in Figure 6.The spark plug 500 of the embodiment of the invention five is roughly the same with the structure of the spark plug of embodiment four; Difference only is: this spark plug 500 comprises a needle-like grounding electrode 580 with a radial width; This grounding electrode 580 is installed on the inwall of the first circular cylindrical cavity 561a in igniting chamber, and points to the end 122 of central electrode 120.The setting of this grounding electrode 580 more helps improving the ignition effectiveness of this spark plug 500.Further, have spiral helicine groove or protuberance on the inwall of this igniting chamber 561, accelerated passage 562 and inlet chamber 563, when the combustion chamber discharges, form eddy airstream, with the efficient of further raising spark release to guide the spark air-flow in it.
Embodiment 6
Please consult Figure 11 simultaneously, it is the structural representation of the spark plug 600 of the embodiment of the invention six.The spark plug 600 of the embodiment of the invention six is roughly the same with the structure of the spark plug of embodiment four, and difference only is: housing 660 comprises igniting chamber 661, accelerated passage 662 and the inlet chamber 663 that runs through its upper and lower side vertically in regular turn.This igniting chamber 661 is the cylindricality cavity with accelerated passage 662, and the aperture of this accelerated passage 662 is less than the aperture in this igniting chamber 661.This inlet chamber 663 comprises the second horn-like cavity 663b and the second circular cylindrical cavity 663a of connection; The aperture of the slot end of this second horn-like cavity 663b is consistent with the aperture of this accelerated passage 662 and be connected with it; The aperture of the wide mouth end of this second horn-like cavity 663b is consistent with the aperture of this second circular cylindrical cavity 663a, and this second circular cylindrical cavity 663a is towards the combustion chamber of internal combustion engine.Further; Comprise a grounding electrode 680, this grounding electrode 680 is a stage body, on the inwall of the housing between this igniting chamber 661 and the accelerated passage 662; Have wherein one run through bottom surface on it through hole, the aperture of this through hole is consistent with the aperture of this accelerated passage 662.This grounding electrode 680 is circular along the section of direction perpendicular to axial direction.This central electrode 120 is positioned at the top of this grounding electrode 180 in the face of the upper bottom surface of this central electrode 120.This grounding electrode 680 is formed in one with this housing 660.
Embodiment 6
Please consult Figure 12 simultaneously, it is the structural representation of the spark plug 700 of the embodiment of the invention seven.The structure of the spark plug of itself and embodiment one is roughly the same; Difference only is: " one " font that extend for the inwall to housing 160 end of the central electrode 720 of spark plug 700 722, and with further to guarantee the validity in the arcing gap between central electrode 720 and the grounding electrode 180.Wherein, the end 722 of this central electrode 720 can also replace with " ten " font or circle etc.
With respect to prior art, spark plug provided by the invention is arranged on central electrode and grounding electrode in the igniting chamber of housing, makes it have corrosion resistance.Further; Through the accelerated passage of aperture less than igniting chamber and inlet chamber is set in housing, when making the spark of in the igniting chamber, lighting a fire pass through accelerated passage, the structure that narrows rapidly through the aperture of accelerated passage is with the flow velocity of rapid increase spark air-flow; Spark is seted out more fast; Efficiently spark is guided in the combustion chamber of internal combustion engine, thereby shortened the time of kindling material arrival combustion chamber, promptly increased the burning time of the combustion mixture in the combustion chamber relatively; Fuel is burnt in internal combustion engine more fully, reach the effect of efficient igniting, energy-saving and emission-reduction.
The present invention is not limited to above-mentioned execution mode; If various changes of the present invention or distortion are not broken away from the spirit and scope of the present invention; If these changes and distortion belong within claim of the present invention and the equivalent technologies scope, then the present invention also is intended to comprise these changes and distortion.
Claims (10)
1. a spark plug is characterized in that, comprises
---insulator, it has the axis hole that extends along axis direction;
---central electrode, its insertion run through the axis hole of this insulator and expose the end;
---housing, it comprises igniting chamber, accelerated passage and the inlet chamber that runs through its upper and lower side in regular turn, and the aperture of this accelerated passage is less than the aperture of this igniting chamber and inlet chamber, and this housing is set in this insulator surface and makes the end of central electrode be positioned at this igniting chamber;
---grounding electrode, its be arranged on this housing be positioned at its igniting chamber inwall on.
2. spark plug according to claim 1 is characterized in that: this igniting chamber is a cylindricality cavity or horn-like cavity; Perhaps this igniting chamber comprises the cylindricality cavity and the horn-like cavity of connection in regular turn, and the slot of this horn-like cavity is connected with this accelerated passage.
3. spark plug according to claim 2 is characterized in that: this accelerated passage is the cylindricality cavity.
4. according to claim 2 or 3 described spark plugs, it is characterized in that: this inlet chamber is cylindricality cavity or horn-like cavity; Perhaps this inlet chamber comprises the horn-like cavity and the cylindricality cavity of connection in regular turn, and the slot of this horn-like cavity is connected with this accelerated passage.
