CN221032898U - Sealing structure of high-pressure oil pipe of engine - Google Patents
Sealing structure of high-pressure oil pipe of engine Download PDFInfo
- Publication number
- CN221032898U CN221032898U CN202322484537.7U CN202322484537U CN221032898U CN 221032898 U CN221032898 U CN 221032898U CN 202322484537 U CN202322484537 U CN 202322484537U CN 221032898 U CN221032898 U CN 221032898U
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- pressure oil
- engine
- pressure
- nut
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 239000000446 fuel Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 64
- 239000000295 fuel oil Substances 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a sealing structure of a high-pressure oil pipe of an engine, which relates to the technical field of engine fuel systems and comprises a high-pressure oil pipe, wherein the high-pressure oil pipe is connected with a high-pressure connecting rod of an oil sprayer, an annular sealing ring which is in sealing fit with a high-pressure oil pipe nut is arranged on the outer wall of the high-pressure connecting rod of the oil sprayer, a rubber sheath is arranged at the rear end of the high-pressure oil pipe nut, a high-pressure oil pipe bushing is arranged between the high-pressure oil pipe nut and the high-pressure oil pipe, an oil drain groove is arranged on the high-pressure oil pipe bushing, and an incomplete sealing structure between the high-pressure oil pipe, the rubber sheath and the high-pressure oil pipe nut solves the problems that when the sealing failure of the high-pressure oil pipe sealing structure at a joint occurs, the leakage is difficult to observe from the outside, the timely maintenance of the leakage position is not facilitated, and the leaked fuel in the oil pipe directly enters the engine from the joint, so that the engine fails, and the normal operation of the engine and the safety of personnel are affected.
Description
Technical Field
The utility model relates to the technical field of engine fuel systems, in particular to a sealing structure of an engine high-pressure oil pipe.
Background
The oil pipe is used as a pipeline for connecting the engine oil pump, the high-pressure oil rail and the oil nozzle, fuel is provided through the oil pipe, the oil pipe is divided into low pressure and high pressure, the high-pressure oil pipe requires the oil pipe to bear higher oil pressure, and absolute sealing is required to be ensured in the working process. The traditional high-pressure oil pipe sealing structure is characterized in that the joint is easy to seal and fail to leak due to the impact of high-pressure fuel in the pipe, the leakage condition is not easy to observe from the outside, the leakage is not convenient to maintain in time, the leaked fuel in the oil pipe directly enters the engine from the joint, the fuel is mixed into engine oil, the engine oil can be diluted, the lubrication effect is reduced, the engine is caused to fail, and the normal operation of the engine and the personnel safety are influenced.
Therefore, in order to improve the sealing reliability of the high-pressure oil pipe, it is necessary to design a sealing structure of the high-pressure oil pipe of the engine.
Disclosure of utility model
The utility model aims to overcome the defects of the background technology and provide a sealing structure of an engine high-pressure oil pipe.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides an engine high pressure oil pipe seal structure, includes high pressure oil pipe, its special character lies in: the high-pressure oil pipe is connected with the high-pressure connecting rod of the oil sprayer, a circular sealing ring which is in sealing fit with the high-pressure oil pipe nut is arranged on the outer wall of the high-pressure connecting rod of the oil sprayer, a rubber sheath is arranged at the rear end of the high-pressure oil pipe nut, a high-pressure oil pipe bushing is arranged between the high-pressure oil pipe nut and the high-pressure oil pipe, an oil drain groove is arranged on the high-pressure oil pipe bushing, and the high-pressure oil pipe is in a non-complete sealing structure with the rubber sheath and the high-pressure oil pipe nut.
As a further optimization scheme of the utility model, the outer part of the high-pressure oil pipe nut is connected with the cover sealing ring in a sealing way.
Compared with the prior art, the utility model has the following advantages:
1) The annular sealing ring arranged on the outer wall of the high-pressure connecting rod of the oil sprayer is matched and sealed with the nut of the high-pressure oil pipe, so that the leakage of the oil in the pipe to the inside of the engine when the abnormal leakage of the joint of the high-pressure oil pipe is effectively prevented, and the reliability of the engine is improved.
2) According to the utility model, the oil drain groove is arranged on the high-pressure oil pipe bushing, when oil pipe sealing failure occurs, and fuel oil leaks, the fuel oil can flow out of the high-pressure oil pipe nut through the oil drain groove, so that the leakage condition can be observed from the outer side of the engine, the leakage condition is avoided from being difficult to observe, the leakage position is not maintained in time, the engine is failed, and the safety of the sealing structure is improved.
3) The rubber sheath arranged at the rear end of the high-pressure oil pipe nut can prevent external water, dust and the like from entering the sealing structure through the rear end of the high-pressure oil pipe nut, so that the sealing structure has better sealing performance and the effectiveness of the whole sealing structure is improved.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a top view of the high pressure conduit liner of the present utility model;
FIG. 3 is a front view of the high pressure conduit liner of the present utility model;
In the figure, 1-high pressure oil pipe, 2-rubber sheath, 3-high pressure oil pipe nut, 4-oil drain groove, 5-high pressure oil pipe bushing, 6-annular sealing ring, 7-high pressure connecting rod of oil sprayer and 8-cover sealing ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
As can be seen with reference to the accompanying drawings: the utility model provides an engine high pressure oil pipe seal structure, have high pressure oil pipe 1, high pressure oil pipe 1 is connected with sprayer high pressure connecting rod 7, install on the outer wall of sprayer high pressure connecting rod 7 with high pressure oil pipe nut 3 sealing fit's annular sealing washer 6, rubber sheath 2 is installed to the rear end of high pressure oil pipe nut 3, install high pressure oil pipe bush 5 between high pressure oil pipe nut 3 and the high pressure oil pipe 1, be provided with oil drain groove 4 on the high pressure oil pipe bush 5, incomplete seal structure between high pressure oil pipe 1 and rubber sheath 2 and the high pressure oil pipe nut 3.
The rear end of the high-pressure oil pipe nut 3 is provided with a rubber sheath 2, and the outside of the high-pressure oil pipe nut 3 is in sealing connection with a cover sealing ring 8.
When oil pipe seal failure occurs, fuel oil leaks, and the fuel oil can flow out of the high-pressure oil pipe nut through the oil drain groove, so that the leakage condition can be observed from the outer side of the engine, the leakage condition is avoided from being difficult to observe, and the condition of maintaining the leakage position in time is not caused.
In actual use, the high-pressure oil pipe bushing 5 is uniformly distributed with four arc grooves with the width A of 0.9-0.94mm, the depth C of 0.18-0.21mm, the diameter B of 0.9-1.2mm and the radian radius D of 0.4-0.6.
The utility model is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.
Claims (2)
1. The utility model provides an engine high pressure oil pipe seal structure, includes high pressure oil pipe (1), its characterized in that: the novel oil sprayer is characterized in that the high-pressure oil pipe (1) is connected with the high-pressure connecting rod (7) of the oil sprayer, an annular sealing ring (6) which is in sealing fit with the high-pressure oil pipe nut (3) is arranged on the outer wall of the high-pressure connecting rod (7) of the oil sprayer, a rubber sheath (2) is arranged at the rear end of the high-pressure oil pipe nut (3), a high-pressure oil pipe bushing (5) is arranged between the high-pressure oil pipe nut (3) and the high-pressure oil pipe (1), an oil drain groove (4) is arranged on the high-pressure oil pipe bushing (5), and a non-complete sealing structure is arranged between the high-pressure oil pipe (1) and the rubber sheath (2) and the high-pressure oil pipe nut (3).
2. The engine high-pressure oil pipe sealing structure according to claim 1, wherein: the outside of the high-pressure oil pipe nut (3) is connected with the cover sealing ring (8) in a sealing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322484537.7U CN221032898U (en) | 2023-09-13 | 2023-09-13 | Sealing structure of high-pressure oil pipe of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322484537.7U CN221032898U (en) | 2023-09-13 | 2023-09-13 | Sealing structure of high-pressure oil pipe of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221032898U true CN221032898U (en) | 2024-05-28 |
Family
ID=91139699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322484537.7U Active CN221032898U (en) | 2023-09-13 | 2023-09-13 | Sealing structure of high-pressure oil pipe of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221032898U (en) |
-
2023
- 2023-09-13 CN CN202322484537.7U patent/CN221032898U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN221032898U (en) | Sealing structure of high-pressure oil pipe of engine | |
| CN2826124Y (en) | Pipeline leakage blocking device | |
| CN211738394U (en) | High-pressure rubber pipe plug mechanism | |
| CN210920475U (en) | Double-layer protective high-pressure oil pipe capable of steering | |
| CN210118575U (en) | Telescopic device with self-compensation function for conveying pipeline | |
| CN206656049U (en) | With leakage failure automatic detection formula joint | |
| CN205298771U (en) | Pneumatic valve actuator protector | |
| CN221074721U (en) | Leak protection oil's booster compressor maze oil blanket | |
| CN219413967U (en) | A outage operation device for gas pipeline | |
| CN220727208U (en) | Combined check valve for hydrogenation station | |
| CN211081988U (en) | Elastic sealing device for sealing steam of steam seal before high pressure of steam turbine | |
| CN205605412U (en) | Intermediate draw bar sealing device for reciprocating pump | |
| CN214578380U (en) | Zero-leakage bearing seat sealing sleeve set | |
| CN211667129U (en) | High-speed shafting with combined sealing structure in narrow space | |
| CN216241046U (en) | Ball valve sealing operation water source pipeline structure | |
| CN219035620U (en) | Ball valve with good sealing effect | |
| CN217784495U (en) | Hydraulic flange rubber pipe connecting device capable of preventing oil leakage | |
| CN220435735U (en) | Super-high pressure explosion-proof structure of joint | |
| CN219654748U (en) | Protective cover for coupling of turbine transmission compressor | |
| CN220060899U (en) | Coupling assembling and pneumatic cylinder oil supply pipeline | |
| CN214119140U (en) | Valve online maintenance structure | |
| CN211549604U (en) | Gas-liquid sealing joint slag discharge drill rod | |
| CN212718547U (en) | Self-repairing arc mouth TCR joint | |
| CN219176280U (en) | On-site immersion drilling nylon connecting device | |
| CN211344310U (en) | Double-layer protection type high-pressure oil pipe with two ends incapable of being high |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |