CN210239895U - Oil nozzle matching part with sealing ring groove on end face - Google Patents
Oil nozzle matching part with sealing ring groove on end face Download PDFInfo
- Publication number
- CN210239895U CN210239895U CN201921411120.5U CN201921411120U CN210239895U CN 210239895 U CN210239895 U CN 210239895U CN 201921411120 U CN201921411120 U CN 201921411120U CN 210239895 U CN210239895 U CN 210239895U
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- China
- Prior art keywords
- needle valve
- valve body
- ring groove
- oil
- face
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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
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 239000000446 fuel Substances 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 53
- 238000000034 method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model discloses an oil spout nozzle matching parts of seal ring groove is taken to terminal surface, including the needle valve body, the internal activity of needle valve is equipped with the needle valve, the needle valve bottom is equipped with the needle valve conical surface, be equipped with the sealing conical surface on the needle valve conical surface, the bottom of needle valve body is equipped with the pressure chamber, the annular is equipped with the several orifice on the inner wall of pressure chamber, the top terminal surface of needle valve body is equipped with the seal ring groove, top terminal surface center department on the needle valve body is equipped with the direction mesopore, the upper and lower both sides in the direction mesopore are located and are equipped with the locating hole on the top terminal surface, the mesoporous one side in: the device has simple structure, reduces the energy when the oil leaks, makes the oil have insufficient kinetic energy and then leaks outwards, and on the other hand makes the top end surface of the needle valve body generate micro elastic deformation, and makes the original micro-concave end surface in a plane or a state close to the plane, so that the needle valve body is more tightly attached to two installation surfaces of the oil injector, and the gap is smaller.
Description
Technical Field
The utility model relates to a fuel sprayer matching parts technical field particularly, relates to a fuel sprayer matching parts of terminal surface area seal ring groove.
Background
The diesel engine is a common traditional power machine in China, has various specifications and varieties, wide application and wide range, is completely electrically controlled, the number of fuel supply times per working cycle is up to 4-7, the fuel supply pressure is generally up to 160-200 Mpa and is up to 260Mpa respectively, an oil pump nozzle is a core component of the diesel engine, and has a key effect on ensuring the performance of the diesel engine, and the oil nozzle is mainly applied to a vortex diesel engine with a separated combustion chamber.
The oil nozzle matching part and the oil injector body are connected in an installing mode without any sealing medium and are completely in rigid connection between surfaces, and high fuel oil pressure easily generates trace leakage between the surfaces, so that the oil return quantity is large, and the product performance is influenced.
An effective solution to the problems in the related art has not been proposed yet.
SUMMERY OF THE UTILITY MODEL
To the problem among the correlation technique, the utility model provides an oil nozzle matching parts of terminal surface area seal ring groove to overcome the above-mentioned technical problem that current correlation technique exists.
The technical scheme of the utility model is realized like this:
the utility model provides an oil nozzle matching parts of terminal surface area seal ring groove, includes the needle valve body, the internal activity of needle valve is equipped with the needle valve, the needle valve bottom is equipped with the needle valve conical surface, be equipped with the sealing conical surface on the needle valve conical surface, top one side oil feed way of needle valve body, be equipped with flourishing oil groove in the needle valve body, just flourishing oil groove with the oil feed way intercommunication, the bottom of needle valve body is equipped with the pressure chamber, the annular is equipped with the several orifice on the inner wall of pressure chamber, the top terminal surface of needle valve body is equipped with the seal ring groove, on the needle valve body top terminal surface center department is equipped with the direction mesopore, the upper and lower both sides in the direction mesopore are located be equipped with the locating hole on the top terminal surface, the one side in.
Furthermore, the bottom end of the needle valve is positioned on the conical surface of the needle valve, and a sealing ring line is arranged on the conical surface of the needle valve.
Furthermore, the outside symmetry of needle valve is equipped with several groups of direction pearl, the direction pearl with needle valve rolling connection.
Further, the range of the sealing ring groove on the top end face covers the oil inlet hole and the guide middle hole.
Furthermore, the end face of the top part is of a micro-concave structure.
Furthermore, a connecting gasket is arranged at the top end of the needle valve.
