CN106936071B - A kind of spark plug and the application method for extending pancake engine spark plug life - Google Patents
A kind of spark plug and the application method for extending pancake engine spark plug life Download PDFInfo
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- CN106936071B CN106936071B CN201710152986.8A CN201710152986A CN106936071B CN 106936071 B CN106936071 B CN 106936071B CN 201710152986 A CN201710152986 A CN 201710152986A CN 106936071 B CN106936071 B CN 106936071B
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- electrode
- spark plug
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- insulator
- contre
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- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P15/00—Electric spark ignition having characteristics not provided for in, or of interest apart from, groups F02P1/00 - F02P13/00 and combined with layout of ignition circuits
- F02P15/02—Arrangements having two or more sparking plugs
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spark Plugs (AREA)
Abstract
The invention discloses a kind of spark plugs, including contre electrode, insulator, the contre electrode is arranged on the inside of insulator and extends along its axis direction outside insulator, metal shell is coated with outside the lower end of insulator, the lower end of metal shell is helicitic texture, grounding electrode is L-shaped, there is gap between grounding electrode and contre electrode, the discharge electrode jag of contre electrode is into multiple ends, multiple ends are evenly distributed on the discharge electrode of contre electrode, also disclose a kind of application method for extending the service life, this method is that the spark plug in pancake engine top and the spark plug of lower part are carried out location swap after certain time is used.The present invention can reduce the flame arrest effect of grounding electrode, improve the arcing stability of spark plug.
Description
Technical field
The present invention relates to engine arts, and in particular to a kind of spark plug and extension pancake engine spark plug life
Application method.
Background technology
Spark plug is commonly called as nozzles, its effect is the high voltage pulse discharge of electricity that high-voltage conducting wires are sent, disruptive spark plug two
Air between electrode generates the mixed gas that electric spark is ignited with this in cylinder.
Existing plug ignition speed is relatively unhappy, and has many carbon distributions on the electrode, makes spark plug sparking
It can be unstable.And the oxidation resistance of common spark plug is limited, and electrode is seriously ablated, and service life is not grown.
The working environment of spark plug is extremely severe, and temperature and pressure is not only high but also frequently changes.
In order to increase the Ulva Pertusa ability of gasoline, modern piston aviation engine, which requires, uses high-octane boat
Empty gasoline, domestic aviation gasoline mostly by the high-octane requirement for adding leaded chemical anti-knock agent to reach uprising,
At present domestic No. 100 or No. 95 aviation gasoline lead tolerance it is all higher.
The working environment of this high temperature and pressure and relatively inferior fuel oil easily cause spark plug and bridge short-circuit, electrode erosion,
Carbon distribution, product lead hang the pollutions such as oil, these will all seriously affect the ignition performance of spark plug.Going for spark plug must be improved therefore
The application method of the ability of carbon remover and the spark plug of improvement pancake engine.
Existing application method need to once check spark plug when 50 is small checking step is usually clear regarding feelings
Clean, arcing test, then reinstalls at random or original position reinstalls.
The working environment that this Inspection and maintenance method has ignored the spark plug in cylinder lower part is more severe compared to top,
Various losses are more serious, and service life is relatively much shorter, and product lead, carbon distribution, extension oil weaken the electric spark for generating spark plug even
Not arcing, since electric spark is weak or not arcing（All or part of spark plug）, each cylinder-firing pressure will be made uneven or not
Outburst is shaken so as to cause engine.
The content of the invention
Present invention aims at providing a kind of spark plug, the faster increasing ignition speed of the spark plug, and can be better
Ensure arcing stability.The present invention also provides a kind of application methods that can extend pancake engine spark plug life.
The present invention is achieved through the following technical solutions：
A kind of spark plug, including contre electrode, insulator, the contre electrode be arranged on the inside of insulator and along its
Axis direction extends outside insulator, metal shell is coated with outside the lower end of insulator, the lower end of metal shell is screw thread knot
Structure, and the lower end of metal shell is connected with grounding electrode, has gap between grounding electrode and contre electrode, contre electrode is put
Electrode jag is evenly distributed on into 2 ends, 2 ends on the discharge electrode of contre electrode, and the end face of each end is inclined-plane, is connect
Ground electrode is L-shaped, and the number of grounding electrode and the number of end are equal, and the position phase of each grounding electrode and each end
Right, the end face of each grounding electrode is also inclined-plane and parallel with the end face of each end and with gap.
Igniting face between the contre electrode and grounding electrode of existing spark plug, grounding electrode quantity can be it is multiple,
But contre electrode is only only there are one discharge end, igniting face always only there are one, and face of lighting a fire also is only confined at one,
The face of catching fire can not be quickly spread to, the longer time is needed to reach ignition temperature in complete ignition procedures.
The present invention is that contre electrode is arranged to have 2 ends, and the end face of 2 ends may make up igniting face, and hold
Head corresponds to the grounding electrode of identical quantity, and the end face of the end face of end and grounding electrode is all provided with being set to certain interval
Opposite inclined-plane, two ends are set again for jag, have a certain distance, and face of so lighting a fire forms 2, and can take into account
Entire spatial dimension between contre electrode and grounding electrode, while there are a certain distance, ignition procedures between 2 igniting faces
In have the region of thermal response intersection, temperature rises faster in this region, reaches mixed gas ignition point faster, this to set
It puts and has broken the limitation that igniting face is confined to somewhere by the prior art, arcing can more hold between contre electrode and grounding electrode
Easily, burn faster.The distance between other two igniting face be also have it is fastidious, meet it is too near if easily burn two centers
Electrode and grounding electrode, the effect too far and that collaboration cannot be played of meeting, defined in the present invention two gaps at a distance of just so that
Two igniting faces do not have the distance of Synergy for D1, and two gaps are at a distance of just so that contre electrode and grounding electrode were burnt
Distance is D2, of the invention two gaps（Gap i.e. between contre electrode and grounding electrode）Centre distance is arranged to D, then D
Meet D1 ＞ D ＞ D2, and the diameter+0.6-1.5mm of D=contre electrode.There is no relevant discussions for existing technology.
The end face of each end is V-type face.
The end face of each grounding electrode is the grooved position in V-type face and the V-type face of the grooved position in V-type face and each end
It is corresponding.The setting in V-type face can further control arcing stability.
2 ends are vertical with contre electrode.2 ends can also be vertical with contre electrode, and end can be L at this time
Shape.
The first passage of insulator, the gusset of the centrally located electrode of first passage and center are provided through in insulator
Electrode is isolated non-intersect by the insulating materials of insulator, conduction pipe is also associated with above first passage, the conducting is effective
It is connected in the inlet manifold with engine, conduction pipe is also associated with gas pressurized device, and first passage lower inside is also set up
Additional-air inlet valve.The additional-air inlet valve is connected with the air inlet door of engine, and additional-air inlet valve follows inlet valve
The air inlet valve of structure does switch movement, and for additional-air inlet valve is caused to be connected simply with air inlet door, first passage is set
Linear pattern rather than broken line type are set to, and the valve part of additional-air inlet valve and spring section are set as：Valve part
It is arranged in first passage and stretches out first passage mouth, valve part is isolation material, and spring section is arranged on outside first passage
Portion, and spring section is also isolation material.Therefore, additional-air inlet valve is different with common air inlet valve, additional-air inlet valve
The more common air inlet valve of valve connecting rod length and than the long path length of first passage, the horn mouth of additional-air inlet valve is more general
Logical air inlet valve small and match first passage can be exported with first passage outlet diameter size and block.Common spark
Plug is exactly that gap between contre electrode and grounding electrode is changed using the reason for after a period of time, arcing is unstable,
The combustion gas flow being present between gap is few, combustion-supporting deficiency, thus arcing is unstable, easily extinguishes.The present invention passes through in spark
A first passage communicated with inlet manifold is integrated in the insulator of plug, it becomes possible to when engine charge, obtain foot
Enough burning gases, it is thus possible to which fast spark improves the ignition performance of spark plug.Gas pressurized device is used to that first will to be entered
The gas boosting of passage improves the flow velocity of gas, on the one hand can promote the mobility of air mixture, is provided more for gap
Air mixture prevents that gas existing for gap is in prolonged stationary state without abundance between contre electrode and grounding electrode
Air mixture fill into so that arcing is difficult, and the live gas on the other hand flowed into can reduce spark plug under high temperature
Temperature improves the service life of spark plug, and the flow velocity that in addition gas increases sharply can also take away the product generated on sparking-plug electrode
Carbon is also contributed to improve the service life of spark plug.Set additional-air inlet valve that can realize when air-breathing in cylinder, gas
Inlet manifold is entered back by air cleaner, then to first passage, and when the gas in cylinder needs detonation, explosion production
Raw mixed gas will not be entered in first passage, and the gas pressure that cylinder obtains will not be scattered and disappeared, and influence starting property
Energy.
