CN212898763U - Spray orifice plate for fuel spray nozzle - Google Patents
Spray orifice plate for fuel spray nozzle Download PDFInfo
- Publication number
- CN212898763U CN212898763U CN202021772774.3U CN202021772774U CN212898763U CN 212898763 U CN212898763 U CN 212898763U CN 202021772774 U CN202021772774 U CN 202021772774U CN 212898763 U CN212898763 U CN 212898763U
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- CN
- China
- Prior art keywords
- fuel
- nozzle
- vice
- auxiliary cavity
- nozzle plate
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- 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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- 239000000446 fuel Substances 0.000 title claims abstract description 33
- 239000007921 spray Substances 0.000 title claims description 19
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 25
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 238000000889 atomisation Methods 0.000 description 8
- 239000000295 fuel oil Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005507 spraying Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a nozzle plate for fuel sprayer contains its body, sets up vice chamber on the body and sets up a plurality of orifice at vice intracavity, vice intracavity is equipped with the pressure boost board, the orifice encircles the one end that sets up keeping away from the pressure boost board at vice chamber, set up the inner chamber corresponding with the oil outlet on the pressure boost board, set up two at least guiding gutters that switch on inner chamber and vice chamber mutually on the pressure boost board, make the fuel form very big pressure in vice chamber after being compressed by the pressure boost board, form the vortex through the guiding gutter in vice intracavity, be favorable to fuel atomizing, make the fuel combustion more abundant.
Description
Technical Field
The utility model relates to an automobile-used nozzle field, concretely relates to orifice plate for fuel sprayer.
Background
The oil nozzle is one of key components of an electronic fuel injection engine, and the performance of the engine is seriously influenced by the quality of the oil nozzle. The existing oil nozzle is generally controlled by an electromagnetic valve and mainly comprises a needle valve controlled by the electromagnetic valve and a valve seat for inserting the needle valve, a main cavity for medium circulation is arranged in the valve seat, an orifice plate is arranged at the bottom of the valve seat, an oil outlet hole is arranged at one end of the valve seat corresponding to the orifice plate, an auxiliary cavity opposite to the oil outlet hole is arranged on the orifice plate, a plurality of orifices are arranged on the auxiliary cavity, when the electromagnetic coil assembly is electrified, suction force is generated, the needle valve is sucked up, the oil outlet hole is opened, and the medium such as fuel oil and the like is sprayed out at high speed through the orifices after passing through the main,
for example, as shown in chinese patent No. CN211230679U, when the oil outlet of the valve seat sprays fuel to the nozzle plate and then to the nozzle, the sub-chamber (the thinning region) is used to deliver the fuel flowing out from the oil outlet to the nozzle through the sub-chamber to be discharged, i.e. the smaller the space of the sub-chamber, the higher the pressure of the fuel discharged to the nozzle, the better the atomization efficiency, so the existing sub-chamber has room for improvement.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to solve the above-mentioned deficiencies of the prior art,
the orifice plate with simple structure and good atomization effect is provided.
In order to achieve the above purpose, the utility model adopts the following technology: the utility model provides a nozzle plate for fuel sprayer, contains its body, sets up vice chamber on the body and sets up a plurality of orifice in vice intracavity, its characterized in that: the auxiliary cavity is internally provided with a pressurizing plate, the spray holes are arranged at one end of the auxiliary cavity far away from the pressurizing plate in a surrounding manner, the pressurizing plate is provided with an inner cavity corresponding to the oil outlet hole, and the pressurizing plate is provided with at least two diversion trenches for communicating the inner cavity with the auxiliary cavity.
By adopting the technical scheme, the pressurizing plate is arranged in the auxiliary cavity, the inner cavity corresponding to the oil outlet is arranged in the pressurizing plate, the guide groove is formed in the pressurizing plate to enable the inner cavity to be communicated with the spray hole in the auxiliary cavity, so that fuel oil forms great pressure in the auxiliary cavity after being compressed by the pressurizing plate, and a vortex is formed in the auxiliary cavity through the guide groove, so that fuel oil atomization is facilitated, and fuel oil combustion is more sufficient.
The injection hole plate for the oil injection nozzle can be further provided with: the number of the flow guide grooves is 3.
By adopting the technical scheme, when 3 diversion trenches are selected for use, the pressurization plates are equally divided by the diversion trenches, vortex is convenient to form, and the structure is more reasonable.
The injection hole plate for the oil injection nozzle can be further provided with: the diversion trenches are radially and equidistantly distributed on the pressurizing plate by taking the inner cavity as a round point.
By adopting the technical scheme, the guide grooves which are distributed in the radial direction at equal intervals can more uniformly convey fuel oil to different spray holes for spraying.
The injection hole plate for the oil injection nozzle can be further provided with: the spray holes are all arranged in a way of deviating from the central line of the diversion trench.
By adopting the technical scheme, the spray holes are not directly communicated with the central line of the guide groove, so that fuel oil is discharged through the guide groove, forms a vortex in the auxiliary cavity and then is accommodated in the spray holes for spraying, and the atomization effect is improved.
The injection hole plate for the oil injection nozzle can be further provided with: the number of the jet holes is 6.
By adopting the technical scheme, when the number of the jet holes is 6, the jet holes can be matched with the flow guide grooves, so that the oil injection efficiency is improved.
The injection hole plate for the oil injection nozzle can be further provided with: the thickness of the pressurizing plate is consistent with that of the body.
By adopting the technical scheme, the thickness of the pressurizing plate is consistent with that of the body, the stability of the orifice plate structure is ensured, and the spraying effect is improved.
The injection hole plate for the oil injection nozzle can be further provided with: the depth of the diversion trench is consistent with the depth of the auxiliary cavity and the depth of the inner cavity.
By adopting the technical scheme, the depth of the diversion trench is consistent with the depth of the auxiliary cavity and the depth of the inner cavity, the stability of the structure of the spray hole plate is ensured, and the spray effect is improved.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 3 is a plan view of embodiment 1 of the present invention.
Fig. 4 is a sectional view of embodiment 1 of the present invention combined with a valve seat.
Fig. 5 is a plan view of embodiment 2 of the present invention.
Fig. 6 is a plan view of embodiment 3 of the present invention.
Fig. 7 is a plan view of embodiment 4 of the present invention.
Detailed Description
Example 1:
as shown in fig. 1-3, a nozzle plate for an oil nozzle includes a body 1, an auxiliary cavity 2 disposed on the body 1, and 6 nozzle holes 3 disposed in the auxiliary cavity 2, a pressure increasing plate 4 is disposed in the auxiliary cavity 2, the nozzle holes 3 are disposed around one end of the auxiliary cavity 2 away from the pressure increasing plate 4, an inner cavity 41 corresponding to an oil outlet a is disposed on the pressure increasing plate 4, 3 flow guide grooves 42 are disposed on the pressure increasing plate 4 and communicate the inner cavity 41 with the auxiliary cavity 2, the flow guide grooves 42 are radially and equidistantly distributed on the pressure increasing plate 4 with the inner cavity 41 as a circular point, the nozzle holes 3 are disposed deviating from a central line of the flow guide grooves 42, the thickness of the pressure increasing plate 4 is consistent with the thickness of the body 1, and the depth of the flow guide grooves 42 is consistent with the depth of the auxiliary cavity 2 and the depth of the inner cavity 41.
As shown in fig. 4, the orifice plate body 1 is installed at one end of the valve seat a corresponding to the oil outlet a, the oil outlet a corresponds to the inner cavity 41 of the body 1, when fuel enters the orifice plate body 1 through the oil outlet a of the valve seat a, the fuel is collected in the inner cavity 41, and then flows to the auxiliary cavity 2 provided with the orifices 3 through the guide grooves 42 distributed with 3 strips in equal distance, so that the fuel forms great pressure in the auxiliary cavity 2 compressed by the pressure increasing plate 4, and further forms a vortex in the auxiliary cavity, which is beneficial to atomization of the fuel, and the fuel is combusted more fully.
Example 2
As shown in fig. 5, when the number of the guiding grooves 42 is 1, the number of the spray holes 3 is 2, the positions of the spray holes 3 are vertically staggered with the guiding grooves 42, and when fuel enters a gap between the spray hole plate body 1 and the valve seat through an oil outlet on the valve seat, the fuel is collected in the inner cavity 41 and flows to the auxiliary cavity 2 provided with the spray holes 3 through the single guiding groove 42, so that the fuel forms a great pressure in the auxiliary cavity 2 compressed by the pressurizing plate 4, and further a vortex is formed in the auxiliary cavity, which is beneficial to atomization of the fuel, and the fuel is combusted more fully.
Example 3
As shown in fig. 6, when the number of the guiding grooves 42 is 2, the number of the nozzle holes 3 is 4, the positions of the nozzle holes 3 correspond to the two sides of the guiding grooves 42, and when fuel enters the gap between the nozzle hole plate body 1 and the valve seat through the oil outlet on the valve seat, the fuel is collected in the inner cavity 41 and flows to the auxiliary cavity 2 provided with the nozzle holes 3 through the two guiding grooves 42, so that the fuel forms a great pressure in the auxiliary cavity 2 compressed by the pressurizing plate 4, and further a vortex is formed in the auxiliary cavity, which is beneficial to atomization of the fuel, and the fuel is combusted more fully.
Example 4
As shown in fig. 7, when the number of the guiding grooves 42 is 4, the number of the nozzle holes 3 is 8, at this time, the positions of the nozzle holes 3 correspond to the two sides of the guiding grooves 42 and are not arranged on the middle line of the guiding grooves 42, when fuel enters the gap between the nozzle hole plate body 1 and the valve seat through the oil outlet on the valve seat, the fuel is collected in the inner cavity 41, and then flows to the auxiliary cavity 2 provided with the nozzle holes 3 through the 4 guiding grooves 42, so that the fuel forms a great pressure in the auxiliary cavity 2 compressed by the pressurizing plate 4, and further forms a vortex in the auxiliary cavity, which is beneficial to the atomization of the fuel, and the fuel is combusted more fully.
The above is only the preferred embodiment of the present invention, not so limiting the scope of the present invention, and all the simple modifications and equivalent structural changes made by the present invention in the specification and drawings should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a nozzle plate for fuel sprayer, contains its body, sets up vice chamber on the body and sets up a plurality of orifice in vice intracavity, its characterized in that: the auxiliary cavity is internally provided with a pressurizing plate, the spray holes are arranged at one end of the auxiliary cavity far away from the pressurizing plate in a surrounding manner, the pressurizing plate is provided with an inner cavity corresponding to the oil outlet hole, and the pressurizing plate is provided with at least one diversion trench for communicating the inner cavity with the auxiliary cavity.
2. The nozzle plate according to claim 1, wherein: the number of the flow guide grooves is 3.
3. The nozzle plate according to claim 1, wherein: the spray holes are all arranged in a way of deviating from the central line of the diversion trench.
4. The nozzle plate according to claim 2, wherein: the diversion trenches are radially and equidistantly distributed on the pressurizing plate by taking the inner cavity as a round point.
5. The nozzle plate according to claim 3, wherein: the number of the jet holes is 6.
6. The nozzle plate according to any one of claims 1 to 5, wherein: the thickness of the pressurizing plate is consistent with that of the body.
7. The nozzle plate according to any one of claims 1 to 5, wherein: the depth of the diversion trench is consistent with the depth of the auxiliary cavity and the depth of the inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021772774.3U CN212898763U (en) | 2020-08-21 | 2020-08-21 | Spray orifice plate for fuel spray nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021772774.3U CN212898763U (en) | 2020-08-21 | 2020-08-21 | Spray orifice plate for fuel spray nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898763U true CN212898763U (en) | 2021-04-06 |
Family
ID=75246927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021772774.3U Expired - Fee Related CN212898763U (en) | 2020-08-21 | 2020-08-21 | Spray orifice plate for fuel spray nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898763U (en) |
-
2020
- 2020-08-21 CN CN202021772774.3U patent/CN212898763U/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: 20210406 |