The utility model provides an oil nozzle matching parts of terminal surface area seal ring groove, beneficial effect as follows:
(1) the needle valve body is provided with a seal ring groove on the top end face, a guide middle hole is arranged in the center of the top end face on the needle valve body, the upper side and the lower side of the guide middle hole are provided with positioning holes on the top end face, one side of the guide middle hole is provided with an oil inlet hole which is communicated with an oil inlet channel, when high-pressure oil in the seal ring groove is communicated with the seal ring groove, the high-pressure oil is sprayed out in a free beam mode, most energy is lost due to sudden increase of space volume, meanwhile, the free beam causes static oil in the seal ring groove to generate vortex and lose part of energy, finally, the energy is basically lost when the oil extrudes to the outside through the seal ring groove, the energy loss is comprehensively expressed as reduction of pressure, so far, enough kinetic energy is not leaked to the outside, when the needle valve body is installed with an oil injector assembly, a certain fastening force is applied through a locking nut, and the end face, the shape of the top end face is a plane or a state close to the plane, so that the needle valve body is attached to the two installation faces of the oil injector more tightly, the gap is smaller, and the sealing efficiency is improved.
(2) And the bottom end of the needle valve is positioned on the conical surface of the needle valve, and a sealing ring line is arranged on the conical surface of the needle valve, so that the auxiliary sealing effect can be achieved.
(3) The guide balls are symmetrically arranged on the outer side of the needle valve and are in rolling connection with the needle valve, so that the needle valve can be prevented from deforming after a long time.
(4) The range of the sealing ring groove on the top end face covers the oil inlet hole and the guide middle hole, the fit clearance between the guide excircle of the needle valve and the guide middle hole can be properly loosened, and because the oil pressure in the sealing ring groove is equal, the efficiency is greatly improved, and the production cost is reduced.
(5) The top end surface is of a micro-concave structure.
(6) And a connecting gasket is arranged at the top end of the needle valve and can be used for connection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an oil nozzle matching part with a seal ring groove on an end face according to an embodiment of the invention;
fig. 2 is a schematic structural view of a top end surface of an oil nozzle matching part with a seal ring groove on an end surface according to an embodiment of the invention;
fig. 3 is a top view of an oil nozzle matching part with a seal ring groove on the end surface according to an embodiment of the present invention.
In the figure:
1. a needle valve body; 2. a needle valve; 3. a needle valve conical surface; 4. sealing the conical surface; 5. an oil inlet channel; 6. an oil containing groove; 7. spraying a hole; 8. a pressure chamber; 9. sealing the loop wire; 10. a seal ring groove; 11. a guide center hole; 12. an oil inlet hole; 13. positioning holes; 14. a top end face; 15. a guide bead; 16. and connecting the gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
The invention will be further described with reference to the accompanying drawings and specific embodiments:
the first embodiment is as follows:
referring to fig. 1-3, an oil nozzle matching part with a seal ring groove on an end surface according to an embodiment of the present invention includes a needle valve body 1, a needle valve 2 movably disposed in the needle valve body 1, a needle valve conical surface 3 disposed at a bottom end of the needle valve 2, a seal conical surface 4 disposed on the needle valve conical surface 3, an oil inlet channel 5 disposed on one side of a top portion of the needle valve body 1, an oil containing groove 6 disposed in the needle valve body 1, the oil containing groove 6 communicating with the oil inlet channel 5, a pressure chamber 8 disposed at a bottom of the needle valve body 1, a plurality of nozzle holes 7 annularly disposed on an inner wall of the pressure chamber 8, a seal ring groove 10 disposed on a top end surface 14 of the needle valve body 1, a guide middle hole 11 disposed at a center of the top end surface 14 of the needle valve body 1, positioning holes 13 disposed on the top end surface 14 at upper and lower sides of the guide middle hole 11, an oil, and the oil inlet hole 12 is communicated with the oil inlet passage 5.
Through the above technical scheme of the utility model, through being equipped with the seal ring groove 10 at the top end face 14 of the needle valve body 1, the needle valve body 1 is last top end face 14 center department is equipped with direction mesopore 11, the upper and lower both sides of direction mesopore 11 are located be equipped with locating hole 13 on the top end face 14, one side of direction mesopore 11 is equipped with inlet port 12, and inlet port 12 and oil feed 5 communicate, when the high pressure oil in the seal ring groove 10 communicates with seal ring groove 10, it spouts as the free beam, because the space volume increases suddenly and loses most of energy, the free beam arouses the static fluid in the seal ring groove 10 again to produce the swirl simultaneously, lose partial energy again, this strand of fluid has lost totally when squeezing outside again through seal ring groove 10 energy at last, these energy losses are synthesized and are expressed as the decline of pressure, so far have not enough kinetic energy again to leak outward, when the needle valve body 1 is installed with the oil sprayer assembly, a certain fastening force is applied through the locking nut, so that the top end face 14 of the needle valve body 1 generates a trace amount of elastic deformation, the shape of the top end face 14 is a plane or a state close to the plane, the needle valve body 1 is attached to two installation faces of the oil sprayer more tightly, the gap is smaller, and the sealing efficiency is improved.
Example two:
as shown in fig. 1-3, a sealing ring line 9 is arranged on the needle valve conical surface 3 at the bottom end of the needle valve 2, and can play a role in auxiliary sealing; a plurality of groups of guide balls 15 are symmetrically arranged on the outer side of the needle valve 2, and the guide balls 15 are in rolling connection with the needle valve 2, so that the needle valve 2 can be prevented from deforming after a long time; the range of the seal ring groove 10 on the top end surface 14 covers the oil inlet hole 12 and the guide middle hole 11, and the fit clearance between the guide excircle of the needle valve 2 and the guide middle hole 11 can be properly loosened, because the oil pressure in the seal ring groove 10 is equal, the efficiency is greatly improved, and the production cost is reduced; the top end surface 14 is of a micro-concave structure; a connecting washer 16 is provided at the top end of the needle 2 for the purpose of connection.
For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.
In practical application, when high-pressure oil in the seal ring groove 10 is communicated with the seal ring groove 10, the oil is sprayed out in a free beam mode, most energy is lost due to sudden increase of space volume, meanwhile, the free beam causes static oil in the seal ring groove 10 to generate vortex and lose part of energy, finally, the energy is basically lost when the oil is extruded to the outer side through the seal ring groove 10, the energy loss is comprehensively expressed as pressure reduction, so that insufficient kinetic energy is leaked outwards, when the needle valve body 1 and an oil injector assembly are installed, a certain fastening force is applied through a locking nut, the top end face 14 of the needle valve body 1 generates slight elastic deformation, the shape of the top end face 14 is a plane or a state close to the plane, therefore, the needle valve body 1 is attached to two installation faces of the oil injector more tightly, the gap is smaller, and the sealing efficiency is improved, the device has simple structure, reduces the energy when the oil leaks, makes the oil have insufficient kinetic energy and then leaks outwards, and on the other hand makes the top end surface 14 of the needle valve body 1 generate micro elastic deformation, and makes the original micro-concave end surface in a plane or a state close to the plane, so that the needle valve body 1 is more tightly attached to two installation surfaces of the oil injector, and the gap is smaller.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The oil nozzle matching part with the sealing ring groove on the end face is characterized by comprising a needle valve body (1), wherein a needle valve (2) is movably arranged in the needle valve body (1), a needle valve conical surface (3) is arranged at the bottom end of the needle valve (2), a sealing conical surface (4) is arranged on the needle valve conical surface (3), an oil inlet channel (5) is arranged on one side of the top of the needle valve body (1), an oil containing groove (6) is arranged in the needle valve body (1), the oil containing groove (6) is communicated with the oil inlet channel (5), a pressure chamber (8) is arranged at the bottom of the needle valve body (1), a plurality of spray holes (7) are annularly arranged on the inner wall of the pressure chamber (8), the sealing ring groove (10) is arranged on the end face (14) of the top of the needle valve body (1), a guide middle hole (11) is arranged at the center of the end face (14) of the top of the needle valve body (1), and positioning holes (13) are formed, and an oil inlet hole (12) is formed in one side of the guide middle hole (11), and the oil inlet hole (12) is communicated with the oil inlet channel (5).
2. The nozzle matching part with the seal ring groove on the end face of the claim 1 is characterized in that the seal ring line (9) is arranged on the needle valve conical surface (3) at the bottom end of the needle valve (2).
3. The nozzle matching part with the seal ring groove on the end face of the claim 1 is characterized in that, the outside of the needle valve (2) is symmetrically provided with a plurality of groups of guide beads (15), and the guide beads (15) are connected with the needle valve (2) in a rolling way.
4. The fuel injector matching part with the seal ring groove on the end face is characterized in that the range of the seal ring groove (10) on the top end face (14) covers the fuel inlet hole (12) and the guide middle hole (11).
5. The injector nozzle assembly with a seal ring groove on the end face as claimed in claim 1, characterized in that the top end face (14) is of a micro-concave structure.
6. The nozzle matching part with the seal ring groove on the end surface of the claim 1 is characterized in that the top end of the needle valve (2) is provided with a connecting gasket (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921411120.5U CN210239895U (en) | 2019-08-28 | 2019-08-28 | Oil nozzle matching part with sealing ring groove on end face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921411120.5U CN210239895U (en) | 2019-08-28 | 2019-08-28 | Oil nozzle matching part with sealing ring groove on end face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210239895U true CN210239895U (en) | 2020-04-03 |
Family
ID=69965281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921411120.5U Expired - Fee Related CN210239895U (en) | 2019-08-28 | 2019-08-28 | Oil nozzle matching part with sealing ring groove on end face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210239895U (en) |
-
2019
- 2019-08-28 CN CN201921411120.5U patent/CN210239895U/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: 20200403 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |