CN213063817U - High-efficient sealed oil spout structure of fuel sprayer - Google Patents
High-efficient sealed oil spout structure of fuel sprayer Download PDFInfo
- Publication number
- CN213063817U CN213063817U CN202021991857.1U CN202021991857U CN213063817U CN 213063817 U CN213063817 U CN 213063817U CN 202021991857 U CN202021991857 U CN 202021991857U CN 213063817 U CN213063817 U CN 213063817U
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- Prior art keywords
- valve
- parallel
- ball
- valve hole
- valve opening
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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
Links
- 239000000446 fuel Substances 0.000 title claims description 13
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 230000007547 defect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model relates to a high-efficiency sealing oil injection structure of an oil injection nozzle, which comprises a valve seat and a valve core, a circulation cavity is arranged in the valve seat, a valve hole communicated with the circulation cavity is arranged at the bottom of the valve seat, the valve core is inserted in the circulation cavity, one end of the valve core corresponding to the valve hole is provided with a ball, one end of the ball contacting with the valve hole is provided with a parallel sealing surface, the parallel sealing surfaces are parallel to the valve hole in the horizontal direction, the surface of the parallel sealing surfaces is not smaller than the area of the valve hole, thereby changing arc contact into line contact, effectively improving the defects, reducing the processing cost, prolonging the service life of the ball, simultaneously increasing the air tightness between the parallel sealing surfaces and the valve hole, and then increased its pressure when spouting, improved oil spout efficiency, simultaneously because the parallel seal face not with the contact of valve opening and be parallel to each other, also solved the problem that original ball passed the valve opening and blockked up the nozzle opening.
Description
Technical Field
The utility model relates to an automobile-used nozzle field, concretely relates to high-efficient sealed oil spout structure of 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, the existing oil nozzle 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 formed in the valve seat, an orifice plate is arranged at the bottom of the valve seat, one end, corresponding to the orifice plate, of the valve seat is provided with an oil outlet, an auxiliary cavity opposite to the oil outlet 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 is opened, and the medium such as fuel oil is sprayed out at high speed through the orifices after passing through the main.
The prior Chinese utility model patent with the application number of CN201821979877.X discloses an electromagnetic oil nozzle, which comprises a magnetic yoke, an iron core and an oil inlet nozzle … …, wherein a valve hole is formed in a valve seat, a ball used for sealing the valve hole is further arranged on the valve seat, an armature is fixedly connected with the ball, a reset piece used for resetting the armature to enable the ball to seal the valve hole is abutted between the armature and the oil inlet nozzle, and the part shown in figure 1 can see that the valve hole in the valve seat in the patent is sealed by the round ball, but the structure has many defects, the first is that the valve hole has very high requirement on the roundness of a ball body in order to meet the sealing requirement, the requirement on the processing shape of the contact surface with the ball body is very high, the manufacturing cost is increased, the second is that the service life is short, the ball body is easy to wear under the same service life, the sealing performance is fast to reduce after wear, and the third is poor foreign matter, the foreign matter that the granule is big can cause sealed inefficacy, and the fourth is because sealing performance's reduction, and the fuel sprayer is when carrying out the oil spout, can not totally airtight whole valve opening, makes oil spout in-process pressure not enough, reduces the atomization effect of oil spout in-process, and the fifth is among the prior art ball along with case up-and-down motion in-process, and the ball end passes the valve opening easily and touches the orifice plate to block up the nozzle opening, influence injection efficiency.
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 high-efficiency sealing oil injection structure is simple in structure, strong in sealing performance, long in service life and good in atomization effect.
In order to achieve the above purpose, the utility model adopts the following technology: the utility model provides a high-efficient sealed oil spout structure of fuel sprayer, including disk seat and case, be equipped with the circulation chamber in the disk seat, the disk seat bottom is equipped with the valve opening that switches on mutually with the circulation chamber, the case is inserted and is established at the circulation intracavity, the one end that the case corresponds the valve opening is equipped with ball, its characterized in that: the ball is equipped with the parallel sealed face with the one end of valve opening contact, the parallel sealed face is parallel to each other and not contact each other with the valve opening horizontal direction.
