CN209145720U - A kind of ignition system and spark plug of internal combustion engine - Google Patents
A kind of ignition system and spark plug of internal combustion engine Download PDFInfo
- Publication number
- CN209145720U CN209145720U CN201821919494.3U CN201821919494U CN209145720U CN 209145720 U CN209145720 U CN 209145720U CN 201821919494 U CN201821919494 U CN 201821919494U CN 209145720 U CN209145720 U CN 209145720U
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- CN
- China
- Prior art keywords
- spark plug
- guide channel
- air guide
- groove
- cylinder
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 34
- 238000010304 firing Methods 0.000 claims abstract description 49
- 238000009434 installation Methods 0.000 claims abstract description 37
- 239000012212 insulator Substances 0.000 claims abstract description 27
- -1 central electrode Substances 0.000 claims abstract description 3
- 239000000446 fuel Substances 0.000 abstract description 15
- 239000003921 oil Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Spark Plugs (AREA)
Abstract
The utility model provides the ignition system and spark plug of a kind of internal combustion engine, and the ignition system of the internal combustion engine includes cylinder, oil-gas pipeline and spark plug, and the cylinder is equipped with a spark plug installation passage, and the spark plug is plugged in the spark plug installation passage；The spark plug includes insulator, central electrode, shell and grounding electrode, the insulator has the axis hole extended in the axial direction, the central electrode is inserted through the axis hole of the insulator and forms the firing end portion with the gap of spark discharge between exposed end, and the end of grounding electrode；It encloses in the firing end portion equipped with an air guide channel, the air guide channel is equipped at least one air inlet connected with oil-gas pipeline, and the gas outlet of the air guide channel is close to the firing end portion.The utility model makes fuel directly reach firing end portion, dramatically speeds up speed of ignition by the air guide channel of setting connection plug ignition end and oil-gas pipeline.
Description
Technical field
The utility model relates to internal-combustion engine ignition technical field more particularly to the ignition systems and spark of a kind of internal combustion engine
Plug.
Background technique
Internal combustion engine is a kind of by making fuel in machine internal-combustion and the thermal energy released is converted directly into power
Thermal Motor is lighted a fire by the spark plug being mounted on cylinder.The ignition system of internal combustion engine generally comprises cylinder, fire
Hua Sai and fuel injector.Cylinder is provided with an inner cavity as combustion chamber, and the spark plug installation of shape of threads is provided on cylinder wall
Channel and fuel injector installation passage, spark plug spiral are mounted on spark plug and install in logical, and the nozzle of fuel injector is set
It sets in material ejector installation passage and can be by dye injection to combustion chamber, and the nozzle of fuel injector is generally proximate to spark
The end of plug.Common spark plug includes a central electrode, insulator, shell and grounding electrode.The insulator has along axis
The axis hole that direction extends, the central electrode are inserted through the axis hole of the insulator.The periphery of the insulator, shell is arranged in the shell
The surface of body has screw thread.The grounding electrode is connect with the end of the shell, and it is opposite with central electrode to be bent extension, with center
The gap of spark discharge is formed between electrode.The central electrode and grounding electrode are respectively provided in the combustion chamber, are formed therebetween
Firing end portion.When operation, the firing end portion side of nozzle against the spark plug of fuel injector is sprayed, the firing end portion
Electric arc is generated by the effect of pulse power, and then generates the mixed gas of spark ignition surrounding them.
Since grounding electrode and central electrode are directly in combustion chamber, light a fire in the space of opposing open, point
Fuel and air (oil gas) needs are slowly diffused into firing end portion from combustion chamber when fiery, and speed of ignition is slower, cannot be started
Machine provides sufficient power.
Utility model content
Based on this, the utility model provides the ignition system and spark plug of a kind of internal combustion engine, and fuel and air can be made straight
The firing end portion for entering spark plug is connect, speed of ignition is accelerated.
A kind of ignition system of internal combustion engine described in the utility model, including cylinder, oil-gas pipeline and spark plug, the cylinder
Equipped with a spark plug installation passage, the spark plug is plugged in the spark plug installation passage；The spark plug includes insulation
Body, central electrode, shell and grounding electrode, the insulator have the axis hole extended in the axial direction, and the central electrode is inserted
Enter the axis hole through the insulator and forms the gap with spark discharge between exposed end, and the end of grounding electrode
Firing end portion；It encloses in the firing end portion equipped with an air guide channel, the air guide channel is equipped at least one and connects with oil-gas pipeline
Air inlet, and the gas outlet of the air guide channel is close to the firing end portion.
Compared with the existing technology, the utility model is logical by the air guide of setting connection plug ignition end and oil-gas pipeline
Road makes fuel directly reach firing end portion, dramatically speeds up speed of ignition.
Further, the outer wall of the spark-plug body and the inner wall of the cylinder spark plug installation passage form the air guide
Channel；The air inlet of the air guide channel is located on cylinder wall and is connected to oil-gas pipeline, and the gas outlet of the air guide channel is passed through
Wear the side wall of the spark-plug body and close to the firing end portion.
Further, the outer surface of the housing sidewall offers the first groove, first groove and the cylinder spark
The inner wall of plug installation passage forms the air guide channel；Or, to offer second recessed for the inner wall of the cylinder spark plug installation passage
Slot, the outer surface of the housing sidewall and second groove form the air guide channel；Or, the outer surface of the housing sidewall
The first groove is offered, the inner wall of the cylinder spark plug installation passage offers the second groove, first groove and second
Groove forms the air guide channel.
Further, the end of the central electrode protrudes from the end of the shell, the end of the grounding electrode and shell
Portion's connection, and it is bent that extension is opposite with central electrode, the firing end portion in the gap of formation spark discharge between central electrode；Institute
Stating spark plug further includes diversion division, and the diversion division is set in open end of the shell towards internal combustion engine cylinders, and center offers
Along axial first through hole；It is logical that the side wall of the diversion division and the inner wall of the cylinder spark plug installation passage form the air guide
Road；The air inlet of the air guide channel is located on cylinder wall and is connected to oil-gas pipeline, and the gas outlet of the air guide channel is run through
The side wall of the diversion division and the close firing end portion.
Further, the diversion division includes around first through hole and several second through-holes for opening up along axial direction；The air guide
The gas outlet in channel is isolated with second through-hole not to be connected to.
Further, the outer surface of the diversion division offers third groove, the third groove and the cylinder spark plug
The inner wall of installation passage forms the air guide channel；Or, the inner wall of the cylinder spark plug installation passage offers the second groove,
The outer surface of the diversion division and the third groove form the air guide channel；Or, the outer surface of the diversion division offers
Third groove, the inner wall of the cylinder spark plug installation passage offer third groove, first groove and third groove type
At the air guide channel.
Further, the air guide channel is around the shell or diversion division.
Spark plug provided by the utility model includes insulator, central electrode, shell and grounding electrode, the insulator tool
There is the axis hole extended in the axial direction, the central electrode is inserted through the axis hole and exposed end of the insulator, with ground connection
The firing end portion with the gap of spark discharge is formed between the end of electrode；The outer surface of the housing sidewall offers first
Groove, first groove are equipped with the venthole through the shell, and the through-hole is close to the firing end portion.
Further, the spark plug further includes diversion division, and the diversion division is set in the open end of shell, and center opens up
Have along axial first through hole；The outer surface of the diversion division offers third groove, and the third groove, which is equipped with, runs through institute
State the venthole of diversion division side wall.
Further, the diversion division further includes around first through hole and several second through-holes for opening up along axial direction；It is described go out
Stomata is isolated with second through-hole not to be connected to.
Detailed description of the invention
Fig. 1 is the ignition system structural schematic diagram of embodiment 1；
Fig. 2 is the structural schematic diagram of the spark plug of embodiment 2.
Specific embodiment
The utility model arrives fuel directly by the air guide channel of setting connection plug ignition end and oil-gas pipeline
Up to firing end portion, speed of ignition is dramatically speeded up.The technical solution of the utility model is described in detail below by way of specific embodiment.
Embodiment 1
Referring to FIG. 1, the ignition system of internal combustion engine described in the utility model includes cylinder B, oil-gas pipeline and spark plug.Institute
Cylinder is stated equipped with a spark plug installation passage.The spark plug is plugged in the spark plug installation passage；The spark plug is set
There is firing end portion；It encloses in the firing end portion equipped with an air guide channel, the air guide channel is equipped at least one and connects with oil-gas pipeline
Logical air inlet, and the gas outlet of the air guide channel is close to the firing end portion.
Specifically, the spark plug includes including a central electrode 11a, insulator 12a, shell 13a and grounding electrode
14a.The insulator 12a is ceramics insulator, has the axis hole extended in the axial direction.The central electrode 11a insertion
It is formed through the axis hole and exposed end 111a of insulator 12a, and between the end of grounding electrode 14a with spark discharge
Gap firing end portion A.The shell 13a is hollow structure, is set in the surface of the insulator 12a.The shell 13a
The outer surface of side wall offers the first groove around it, and first groove is offered through the side of the spark-plug body
The gas outlet of wall and the close firing end portion A.The cylinder B is equipped with a spark plug installation passage, the cylinder spark plug peace
The inner wall in dress channel offers the second groove, and second groove is equipped at least one air inlet connected with oil-gas pipeline.It is described
First groove and the second groove form the air guide channel.More specifically, the outer surface the shell 13a is provided with screw thread, the spiral shell
Line region front end is not have threaded non-threaded regions.It is described when the firing end portion A of the spark plug is located in the shell
First groove is located at the threaded portion of the shell close to the position of firing end portion A；When firing end portion A of the spark plug
When at the shell port, first groove can also be provided with non-threaded regions close to the position of firing end portion A.
It should be noted that the first groove described above can the inner wall individually with the cylinder spark plug installation passage formed
The air guide channel, above-mentioned second groove individually can also form the air guide channel with the outer surface of housing sidewall.In addition, working as institute
When stating the second groove equipped with an air inlet connected with oil-gas pipeline, the oil-gas pipeline can be passed through the mixing of fuel oil and air
Object；When second groove is equipped with the air inlet that more than one is connected with oil-gas pipeline, can be each led into from each air inlet
Fuel oil or air.
In the present embodiment, mixed oil and gas is directed to by the firing end portion close to spark plug by air guide channel, improves igniting
Efficiency, and thin oil gas igniting may be implemented；Further, pass through the inner wall of spark-plug body and cylinder spark plug installation passage
Between formed air guide channel air inlet be it is fixed, not will receive spark plug and set direction shadow when being fixed on installation passage because of rotation
It rings, no matter which orientation spark plug rotates to, can directly align the air inlet of oil-gas pipeline and air guide channel, very square
Just.In the induction stroke of internal combustion engine, fuel and air enter air guide channel from oil-gas pipeline, and then reach firing end portion A.It should
Firing end portion A generates electric arc by the effect of pulse power, and then generates spark ignition oil gas.
Compared with the existing technology, the ignition system of the utility model can after spark-plug thread is installed into spark plug mounting hole
An air guide channel being relatively isolated from combustion chamber is formed with the spark plug mounting hole wall of cylinder, and fuel and air are from the air guide channel
It is passed directly into inside spark plug and reaches firing end portion, do not need to be made by diffusing to firing end portion gradually in the combustion chamber of cylinder again
Spark plug can put fuel vapor in sparking moment, accelerate speed of ignition.
Embodiment 2
Referring to FIG. 2, the ignition system of internal combustion engine described in the utility model includes cylinder B, oil-gas pipeline and spark plug.Institute
Cylinder is stated equipped with a spark plug installation passage.The spark plug is plugged in the spark plug installation passage；The spark plug is set
There is firing end portion；It encloses in the firing end portion equipped with an air guide channel, the air guide channel is equipped at least one and connects with oil-gas pipeline
Logical air inlet, and the gas outlet of the air guide channel is close to the firing end portion.
Specifically, the cylinder B is equipped with a spark plug installation passage, and the inner wall of the cylinder spark plug installation passage opens up
There is the second groove, second groove is equipped at least one air inlet connected with oil-gas pipeline.The spark plug includes including one
Central electrode 11b, insulator 12b, shell 13b, grounding electrode (not shown) and diversion division.The insulator 12b is that ceramics are exhausted
Edge body has the axis hole extended in the axial direction.The central electrode 11b is inserted through the axis hole and dew of insulator 12b
End 111b out, and the firing end portion with the gap of spark discharge is formed between the end of grounding electrode.The shell 13b
For hollow structure, it is set in the surface of the insulator 12b, and the firing end portion is made to expose shell 13b.
The diversion division is a metal external member 15b, and being set in the front end shell 13b, (i.e. shell is towards combustion chambers of internal combustion engines
Open end), center offers along axial direction, leads to the first through hole of firing end portion A as main burning chamber, and surrounds the main chamber
Several second through-holes are offered as gas vent, second via bottoms (close to one end of shell 13b) and described first
Through-hole connection.And to offer third around it recessed on the surface of the bottom metal external member 15b (close to one end of shell 13b)
Slot, the gas outlet of the third groove through the diversion division side wall close to the firing end portion, and with the first through hole
It is connected to and is isolated with second through-hole and be not connected to.The third groove and the second groove form the air guide channel.
In the induction stroke of internal combustion engine, fuel oil and air enter diversion division from oil-gas pipeline and lead to the installation of cylinder spark plug
Air guide channel between the inner wall in road, and then reach firing end portion A.Firing end portion A generates electricity by the effect of pulse power
Arc, and then spark ignition oil gas is generated, oil gas fiercely burns to be gone out from main chamber, after unburned oil gas and burning
Spark plug is discharged through the second through-hole in gas.
Compared with the existing technology, the utility model is arranged a diversion division, diversion division and cylinder in the housing forward end of spark plug
The inner wall of spark plug installation passage can form an air guide channel being relatively isolated from combustion chamber, and fuel and air are from the air guide channel
It is passed through inside spark plug and reaches firing end portion, accelerate speed of ignition.And compared with Example 1, the spark plug of the present embodiment is not required to
Shell is improved, only need to be arranged a metal external member processed, it is easy to operate.
The utility model is not limited to above embodiment, if the various changes or deformation to utility model do not depart from
The spirit and scope of the utility model, if these changes and deformation belong to the claims and equivalents of the utility model model
Within enclosing, then the utility model is also intended to encompass these changes and deformation.
Claims (10)
1. a kind of ignition system of internal combustion engine, it is characterised in that: including cylinder, oil-gas pipeline and spark plug, the cylinder is equipped with
One spark plug installation passage, the spark plug are plugged in the spark plug installation passage；The spark plug include insulator, in
Heart electrode, shell and grounding electrode, the insulator have the axis hole extended in the axial direction, and the central electrode is inserted through
The axis hole of the insulator simultaneously forms the firing tip with the gap of spark discharge between exposed end, and the end of grounding electrode
Portion；It encloses in the firing end portion equipped with an air guide channel, the air guide channel is equipped at least one air inlet connected with oil-gas pipeline
Mouthful, and the gas outlet of the air guide channel is close to the firing end portion.