Alloy sheet interlayer is coated on each at least one end face of end and the end face of at least one grounding electrode.
Contain iridium, platinum, nickel and copper in the alloy sheet interlayer.
Platinum containing key component in the alloy sheet interlayer, the iridium of 5-15wt%, the copper of 6-20wt%, the nickel of 5-10wt%.
In the present invention due to applied on the end face of electrode the key component of alloy sheet interlayer is platinum, in addition the iridium of determinant, copper, nickel,
It therefore being capable of high temperature resistant, anti-oxidant, resistance to ablation.In order to allow what air can fill between contre electrode and grounding electrode to fill
Foot, by contre electrode and the alloy sheet interlayer structural porous puffing of grounding electrode, specific method is by metal powder and porous load
Body combines at high temperature, and is extended welding in flakes on the electrode.In addition metal ingredient in the present invention in alloy sheet interlayer
Ratio can take into account financial cost and heat dissipation performance.Porous carrier be the flake porous carrier of honeycomb, the alloy of porosity and looseness
Lamella can be set to the lamellar structure with multiple dense micropores, and dense micropore is arranged on the flake porous alloy sheet interlayer of honeycomb
Row waviness, a diameter of 50-100 microns of micropore.High temperature is 900-1500 DEG C.Honeycomb is flake porous and Process is set
Put the air-flow crossfire for enabling to be filled between contre electrode and grounding electrode so that the time of contact between air and electrode
It is elongated.
A kind of application method for extending pancake engine spark plug life, by foregoing spark plug, it is horizontal right to be placed on
Four cylinders for putting engine correspond to spark plug placement location, using 50 it is small when after, by the top spark plug of the first cylinder and under
Portion's spark plug removes, and is cleaned after making marks, adjusts polishing grinding after gap, test, transposition；Remaining second and third, four cylinders
All the spark plug in top and lower part spark-plug location are exchanged using the above method, the cleaning treatment is using spark
Plug concussion cleaner processing removes long-pending oil, carbon distribution, product lead, and adjustment gap is the adjustment positive and negative clearance between poles of spark plug.Using priciple
It is exactly that top spark plug and lower part spark-plug location are interchangeable, exchange can be same cylinder exchange, opposed exchange, homonymy exchange.
Compared with prior art, the present invention it has the following advantages and advantages：
1st, the present invention can improve antioxygenic property, improve the corrosion-resistant property of electrode at high temperature, extending plug
Service life；
2nd, the present invention can also provide enough air mixtures for the gap between contre electrode and grounding electrode so that jump
Fire is more prone to and stablizes, and can also reduce the operating temperature of spark plug, takes away the carbon distribution on sparking-plug electrode；
3rd, the present invention can form uniform spark, grounding electrode and contre electrode between contre electrode and grounding electrode
Each end be oppositely arranged the flame arrest effect that can reduce grounding electrode, improve the arcing stability of spark plug；
4th, first passage is arranged in insulator by the present invention, can simplify the structure of spark plug, is reduced spark plug and is being sent out
Footprint inside motivation reduces the manufacture cost of engine.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is schematic structural view of the invention.
Mark and corresponding parts title in attached drawing：
1- contre electrodes, 2- metal shells, 3- grounding electrodes, 4- first passages, 51- valves, 52- valve connecting rods, 53-
Spring section.
Specific embodiment
Understand to make the object, technical solutions and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in Figure 1, a kind of spark plug, including contre electrode 1, insulator, the contre electrode 1 is arranged on insulator
It is internal and extend along its axis direction outside insulator, metal shell 2, metal shell 2 are coated with outside the lower end of insulator
Lower end for helicitic texture, and the lower end of metal shell 2 is connected with grounding electrode 3, and grounding electrode 3 is L-shaped, 3 He of grounding electrode
There is gap, for the discharge electrode jag of contre electrode 1 into 2 ends, 2 ends are evenly distributed on central electricity between contre electrode 1
On the discharge electrode of pole 1, the end face of each end is inclined-plane, and the number of grounding electrode 3 and the number of end are equal, and each ground connection
Electrode 3 is opposite with the position of each end, the end face of each grounding electrode 3 also for inclined-plane and it is parallel with the end face of each end and
With gap.