5. spark plug according to claim 4 is characterized in that: have spiral helicine groove or protuberance on the inwall of this igniting chamber, accelerated passage and inlet chamber.
6. spark plug according to claim 1 is characterized in that: this grounding electrode is circular along section perpendicular to axial direction, and the end of this central electrode is positioned on the center of circle of the edge of this a grounding electrode section perpendicular to axial direction.
7. spark plug according to claim 1; It is characterized in that: this grounding electrode is a stage body; On the inwall of the housing between this igniting chamber and the accelerated passage; The centre of this grounding electrode have one run through bottom surface on it through hole, this through hole is communicated with this accelerated passage, this central electrode is positioned at the top of this grounding electrode in the face of the upper bottom surface of this central electrode.
8. spark plug according to claim 1 is characterized in that: this grounding electrode is to have the spicule of radial width or for plates, and it is arranged on the inwall that housing is positioned at its igniting chamber, and along the radial finger in igniting chamber to central electrode.
9. spark plug according to claim 8 is characterized in that: comprise at least two grounding electrodes, it is equal angular to be arranged on the igniting cavity wall of housing.
10. spark plug according to claim 1 is characterized in that: the end of this central electrode is " one " font or " ten " font or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101201653A CN102623896A (en) | 2012-04-20 | 2012-04-20 | Spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101201653A CN102623896A (en) | 2012-04-20 | 2012-04-20 | Spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102623896A true CN102623896A (en) | 2012-08-01 |
Family
ID=46563644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101201653A Pending CN102623896A (en) | 2012-04-20 | 2012-04-20 | Spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102623896A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015024516A1 (en) * | 2013-08-21 | 2015-02-26 | Zhang Die Er | Spark plug and ignition system of internal combustion engine using same |
| CN104421091A (en) * | 2013-08-21 | 2015-03-18 | 张蝶儿 | Ignition system of internal combustion engine and method for installing spark plug in combustion chamber |
| CN105633800A (en) * | 2014-10-31 | 2016-06-01 | 张蝶儿 | Spark plug |
Citations (8)
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|---|---|---|---|---|
| US2702537A (en) * | 1951-08-14 | 1955-02-22 | Boeing Co | Cool core hot cavity spark plug |
| US4028576A (en) * | 1975-07-21 | 1977-06-07 | David Wofsey | Sonic spark plug |
| CN2064951U (en) * | 1988-12-28 | 1990-10-31 | 张积俭 | Epithermal sparking plug |
| CN1134764A (en) * | 1994-07-01 | 1996-10-30 | 赛克斯和赛文斯有限公司 | An improved spark plug system |
| CN101006255A (en) * | 2004-06-24 | 2007-07-25 | 伍德沃德控制器公司 | Pre-chamber spark plug |
| CN201937165U (en) * | 2010-12-28 | 2011-08-17 | 李忠尧 | Bow-shaped multi-point dazzle fire side electrode spark plug |
| WO2012009800A1 (en) * | 2010-07-22 | 2012-01-26 | Oleksandr Burmenko | Spark plug |
| CN102361221A (en) * | 2011-09-23 | 2012-02-22 | 柳孟柱 | Spark plug |
-
2012
- 2012-04-20 CN CN2012101201653A patent/CN102623896A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2702537A (en) * | 1951-08-14 | 1955-02-22 | Boeing Co | Cool core hot cavity spark plug |
| US4028576A (en) * | 1975-07-21 | 1977-06-07 | David Wofsey | Sonic spark plug |
| CN2064951U (en) * | 1988-12-28 | 1990-10-31 | 张积俭 | Epithermal sparking plug |
| CN1134764A (en) * | 1994-07-01 | 1996-10-30 | 赛克斯和赛文斯有限公司 | An improved spark plug system |
| CN101006255A (en) * | 2004-06-24 | 2007-07-25 | 伍德沃德控制器公司 | Pre-chamber spark plug |
| WO2012009800A1 (en) * | 2010-07-22 | 2012-01-26 | Oleksandr Burmenko | Spark plug |
| CN201937165U (en) * | 2010-12-28 | 2011-08-17 | 李忠尧 | Bow-shaped multi-point dazzle fire side electrode spark plug |
| CN102361221A (en) * | 2011-09-23 | 2012-02-22 | 柳孟柱 | Spark plug |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015024516A1 (en) * | 2013-08-21 | 2015-02-26 | Zhang Die Er | Spark plug and ignition system of internal combustion engine using same |
| CN104421091A (en) * | 2013-08-21 | 2015-03-18 | 张蝶儿 | Ignition system of internal combustion engine and method for installing spark plug in combustion chamber |
| CN105633800A (en) * | 2014-10-31 | 2016-06-01 | 张蝶儿 | Spark plug |
| CN105633800B (en) * | 2014-10-31 | 2017-03-29 | 张蝶儿 | A kind of spark plug |
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Application publication date: 20120801 |