CN220452076U - Oil rail fuel injector assembly and engine - Google Patents
Oil rail fuel injector assembly and engine Download PDFInfo
- Publication number
- CN220452076U CN220452076U CN202322222432.4U CN202322222432U CN220452076U CN 220452076 U CN220452076 U CN 220452076U CN 202322222432 U CN202322222432 U CN 202322222432U CN 220452076 U CN220452076 U CN 220452076U
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- thread
- connecting seat
- fuel injector
- injector
- fuel
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- 239000000446 fuel Substances 0.000 title claims abstract description 97
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 230000013011 mating Effects 0.000 claims 5
- 239000000428 dust Substances 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses an oil rail oil injector assembly and an engine, wherein the oil rail oil injector assembly comprises: the oil rail, connecting seat, sprayer and sealing module, the oil rail is located to the connecting seat, and the connecting seat is equipped with first screw thread, and the sprayer passes through connecting seat and oil rail intercommunication, and the sprayer is equipped with the second screw thread with first screw thread complex, and sealing module locates between connecting seat and the sprayer. The technical scheme of the utility model aims to improve the connection stability of the connecting seat and the fuel injector and reduce the risk of fuel leakage.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to an oil rail oil sprayer assembly and an engine.
Background
In prior art, the oil rail sprayer assembly includes the oil rail, connects the connecting seat of oil rail and the sprayer of connecting seat, and the sprayer passes through the elasticity clamping and is connected with the connecting seat, when maintaining the sprayer, needs to dismantle the elasticity clamping, and the elasticity clamping takes place to warp easily after many times dismouting, and the elasticity clamping after the deformation makes sprayer and connecting seat break away from mutually easily to the risk of fuel leakage has been improved.
Disclosure of Invention
The utility model mainly aims to provide an oil rail oil sprayer assembly, which aims to improve the connection stability of a connecting seat and an oil sprayer and reduce the risk of fuel leakage.
In order to achieve the above object, the present utility model provides an oil rail injector assembly comprising:
an oil rail;
the connecting seat is arranged on the oil rail and is provided with a first thread;
the oil sprayer is communicated with the oil rail through the connecting seat and is provided with a second thread matched with the first thread; and
and the sealing module is arranged between the connecting seat and the fuel injector.
Optionally, the first thread and the second thread are each configured as fine-pitch threads.
Optionally, the first thread and the second thread are each configured as a coarse thread.
Optionally, the first thread is disposed on an outer circumferential surface of the fuel injector, and the second thread is disposed on an inner circumferential surface of the connection seat.
Optionally, the sealing module comprises a first sealing ring abutting against the outer circumferential surface of the fuel injector and the inner circumferential surface of the connecting seat.
Optionally, the first thread is disposed on an inner circumferential surface of the fuel injector, and the second thread is disposed on an outer circumferential surface of the connecting seat.
Optionally, the sealing module comprises a first sealing ring abutting against the inner circumferential surface of the fuel injector and the outer circumferential surface of the connecting seat.
Optionally, the connection seat has a first sealing surface, the fuel injector has a second sealing surface opposite to the first sealing surface in the axial direction of the first thread, and the sealing module further comprises a second sealing ring abutting the first sealing surface and the second sealing surface.
Optionally, the first thread is disposed between the first seal ring and the second seal ring in an axial direction of the first thread.
Optionally, in a direction that the fuel injector is close to the fuel rail, the second sealing ring, the first thread, and the first sealing ring are sequentially arranged.
Optionally, a gap between the first thread and the second thread extends to the second seal ring.
Optionally, the second sealing ring is disposed between the first thread and the first sealing ring in an axial direction of the first thread.
Optionally, the connecting seat is provided with a first assembling limiting surface, the oil sprayer is provided with a second assembling limiting surface opposite to the first assembling limiting surface in the axial direction of the first thread, and the first assembling limiting surface abuts against the second assembling limiting surface.
The utility model also provides an engine comprising the oil rail oil injector assembly.
In the technical scheme of the utility model, the oil rail oil sprayer assembly comprises an oil rail, a connecting seat, an oil sprayer and a sealing module. The connecting seat is arranged on the oil rail, and the oil sprayer is communicated with the oil rail through the connecting seat. The connecting seat is provided with a first thread, the fuel injector is provided with a second thread matched with the first thread, and it can be understood that the fuel injector can rotate relative to the connecting seat to enable the first thread to be matched with the second thread in the process of assembling the fuel injector on the connecting seat. The first screw thread and the second screw thread are difficult for taking place deformation, so, even if connecting seat and sprayer dismouting many times, connecting seat and sprayer under first screw thread and second screw-thread fit are difficult for breaking away from mutually yet, are favorable to improving connecting seat and sprayer's connection stability to reduce the risk of fuel leakage. In addition, as the first screw thread is arranged on the surface of the connecting seat and the second screw thread is arranged on the surface of the fuel injector, the occupied space of the fuel rail fuel injector assembly is saved. The sealing module is arranged between the connecting seat and the oil injector, so that on one hand, the risk of fuel flowing out from a gap between the connecting seat and the oil injector is reduced, and on the other hand, dust in the external environment enters the oil injector from the gap between the connecting seat and the oil injector, and the occurrence of the condition that the fuel is polluted is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a portion of an embodiment of a rail injector assembly according to the present utility model;
FIG. 2 is a schematic view of a portion of a fuel rail injector according to another embodiment of the present utility model.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 100 | Connecting seat | 220 | Second assembly limiting surface |
| 110 | First screw thread | 230 | Second sealing surface |
| 120 | First assembly limiting surface | 300 | Sealing module |
| 130 | First sealing surface | 310 | First sealing ring |
| 200 | Fuel injector | 320 | Second sealing ring |
| 210 | Second screw thread |
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship between the components, the movement condition, etc. in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in abutment, or in communication between two elements or in interaction with each other, unless explicitly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
In prior art, the oil rail sprayer assembly includes the oil rail, connects the connecting seat of oil rail and the sprayer of connecting seat, and the sprayer passes through the elasticity clamping and is connected with the connecting seat, when maintaining the sprayer, needs to dismantle the elasticity clamping, and the elasticity clamping takes place to warp easily after many times dismouting, and the elasticity clamping after the deformation makes sprayer and connecting seat break away from mutually easily to the risk of fuel leakage has been improved. Therefore, the utility model provides an oil rail oil sprayer assembly, which aims to improve the connection stability of a connecting seat and an oil sprayer and reduce the risk of fuel leakage.
Referring to fig. 1 and 2, in one embodiment of the present utility model, the rail injector assembly includes a rail, a connection block 100, an injector 200, and a seal module 300. The connecting seat 100 is arranged on the oil rail, and the fuel injector 200 is communicated with the oil rail through the connecting seat 100. The connection base 100 is provided with a first thread 110 and the fuel injector 200 is provided with a second thread 210 which cooperates with the first thread 110. It will be appreciated that during assembly of the fuel injector 200 to the connection base 100, the fuel injector 200 may be rotated relative to the connection base 100 to cause the first thread 110 and the second thread 210 to cooperate. The first thread 110 and the second thread 210 are not easy to deform, so that even if the connecting seat 100 and the fuel injector 200 are disassembled and assembled for multiple times, the connecting seat 100 and the fuel injector 200 under the cooperation of the first thread 110 and the second thread 210 are not easy to separate, the connection stability of the connecting seat 100 and the fuel injector 200 is improved, and the risk of fuel leakage is reduced. In addition, since the first thread 110 is disposed on the surface of the connection seat 100 and the second thread 210 is disposed on the surface of the fuel injector 200, the occupied space of the fuel rail fuel injector assembly is advantageously saved. The sealing module 300 is disposed between the connection base 100 and the fuel injector 200, so that on one hand, the risk of fuel flowing out from a gap between the connection base 100 and the fuel injector 200 is reduced, and on the other hand, dust in the external environment enters the fuel injector 200 from the gap between the connection base 100 and the fuel injector 200, and the occurrence of pollution of the fuel is reduced.
Alternatively, in an embodiment, both the first thread 110 and the second thread 210 are configured as fine-pitch threads. The small screw angle of the fine teeth is smaller, which is more beneficial to self-locking of the screw thread and improving the connection stability of the connecting seat 100 and the fuel injector 200. In addition, the fine threads have small pitch, and on the same thread length, the number of threads screwed in is more, so that the tightness between the connecting seat 100 and the fuel injector 200 is improved, on one hand, the outflow of fuel from a gap between the connecting seat 100 and the fuel injector 200 is reduced, on the other hand, dust in the external environment enters the fuel injector 200 from the gap between the connecting seat 100 and the fuel injector 200 is reduced, and the occurrence of pollution of the fuel is reduced. However, the present design is not limited thereto, and in other embodiments, the first threads 110 and the second threads 210 are configured as coarse threads. The number of the teeth with the same length of the coarse tooth thread is small, the cross section size of each tooth is larger, the stress is good, and the vibration of an engine is resisted.
It is worth mentioning that the specific parameters of the fine thread and the coarse thread can be selected from, but not limited to, GB/T193-2003, and handbook of automobile standards, 2012.
Optionally, in an embodiment, the first thread 110 is provided on an outer circumferential surface of the fuel injector 200, and the second thread 210 is provided on an inner circumferential surface of the connection seat 100. As such, connection base 100 encloses at least a portion of fuel injector 200, and at least a portion of fuel injector 200 is protected by connection base 100, which is beneficial for improving the structural integrity of fuel injector 200.
Optionally, in an embodiment, seal module 300 includes a first seal ring 310 that abuts the outer peripheral surface of fuel injector 200 and the inner peripheral surface of connection seat 100. In this way, a radial seal of the connection seat 100 and the fuel injector 200 is achieved, on the one hand reducing the risk of fuel flowing out from the gap between the connection seat 100 and the fuel injector 200, and on the other hand reducing the ingress of dust in the external environment into the fuel injector 200 from the gap between the connection seat 100 and the fuel injector 200, reducing the occurrence of fuel contamination.
Alternatively, in still another embodiment, the first screw thread 110 is provided on the inner circumferential surface of the fuel injector 200, and the second screw thread 210 is provided on the outer circumferential surface of the connection seat 100. As such, fuel injector 200 encloses at least a portion of connection base 100, and at least a portion of connection base 100 is protected by fuel injector 200, which is beneficial for improving the structural integrity of connection base 100.
Optionally, in yet another embodiment, seal module 300 includes a first seal ring 310 that abuts an inner peripheral surface of fuel injector 200 and an outer peripheral surface of connection seat 100. In this way, radial sealing of the connection seat 100 and the fuel injector 200 is achieved, on one hand, fuel flowing out from a gap between the connection seat 100 and the fuel injector 200 is reduced, and on the other hand, dust in the external environment enters the fuel injector 200 from the gap between the connection seat 100 and the fuel injector 200 is reduced, so that the occurrence of pollution of the fuel is reduced.
Optionally, in an embodiment, the connection seat 100 has a first sealing surface 130, and the fuel injector 200 has a second sealing surface 230 opposite the first sealing surface 130 in the axial direction of the first thread 110, and the seal module 300 further includes a second sealing ring 320 abutting the first sealing surface 130 and the second sealing surface 230. In this way, an axial sealing of the connection seat 100 and the fuel injector 200 is achieved, on the one hand, the risk of fuel flowing out from the gap between the connection seat 100 and the fuel injector 200 is further reduced, and on the other hand, dust in the external environment enters the fuel injector 200 from the gap between the connection seat 100 and the fuel injector 200 is reduced, and the occurrence of fuel pollution is reduced.
There are a variety of ways in which the first thread 110, the first seal ring 310, and the second seal ring 320 may be arranged, and optionally, in one embodiment, the first thread 110 is disposed between the first seal ring 310 and the second seal ring 320 in an axial direction of the first thread 110. However, the present design is not limited thereto, and in other embodiments, the second seal ring 320 is disposed between the first thread 110 and the first seal ring 310 in the axial direction of the first thread 110.
Optionally, in an embodiment, the second seal 320, the first thread 110, and the first seal 310 are disposed in sequence in a direction of the injector 200 approaching the rail. However, the present design is not limited thereto, and in other embodiments, the first seal ring 310, the first thread 110, and the second seal ring 320 are disposed in order in the direction of the injector 200 approaching the rail.
Optionally, in an embodiment, the gap between the first thread 110 and the second thread 210 extends to the second seal ring 320. In this manner, under the group of second seal rings 320, the difficulty of dust entering the gap is increased, thereby increasing the entry of dust from the gap into fuel injector 200. In addition, the difficulty of fuel flowing from the gap to the external environment is also increased.
Optionally, in an embodiment, the first seal 310 is configured as an O-ring seal. However, the present design is not limited thereto, and in other embodiments, the first sealing ring 310 may be any other type of sealing ring, which is not limited thereto.
Optionally, in an embodiment, the second seal 320 is configured as a flat gasket. However, the present design is not limited thereto, and in other embodiments, the second sealing ring 320 may be any other type of sealing ring, which is not limited thereto.
Optionally, in an embodiment, the connection seat 100 has a first assembling limit surface 120, and in an axial direction of the first thread 110, the fuel injector 200 has a second assembling limit surface 220 opposite to the first assembling limit surface 120, and the first assembling limit surface 120 abuts against the second assembling limit surface 220. In this way, in the process of assembling the fuel injector 200 to the connection seat 100, the fuel injector 200 is rotated relative to the connection seat 100, so that the first thread 110 is matched with the second thread 210, when the first assembly limiting surface 120 and the second assembly limiting surface 220 are abutted, the fuel injector 200 stops rotating relative to the connection seat 100, and the screwing depth of the first thread 110 relative to the second thread 210 is limited, so that the assembly of the fuel injector 200 and the connection seat 100 is completed. Thus, the method is beneficial to improving the product consistency of the mass-produced oil rail oil injector assembly. It should be noted that, in an embodiment, when the first assembly limiting surface 120 abuts the second assembly limiting surface 220, the second sealing ring 320 abuts the first sealing surface 130 and the second sealing surface 230, so that the time for assembling the rail injector assembly is reduced.
The utility model also provides an engine, which comprises the oil rail oil sprayer assembly, and the specific structure of the oil rail oil sprayer assembly refers to the embodiment, and because the engine adopts all the technical schemes of all the embodiments, the engine at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
Claims (13)
1. An oil rail injector assembly, comprising:
an oil rail;
the connecting seat is arranged on the oil rail and is provided with a first thread;
the oil sprayer is communicated with the oil rail through the connecting seat and is provided with a second thread matched with the first thread; and
and the sealing module is arranged between the connecting seat and the fuel injector.
2. The rail injector assembly of claim 1, wherein the first thread and the second thread are each configured as fine-pitch threads;
or, the first thread and the second thread are each configured as a coarse thread.
3. The fuel rail injector assembly of claim 1, wherein said first thread is disposed on an outer peripheral surface of said injector and said second thread is disposed on an inner peripheral surface of said connection block.
4. The fuel rail injector assembly of claim 3 wherein said seal module includes a first seal ring abutting said injector outer peripheral surface and said connection block inner peripheral surface.
5. The fuel rail injector assembly of claim 1, wherein the first thread is provided on an inner circumferential surface of the fuel injector and the second thread is provided on an outer circumferential surface of the connecting seat.
6. The fuel rail injector assembly of claim 5, wherein said seal module includes a first seal ring abutting said injector inner peripheral surface and said connection block outer peripheral surface.
7. The rail injector assembly of claim 4 or 6, wherein the connection seat has a first sealing surface, the injector has a second sealing surface opposite the first sealing surface in an axial direction of the first thread, and the seal module further comprises a second sealing ring abutting the first sealing surface and the second sealing surface.
8. The fuel rail injector assembly of claim 7, wherein said first thread is disposed between said first seal ring and said second seal ring in an axial direction of said first thread.
9. The fuel rail injector assembly of claim 8, wherein said second seal, said first thread, and said first seal are disposed in sequence in a direction of said injector approaching said fuel rail.
10. The rail injector assembly of claim 8, wherein a gap between the first thread and the second thread extends to the second seal ring.
11. The fuel rail injector assembly of claim 7, wherein said second seal ring is disposed between said first thread and said first seal ring in an axial direction of said first thread.
12. The fuel rail injector assembly of claim 1, wherein said connection block has a first mating stop surface, said injector having a second mating stop surface opposite said first mating stop surface in an axial direction of said first thread, said first mating stop surface abutting said second mating stop surface.
13. An engine comprising a rail injector assembly as claimed in any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322222432.4U CN220452076U (en) | 2023-08-17 | 2023-08-17 | Oil rail fuel injector assembly and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322222432.4U CN220452076U (en) | 2023-08-17 | 2023-08-17 | Oil rail fuel injector assembly and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452076U true CN220452076U (en) | 2024-02-06 |
Family
ID=89736580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322222432.4U Active CN220452076U (en) | 2023-08-17 | 2023-08-17 | Oil rail fuel injector assembly and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452076U (en) |
-
2023
- 2023-08-17 CN CN202322222432.4U patent/CN220452076U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240221 Address after: 310000 1760 Jiangling Road, Binjiang District, Hangzhou, Zhejiang. Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region after: China Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Patentee after: Tianjin Alcohol Hydrogen Research and Development Co.,Ltd. Address before: 310000 1760 Jiangling Road, Binjiang District, Hangzhou, Zhejiang. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region before: China Patentee before: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. |
|
| TR01 | Transfer of patent right |