The number of corresponding grounding electrode 3 and the number of end are opposite.The distance between each gap is equal.
Embodiment 2
The end face of each end is V-type face.
The end face of each grounding electrode 3 is V-type face and the groove position in the V-type face of the grooved position in V-type face and each end
It puts corresponding.
Embodiment 3
As shown in Figure 1, more 2 ends are vertical with contre electrode 1.
Be provided through the first passage 4 of insulator in insulator, the gusset of 4 centrally located electrode 1 of first passage and in
Electrode 1 is entreated to be isolated by the insulating materials of insulator non-intersect, 4 top of first passage is also associated with conduction pipe, the conducting
Pipe with the inlet manifold of engine for being connected, and conduction pipe is also associated with gas pressurized device, and 4 lower inside of first passage is also
Additional-air inlet valve is set.
The additional-air inlet valve is connected with the air inlet door of engine, and additional-air inlet valve follows air inlet door
Air inlet valve does switch movement, and for additional-air inlet valve is caused to be connected simply with air inlet door, first passage 4 is arranged to directly
Line style rather than broken line type, and the valve part of additional-air inlet valve and spring section 53 are set as：Valve part is set
In first passage and first passage mouth is stretched out, valve part is isolation material, and spring section 53 is arranged on outside first passage,
And spring section is also isolation material.Therefore, additional-air inlet valve is different with common air inlet valve, the gas of additional-air inlet valve
The length of the more common air inlet valve of door connecting rod 52 and than the long path length of first passage, the loudspeaker of the valve 51 of additional-air inlet valve
Mouthful more common air inlet valve small and match with first passage outlet diameter size first passage can be exported to 4 closure.
Common spark plugs are exactly between contre electrode 1 and grounding electrode 3 using the reason for after a period of time, arcing is unstable
Gap changed, the combustion gas flow being present between gap is few, combustion-supporting deficiency, thus arcing is unstable, easily extinguish.
The present invention in the insulator of spark plug by integrating a first passage 4 communicated with inlet manifold, it becomes possible in engine
When air inlet, enough burning gases are obtained, it is thus possible to which fast spark improves the ignition performance of spark plug.
Embodiment 4
Alloy sheet interlayer is coated on each at least one end face of end and the end face of at least one grounding electrode 3.
Contain iridium, platinum, nickel and copper in the alloy sheet interlayer.
Platinum containing key component in the alloy sheet interlayer, the iridium of 5-15wt%, the copper of 6-20wt%, the nickel of 5-10wt%.
In the present invention due to applied on the end face of electrode the key component of alloy sheet interlayer is platinum, being capable of high temperature resistant, anti-oxidant, resistance to
Ablation.For the abundance that air can be filled between contre electrode 1 and grounding electrode 3, by contre electrode 1 and grounding electrode
3 alloy sheet interlayer structural porous puffing, specific method is to combine metal and porous carrier at high temperature, and is extended into
Piece welds on the electrode.In addition the ratio of the metal ingredient in the present invention in alloy sheet interlayer can take into account financial cost and dissipate
Hot property.
Porous carrier is the flake porous carrier of honeycomb, and the alloy sheet interlayer of porosity and looseness can be set to have multiple intensive micro-
The lamellar structure in hole, and dense micropore arranges waviness, a diameter of 50- of micropore on the flake porous alloy sheet interlayer of honeycomb
100 microns.High temperature is 900-1500 DEG C.Honeycomb is flake porous and the setting of Process enable to be filled in contre electrode and
Air-flow crossfire between grounding electrode so that the time of contact between air and electrode is elongated.
Embodiment 5
A kind of application method for extending pancake engine spark plug life, by foregoing spark plug, it is horizontal right to be placed on
Four cylinders for putting engine correspond to spark plug placement location, using 50 it is small when after, by the top spark plug of the first cylinder and under
Portion's spark plug removes, and is cleaned after making marks, adjusts polishing grinding after gap, test, transposition；Remaining second and third, four cylinders
All the spark plug in top and lower part spark-plug location are exchanged using the above method, the cleaning treatment is using spark
Plug concussion cleaner processing removes long-pending oil, carbon distribution, product lead, and adjustment gap is the adjustment positive and negative clearance between poles of spark plug.Using priciple
It is exactly that top spark plug and lower part spark-plug location are interchangeable, exchange can be same cylinder exchange, opposed exchange, homonymy exchange.
Above-described specific embodiment has carried out the purpose of the present invention, technical solution and advantageous effect further
It is described in detail, it should be understood that the foregoing is merely the specific embodiments of the present invention, is not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of spark plug, including contre electrode（1）, insulator, the contre electrode（1）It is arranged on the inside of insulator and edge
It its axis direction to extend outside insulator, metal shell is coated with outside the lower end of insulator（2）, metal shell（2）Under
It holds as helicitic texture, and metal shell（2）Lower end be connected with grounding electrode（3）, grounding electrode（3）And contre electrode（1）It
Between have gap, which is characterized in that contre electrode（1）Discharge electrode jag into 2 ends, 2 ends are evenly distributed on center
Electrode（1）Discharge electrode on, the end face of each end is inclined-plane, grounding electrode（3）Number and end number it is equal and every
A grounding electrode（3）It is opposite with the position of each end, each grounding electrode（3）End face also for inclined-plane and with each end
End face is parallel and with gap, and 2 ends are and contre electrode（1）Vertically, the first of insulator is provided through in insulator
Passage（4）, first passage（4）Centrally located electrode（1）Gusset and contre electrode（1）Pass through the insulating materials phase of insulator
Isolate non-intersect, first passage（4）Top is also associated with conduction pipe, and the conduction pipe is used to be connected with the inlet manifold of engine
Logical, conduction pipe is also associated with gas pressurized device, first passage（4）Lower inside also sets up additional-air inlet valve.
2. spark plug according to claim 1, which is characterized in that the end face of each end is V-type face, each grounding electrode
（3）End face it is corresponding for the grooved position in V-type face and the V-type face of the grooved position in V-type face and each end.
3. spark plug according to claim 1, which is characterized in that first passage（4）Lower end and contre electrode（1）With connect
Ground electrode（3）Gap it is opposite.
4. spark plug according to claim 1, which is characterized in that at least one end face of each end and at least one connect
Ground electrode（3）End face on be coated with alloy sheet interlayer.
5. spark plug according to claim 4, which is characterized in that contain iridium, platinum, nickel and copper in the alloy sheet interlayer.
6. spark plug according to claim 5, which is characterized in that the platinum containing key component, 5- in the alloy sheet interlayer
The iridium of 15wt%, the copper of 6-20wt%, the nickel of 5-10wt%.
7. spark plug according to claim 6, which is characterized in that alloy sheet interlayer be by the platinum of powdered key component,
The iridium of 5-15wt%, the copper of 6-20wt%, the nickel High Temperature Disperse of 5-10wt% combine the porous carrier alloy obtained on porous support
Lamella.
8. a kind of application method for extending pancake engine spark plug life, which is characterized in that claim 1-7 is any
Spark plug, four cylinders for being placed on pancake engine correspond to spark plug placement location, using 50 it is small when after, by the
The top spark plug and lower part spark plug of one cylinder remove, and are cleaned after making marks, adjust polishing grinding after gap, test, exchanged
Position；Remaining second and third, four cylinders it is all using the above method that the spark plug in top and lower part spark-plug location is mutual
It changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152986.8A CN106936071B (en) | 2017-03-15 | 2017-03-15 | A kind of spark plug and the application method for extending pancake engine spark plug life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710152986.8A CN106936071B (en) | 2017-03-15 | 2017-03-15 | A kind of spark plug and the application method for extending pancake engine spark plug life |
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| Publication Number | Publication Date |
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| CN106936071A CN106936071A (en) | 2017-07-07 |
| CN106936071B true CN106936071B (en) | 2018-05-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107482478A (en) * | 2017-08-28 | 2017-12-15 | 江门市江海区立本机动车零配件厂有限公司 | high stability spark plug |
| JP7314137B2 (en) * | 2018-12-21 | 2023-07-25 | インニオ ジェンバッハー ゲーエムベーハー アンド コー オーゲー | Spark plug and method of manufacturing spark plug |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013003561A2 (en) * | 2011-06-28 | 2013-01-03 | Federal-Mogul Ignition Company | Spark plug electrode configuration |
| DE102012202335A1 (en) * | 2012-02-16 | 2013-08-22 | Robert Bosch Gmbh | Spark plug, in particular vortex chamber spark plug |
| CN206506154U (en) * | 2017-03-15 | 2017-09-19 | 中国民用航空飞行学院 | A kind of spark plug |
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