By adopting the technical scheme, at present, on the oil injection structure applied to the oil injection nozzle, the mechanical contact of the ball and the valve hole is adopted to inject the fuel, because the ball is a spherical surface and the contact with the valve hole is arc contact, the roundness of the ball is required to be very high, and the requirement on the valve hole processing shape of the ball contact surface is also very high, thus the processing cost is increased, the ball is easy to wear, the sealing performance is reduced quickly after the ball is worn and the foreign matter resistance performance is poor, if the fuel has large-particle foreign matters, the sealing failure can be caused when the foreign matters enter the sealing position, the utility model adopts the ball to arrange a parallel sealing surface towards one end of the valve, namely, the arc convex spherical surface is cut at one end of the valve hole corresponding to the ball, the parallel sealing surface and the valve hole are mutually parallel, thereby the line contact is realized, the defects are effectively improved, the processing cost is reduced, meanwhile, the air tightness between the parallel sealing surface and the valve hole is increased, the pressure intensity of the injection is increased, the oil injection efficiency is improved, and meanwhile, the problem that the original ball penetrates through the valve hole to block the oil injection hole is solved because the parallel sealing surface is not in contact with the valve hole and is parallel to the valve hole.
The efficient sealing oil injection structure of the oil injection nozzle can be further set as follows: one end of the valve hole, corresponding to the circulation cavity, extends outwards to form a flow guide wall, and the parallel sealing surface is abutted to the flow guide wall.
Adopt above-mentioned technical scheme, through set up the water conservancy diversion wall between circulation chamber and valve opening, help fuel sprayer will circulate the fuel guiding valve hole department of intracavity fast, through with parallel seal face and water conservancy diversion wall butt mutually to make parallel seal face change into with the water conservancy diversion wall butt sealed, improve the gas tightness, and then improve oil spout efficiency.
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 an embodiment of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a cross-sectional view of an embodiment of the present invention.
Fig. 4 is an exploded view of fig. 3.
Detailed Description
As shown in fig. 1-4, a high-efficiency sealing oil injection structure of an oil injection nozzle includes a valve seat 1 and a valve core 2, a circulation cavity 11 is provided in the valve seat 1, a valve hole 12 communicated with the circulation cavity 11 is provided at the bottom of the valve seat 1, the valve core 2 is inserted in the circulation cavity 11, a ball 21 is provided at one end of the valve core 2 corresponding to the valve hole 12, a parallel sealing surface 211 is provided at one end of the ball 21 contacting the valve hole 12, the parallel sealing surface 211 is parallel to the valve hole 12 in the horizontal direction and does not contact with the valve hole 12, one end of the valve hole 12 corresponding to the circulation cavity 11 extends outward to form a flow guide wall 121, and the parallel sealing surface 211 abuts against the flow guide wall 121.
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 (2)
1. The utility model provides a high-efficient sealed oil spout structure of fuel sprayer, including disk seat and case, be equipped with the circulation chamber in the disk seat, the disk seat bottom is equipped with the valve opening that switches on mutually with the circulation chamber, the case is inserted and is established at the circulation intracavity, the one end that the case corresponds the valve opening is equipped with ball, its characterized in that: the ball corresponds the one end of valve opening and is equipped with parallel sealed face, parallel sealed face and valve opening horizontal direction are parallel to each other and do not contact each other.
2. The highly efficient sealing fuel injection structure of the fuel injection nozzle of claim 1, wherein: one end of the valve hole, corresponding to the circulation cavity, extends outwards to form a flow guide wall, and the parallel sealing surface is abutted to the flow guide wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021991857.1U CN213063817U (en) | 2020-09-11 | 2020-09-11 | High-efficient sealed oil spout structure of fuel sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021991857.1U CN213063817U (en) | 2020-09-11 | 2020-09-11 | High-efficient sealed oil spout structure of fuel sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213063817U true CN213063817U (en) | 2021-04-27 |
Family
ID=75557747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021991857.1U Expired - Fee Related CN213063817U (en) | 2020-09-11 | 2020-09-11 | High-efficient sealed oil spout structure of fuel sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213063817U (en) |
-
2020
- 2020-09-11 CN CN202021991857.1U patent/CN213063817U/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: 20210427 |