2. the ignition system of internal combustion engine according to claim 1, it is characterised in that: the outer wall of the spark-plug body with it is described
The inner wall of the spark plug installation passage of cylinder forms the air guide channel；The air inlet of the air guide channel is located on cylinder wall simultaneously
It is connected to oil-gas pipeline, side wall and the close firing tip of the gas outlet of the air guide channel through the spark-plug body
Portion.
3. the ignition system of internal combustion engine according to claim 2, it is characterised in that: the outer surface of the housing sidewall opens up
There is the first groove, first groove and the inner wall of the cylinder spark plug installation passage form the air guide channel；Or, described
The inner wall of cylinder spark plug installation passage offers the second groove, and the outer surface of the housing sidewall is formed with second groove
The air guide channel；Or, the outer surface of the housing sidewall offers the first groove, the cylinder spark plug installation passage it is interior
Wall offers the second groove, and first groove and the second groove form the air guide channel.
4. the ignition system of internal combustion engine according to claim 1, it is characterised in that: the end of the central electrode protrudes from
The end of the end of the shell, the grounding electrode and shell connects, and it is opposite with central electrode to be bent extension, with middle electrocardio
The firing end portion in the gap of spark discharge is formed between pole；The spark plug further includes diversion division, and the diversion division is set in shell
To the open end of internal combustion engine cylinders, center is offered along axial first through hole dignity；The side wall of the diversion division with it is described
The inner wall of the spark plug installation passage of cylinder forms the air guide channel；The air inlet of the air guide channel is located on cylinder wall simultaneously
It is connected to oil-gas pipeline, side wall and the close firing end portion of the gas outlet of the air guide channel through the diversion division.
5. the ignition system of internal combustion engine according to claim 4, it is characterised in that: the diversion division includes around first through hole
And several second through-holes opened up along axial direction；The gas outlet of the air guide channel is isolated with second through-hole not to be connected to.
6. the ignition system of internal combustion engine according to claim 4, it is characterised in that: the outer surface of the diversion division offers
The inner wall of third groove, the third groove and the cylinder spark plug installation passage forms the air guide channel；Or, the gas
The inner wall of cylinder spark plug installation passage offers the second groove, and the outer surface of the diversion division and second groove form described
Air guide channel；Or, the outer surface of the diversion division offers third groove, the inner wall of the cylinder spark plug installation passage is opened up
There is the second groove, the third groove and the second groove form the air guide channel.
7. the ignition system of internal combustion engine described in any one claim in -6 according to claim 1, it is characterised in that: institute
Air guide channel is stated around the shell or diversion division.
8. a kind of spark plug, it is characterised in that: the spark plug includes insulator, central electrode, shell and grounding electrode, described
Insulator has the axis hole extended in the axial direction, and the central electrode is inserted through the axis hole and bared end of the insulator
The firing end portion with the gap of spark discharge is formed between portion, and the end of grounding electrode；The outer surface of the housing sidewall
The first groove is offered, first groove is equipped with the venthole through the shell, and the venthole is close to the igniting
End.
9. spark plug according to claim 8, it is characterised in that: the spark plug further includes diversion division, the diversion division set
It is located at the open end of shell, center is offered along axial first through hole；It is recessed that the outer surface of the diversion division offers third
Slot, the third groove are equipped with the venthole through the diversion division side wall.
10. spark plug according to claim 9, it is characterised in that: the diversion division further includes around first through hole and along axial direction
Several second through-holes opened up；The venthole is isolated with second through-hole not to be connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821919494.3U CN209145720U (en) | 2018-11-20 | 2018-11-20 | A kind of ignition system and spark plug of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821919494.3U CN209145720U (en) | 2018-11-20 | 2018-11-20 | A kind of ignition system and spark plug of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209145720U true CN209145720U (en) | 2019-07-23 |
Family
ID=67286778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821919494.3U Expired - Fee Related CN209145720U (en) | 2018-11-20 | 2018-11-20 | A kind of ignition system and spark plug of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209145720U (en) |
-
2018
- 2018-11-20 CN CN201821919494.3U patent/CN209145720U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |