CN206495735U - A kind of atomizer of internal combustion engine - Google Patents
A kind of atomizer of internal combustion engine Download PDFInfo
- Publication number
- CN206495735U CN206495735U CN201620728663.XU CN201620728663U CN206495735U CN 206495735 U CN206495735 U CN 206495735U CN 201620728663 U CN201620728663 U CN 201620728663U CN 206495735 U CN206495735 U CN 206495735U
- Authority
- CN
- China
- Prior art keywords
- section
- nozzle opening
- balancing gate
- gate pit
- needle
- 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
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a kind of atomizer of internal combustion engine, including valve body and needle.Valve body includes balancing gate pit, fuel feed hole and multiple nozzle openings.Fuel feed hole is connected to balancing gate pit, and the balancing gate pit is connected to nozzle opening, and needle is located in the balancing gate pit.Needle includes conical seal, and the conical seal is pressed on nozzle opening.The conical seal includes first annular seal section and the second ring packing section, and first annular seal section is located at the top of the nozzle opening of at least one, and the second ring packing section is located at the lower section of the nozzle opening of at least one.Nozzle opening is fully sealed from both sides respectively in first annular seal section and the second ring packing section, both diesel oil can be prevented to enter nozzle opening from top, and the comburant in combustion chamber can be prevented to enter the conical region of balancing gate pit again.
Description
Technical field
The utility model is related to diesel engine fuel injecting device, more particularly to internal combustion engine atomizer.
Background technology
201010165938.0 that injection valve has nozzle tube, and oil spout is at least separated from the nozzle tube its blind hole and is led to
Road.Valve seat orifice constitutes cone along to the direction of blind hole, and the first valve seat bearing-surface is determined on the inwall of limitation valve seat orifice.Spray
Mouth needle set has valve seat part and the conical seal (contact) face being connected in valve seat part（Tip portion）, the tip portion can control oil spout
Mouth is opened and closed.The point is pyramidal structure, located immediately at the top of nozzle opening group.Although the pyramidal structure can limit diesel oil entrance
Nozzle opening, but the conical region that the comburant in combustion chamber can not be prevented to enter at nozzle opening.
Utility model content
The utility model proposes a kind of atomizer of internal combustion engine, double sealing structure is set on conical seal (contact) face, can
The conical region for preventing the comburant in combustion chamber from entering at nozzle opening.
What the technical solution of the utility model was realized in：
A kind of atomizer of internal combustion engine, including valve body and needle, the valve body include balancing gate pit, fuel feed hole and multiple sprays
Oilhole, the fuel feed hole is connected to the balancing gate pit, and the balancing gate pit is connected to the nozzle opening, and the needle is located at the balancing gate pit
Interior, it is characterised in that the needle includes conical seal, the conical seal is pressed on the nozzle opening, wherein, the taper
Sealing includes first annular seal section and the second ring packing section, and the first annular seal section is located at the described of at least one
The top of nozzle opening, the second ring packing section is located at the lower section of the nozzle opening of at least one.
In the atomizer of internal combustion engine of the present utility model, the first annular seal section and the second ring packing Duan Jingyi
Arc guide surface is connected.
In the atomizer of internal combustion engine of the present utility model, the conical seal also includes the 3rd ring packing section, should
3rd ring packing section is located at the lower section of the nozzle opening of at least one.
In the atomizer of internal combustion engine of the present utility model, an arc-shaped transition is provided between the oil storage section and fuel feed hole
Face.
Implement the atomizer of this internal combustion engine of the present utility model, have the advantages that：First annular seal section and
Nozzle opening is fully sealed from both sides respectively in second ring packing section, both diesel oil can be prevented to enter nozzle opening from top, and can prevented again
Comburant in combustion chamber enters the conical region of balancing gate pit.When valve body is provided with multiple rows of nozzle opening, the 3rd ring packing section is also
Respective action can be played.It is the arcuate structure being recessed between seal section, bootable diesel oil flows out nozzle opening.
Brief description of the drawings
Fig. 1 is the schematic diagram of the atomizer of this internal combustion engine of the present utility model；
Fig. 2 is Fig. 1 partial view；
Fig. 3 is the partial view at Fig. 1 another place；
Fig. 4 is the schematic diagram of Fig. 3 another state；
Fig. 5 is Fig. 3 partial view.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe.
The atomizer of this diesel engine of the present utility model as shown in Fig. 1 to 5, including valve body 100 and needle
200.The valve body 100 includes balancing gate pit 110, fuel feed hole 120 and multiple nozzle openings 130, and the fuel feed hole 120 is connected to institute
Balancing gate pit 110 is stated, the balancing gate pit 110 is connected to the nozzle opening 130, the needle 200 is located in the balancing gate pit 110.It is described
Needle 200 includes conical seal 210, and the conical seal 210 is pressed on the nozzle opening 130.Existing conical seal
The top of main seal nozzle opening, the conical region for causing the comburant in combustion chamber to be directly entered below conical seal.
In the present embodiment, conical seal 210 includes the first annular ring packing of seal section 211 and second section 212, first ring
Shape seal section 211 is located at the top of the nozzle opening 130 of at least one, and the second ring packing section 212 is located at least one
The lower section of the individual nozzle opening 130.The first annular ring packing of seal section 211 and second section 212 is completely close from both sides respectively
Nozzle opening 130 is sealed, can both prevent diesel oil from entering nozzle opening 130 from top, and again the comburant in combustion chamber can have been prevented to enter pressure
The conical region of the lower section of room 110.The conical seal 210 also includes the 3rd ring packing section 213, the 3rd ring packing section
213 are located at the lower section of the nozzle opening 130 of at least one.When valve body 100 is provided with multiple rows of nozzle opening 130, the 3rd annular is close
Envelope section 213 can also play respective action.The ring packing of first annular seal section 211 and second section 212 is through an arcuate guide
Face 214 is connected, the bootable diesel oil outflow nozzle opening 130 of the arcuate structure between seal section.
The balancing gate pit 110 is made up of damping section 111, guide section 112 and oil storage section 113, described to damp section 111, lead
It is coaxial to section 112 and oil storage section 113.The structure that 201310285655.3 that damping position is deviateed to side is unfavorable for valve
Pin is positioned.The needle 200 also includes damper portion 220, and the damper portion 220 is located in the damping section 111.The damping section
111 diameter is more than the diameter of the damper portion 220, and the diameter of the damper portion 220 is more than the diameter of the guide section 112.
The a small amount of fuel oil of the memory storage of section 111 is damped, when needle 200 is fallen after rise to valve body 100, damper portion 220 enters damping section 111, will fire
Oil extrusion.Fuel oil slows down shock of the needle 200 to valve body 100 during being extruded, it is to avoid part injury.Damper portion 220 is entered
Enter to damp after section 111, fuel oil can limit the reversely bounce of needle 200 again, it is to avoid secondary fuel injection.The height of the damper portion 220 is big
In the damping section 111.Even if the structure is conducive to damper portion 220 to completely attach to the bottom for damping section 111, fuel oil will not still cover
The top of lid damper portion 220, it is to avoid needle 200, which is moved, additionally to be limited.In addition, oil storage section 113 and fuel feed hole 120 it
Between be provided with an arc transiting surface 121, the arc transiting surface 121 can avoid cavitation, it is to avoid part is corroded.
As non-limiting preferred structure, valve body 100 can also have outside nozzle opening 130 intersects spray orifice 140, institute
State and intersect the lower section that spray orifice 140 is located at the nozzle opening 130.The intersection spray orifice 140 enters including the first fuel feed hole 141, second
Oilhole 142 and oil outlet 143, the fuel feed hole 142 of the first fuel feed hole 141 and second be respectively positioned on the conical seal 210 with
Between oil outlet 143.The fuel feed hole 142 of first fuel feed hole 141 and second is connected to the oil outlet 143, the oil outlet
143 sectional area is less than the sectional area sum of the fuel feed hole 142 of the first fuel feed hole 141 and second.Separate first enters
The fuel feed hole 142 of oilhole 141 and second can oil-feed, the diesel oil import oil outlet 143 after spray.The area of oil outlet 143 is smaller, bavin
Oil forms turbulent flow after oil outlet 143 is left, and the diesel oil after ejection is more easy to and air contact, improves efficiency of combustion.It is described fuel-displaced
The sectional area in hole 143 is more than the sectional area of first fuel feed hole 141.The sectional area of oil outlet 143 should be greater than a fuel feed hole
120 sectional area, it is ensured that diesel oil has enough space outflows.The axis phase of first fuel feed hole 141 and the second fuel feed hole 142
Friendship forms acute angle.Mutually two fuel feed holes 120 at an acute angle advantageously reduce resistance when diesel oil is imported.First fuel feed hole
Arc enlarging 144 is provided between 141 and the oil outlet 143, the maximum secting area of the arc enlarging 144 is more than the oil outlet
143 sectional area.The area of arc enlarging 144 is larger, is conducive to the formation of turbulent flow.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (3)
1. a kind of atomizer of internal combustion engine, including valve body and needle, the valve body include balancing gate pit, fuel feed hole and multiple oil spouts
Hole, the fuel feed hole is connected to the balancing gate pit, and the balancing gate pit is connected to the nozzle opening, and the needle is located at the balancing gate pit
Interior, it is characterised in that the needle includes conical seal, the conical seal is pressed on the nozzle opening, wherein, the taper
Sealing includes first annular seal section and the second ring packing section, and the first annular seal section is located at the described of at least one
The top of nozzle opening, the second ring packing section is located at the lower section of the nozzle opening of at least one.
2. the atomizer of internal combustion engine according to claim 1, it is characterised in that the first annular seal section and the second ring
Shape seal section is connected through an arc guide surface.
3. the atomizer of internal combustion engine according to claim 1, it is characterised in that the conical seal also includes the 3rd ring
Shape seal section, the 3rd ring packing section is located at the lower section of the nozzle opening of at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728663.XU CN206495735U (en) | 2016-07-12 | 2016-07-12 | A kind of atomizer of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728663.XU CN206495735U (en) | 2016-07-12 | 2016-07-12 | A kind of atomizer of internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495735U true CN206495735U (en) | 2017-09-15 |
Family
ID=59799745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620728663.XU Expired - Fee Related CN206495735U (en) | 2016-07-12 | 2016-07-12 | A kind of atomizer of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014738A (en) * | 2016-07-12 | 2016-10-12 | 江西汇尔油泵油嘴有限公司 | Obstructing type oil injection method and oil injection nozzle |
-
2016
- 2016-07-12 CN CN201620728663.XU patent/CN206495735U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014738A (en) * | 2016-07-12 | 2016-10-12 | 江西汇尔油泵油嘴有限公司 | Obstructing type oil injection method and oil injection nozzle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170915 Termination date: 20190712 |