CN219257689U - Unmanned aerial vehicle high reliability oil transportation system - Google Patents
Unmanned aerial vehicle high reliability oil transportation system Download PDFInfo
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- CN219257689U CN219257689U CN202223577722.2U CN202223577722U CN219257689U CN 219257689 U CN219257689 U CN 219257689U CN 202223577722 U CN202223577722 U CN 202223577722U CN 219257689 U CN219257689 U CN 219257689U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
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Abstract
The utility model discloses an unmanned aerial vehicle high-reliability oil transportation system, which relates to the technical field of unmanned aerial vehicle subsystems and comprises the following components: a fuel consumption tank; the main oil delivery assembly comprises at least two ejector pumps, and the ejector pumps suck fuel oil from the oil delivery box and convey the fuel oil to the oil consumption tank; the fuel oil controller is connected with the oil delivery assembly; the onboard power supply is connected with the main oil conveying component; the oil transportation system can solve the problems of low reliability and high safety risk of the oil transportation system.
Description
Technical Field
The utility model belongs to the technical field of unmanned aerial vehicle subsystems, and particularly relates to an unmanned aerial vehicle high-reliability oil transportation system.
Background
The unmanned aerial vehicle with long endurance is a major military equipment project which is urgently needed to develop in China, and the oil transportation system with high reliability is an important system for realizing long endurance. At present, the oil delivery system adopts a single-channel injection pump oil delivery mode.
The problems of the existing oil transportation system for long voyage are as follows: the oil delivery of the oil delivery tank is realized by adopting a single oil delivery channel, the reliability is not high, common faults such as blockage in the injection pump or falling of an inlet and an outlet can lead to failure of the oil delivery channel, the oil delivery system can not work normally, and the available oil quantity of the unmanned aerial vehicle is further reduced. On the other hand, the safety of the scheme of the existing oil transportation system is seriously dependent on external factors such as control of airborne equipment, power supply of an onboard power supply and the like, and a large safety risk exists.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a high-reliability oil conveying system of an unmanned aerial vehicle, which can solve the problems of low reliability and high safety risk of the oil conveying system.
In order to achieve the above object, the present utility model provides a high-reliability oil delivery system for an unmanned aerial vehicle, comprising:
a fuel consumption tank;
the oil delivery boxes are connected with the oil consumption box through a main oil delivery assembly, the main oil delivery assembly comprises at least two ejector pumps, and the ejector pumps suck fuel oil from the oil delivery boxes and convey the fuel oil to the oil consumption box;
the fuel oil controller is connected with the oil delivery assembly;
and the airborne power supply is connected with the main oil conveying component.
Optionally, the main oil delivery assembly includes first oil delivery pump and second oil delivery pump that is connected with the fuel controller, first oil delivery pump's one end with the one end of second oil delivery pump with consume the oil tank and be connected, first oil delivery pump's the other end with the other end of second oil delivery pump is connected with first pipeline altogether, first pipeline is used for with every oil delivery case is connected respectively.
Optionally, the oil delivery tank comprises a first oil delivery tank and a second oil delivery tank, the first pipeline is connected with the first oil delivery tank through a second pipeline, the first pipeline is connected with the second oil delivery tank through a third pipeline, and the second pipeline and the third pipeline are respectively provided with a first oil delivery valve and a second oil delivery valve which are connected with the fuel controller.
Optionally, the outlet end of the first oil delivery valve is provided with a first ejector pump and a second ejector pump, and the first ejector pump and the second ejector pump are arranged in the first oil delivery tank.
Optionally, the outlet end of the second oil delivery valve is provided with a third ejector pump and a fourth ejector pump, and the third ejector pump and the fourth ejector pump are arranged in the second oil delivery tank.
Optionally, a gravity oil delivery assembly is arranged between the oil consumption tank and the oil delivery tank, the gravity oil delivery assembly comprises a float valve, and when the oil consumption tank is lower than the set liquid level of the float valve, the fuel of the oil delivery tank enters the bottom of the oil consumption tank.
Optionally, the gravity oil delivery assembly further comprises a fourth pipeline and a fifth pipeline, the bottom of the first oil delivery tank is connected with the inlet of the first one-way valve through the fourth pipeline, and the outlet of the first one-way valve is connected with the inlet of the gravity oil delivery valve through the fifth pipeline.
Optionally, the gravity oil delivery assembly further comprises a sixth pipeline and a seventh pipeline, the bottom of the second oil delivery tank is connected with the inlet of the second one-way valve through the sixth pipeline, and the outlet of the second one-way valve is connected with the inlet of the gravity oil delivery valve through the seventh pipeline.
Optionally, the outlet of the gravity oil delivery valve is connected with the bottom of the oil consumption tank through an eighth pipeline, and the float valve is connected with the gravity oil delivery valve through a connecting rod mechanism.
The utility model provides a high-reliability oil transportation system of an unmanned aerial vehicle, which has the beneficial effects that:
1. in the oil transportation system, each oil transportation tank is provided with at least two independent automatic oil transportation sub-channels towards the oil consumption tank, so that the oil transportation failure risk of a traditional single channel is effectively reduced, and the safety of the unmanned aerial vehicle in long voyage is improved;
2. in the oil transportation system, the gravity oil transportation assembly is independently arranged outside the structure of the main oil transportation assembly, and is independent of on-board airborne equipment, so that the flight safety of the unmanned aerial vehicle is effectively improved;
3. the design of the arrangement position of the ejector pump of the oil conveying system in the oil conveying box greatly reduces the unavailable oil quantity of the oil conveying box and has a promotion effect on the aviation lift of the unmanned aerial vehicle.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.
Fig. 1 shows a schematic structural diagram of a high-reliability oil delivery system of a unmanned aerial vehicle according to an embodiment of the present utility model.
Fig. 2 shows a schematic diagram of power supply and control of a first oil transfer pump, a second oil transfer pump, a first oil transfer valve and a second oil transfer valve according to an embodiment of the present utility model.
Fig. 3 shows a control schematic of a float valve and gravity feed oil valve according to an embodiment of the utility model.
Fig. 4 shows a schematic structural diagram of a high reliability oil delivery system of a unmanned aerial vehicle according to another embodiment of the present utility model.
Reference numerals illustrate:
1. a fuel consumption tank; 2. a fuel controller; 3. a first oil transfer pump; 4. a second oil transfer pump; 5. a first pipeline; 6. a first oil delivery tank; 7. a second oil delivery tank; 8. a second pipeline; 9. a third pipeline; 10. a first oil delivery valve; 11. a second oil delivery valve; 12. a first ejector pump; 13. a second ejector pump; 14. a third ejector pump; 15. a fourth ejector pump; 16. a float valve; 17. a fourth pipeline; 18. a fifth pipeline; 19. a first one-way valve; 20. a gravity oil delivery valve; 21. a sixth pipeline; 22. a seventh pipeline; 23. a second one-way valve; 24. an eighth pipeline; 25. an onboard power supply; 26. and a link mechanism.
Detailed Description
Preferred embodiments of the present utility model will be described in more detail below. While the preferred embodiments of the present utility model are described below, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
The utility model provides an unmanned aerial vehicle high-reliability oil transportation system, which comprises:
a fuel consumption tank;
the main oil delivery assembly comprises at least two ejector pumps, and the ejector pumps suck fuel oil from the oil delivery box and convey the fuel oil to the oil consumption tank;
the fuel oil controller is connected with the oil delivery assembly;
and the onboard power supply is connected with the main oil conveying component.
Specifically, in the oil delivery system, the oil consumption tank is used for directly supplying oil to the engine, and the fuel in the oil delivery tank needs to be delivered into the oil consumption tank; draw forth the fuel as flowing in will consuming the oil tank through the ejector pump in the main oil transportation subassembly, under the effect of flowing, ejector pump can inhale the fuel from the oil tank to in the oil tank is consumed in carrying, guarantees to consume the oil tank in fuel sufficient, two at least ejector pumps in every oil tank moreover, and every ejector pump can form independent oil pipeline, has effectively reduced the defeated risk of oil transportation of traditional single channel, has improved the security of unmanned aerial vehicle long voyage.
Optionally, the main oil delivery assembly includes first oil delivery pump and second oil delivery pump that are connected with the fuel controller, and the one end and the oil consumption tank of second oil delivery pump are connected, and the other end of second oil delivery pump of first oil delivery pump are connected with first pipeline altogether, and first pipeline is used for being connected respectively with every oil delivery case.
Specifically, the fuel controller in the main fuel delivery assembly can control the running states of the first fuel delivery pump and the second fuel delivery pump, and when fuel in the first fuel delivery tank and the second fuel delivery tank is required to be delivered into the fuel consumption tank, the first fuel delivery pump or the second fuel delivery pump is correspondingly started, so that the fuel in the fuel consumption tank can be introduced into the corresponding fuel delivery tank to serve as the flow of the injection pump.
Optionally, the oil delivery box comprises a first oil delivery box and a second oil delivery box, the first pipeline is connected with the first oil delivery box through a second pipeline, the first pipeline is connected with the second oil delivery box through a third pipeline, and the second pipeline and the third pipeline are respectively provided with a first oil delivery valve and a second oil delivery valve which are connected with the fuel controller.
In one embodiment, when the second pipeline is connected with the first ejector pump and the second ejector pump, each ejector pump is provided with an automatic oil delivery valve, so that one or two of the first oil delivery pump and the second oil delivery pump are opened at will and one or two of the second oil delivery pump are opened at the same time, and after one or two of the first oil delivery valves are opened at will and each of the automatic oil delivery valves is opened at the same time, the oil delivery operation from the first oil delivery tank to the oil consumption tank can be automatically completed, and thus, the first oil delivery tank has two independent oil delivery pipelines to the oil consumption tank, the oil delivery failure risk of a traditional single channel is effectively reduced, and the safety of the unmanned aerial vehicle during long voyage is improved.
Optionally, the outlet end of the first oil delivery valve is provided with a first ejector pump and a second ejector pump, and the first ejector pump and the second ejector pump are arranged in the first oil delivery tank.
Optionally, the outlet end of the second oil delivery valve is provided with a third ejector pump and a fourth ejector pump, and the third ejector pump and the fourth ejector pump are arranged in the second oil delivery tank.
Specifically, under the action of the moving flow, two ejector pumps in the same oil delivery tank respectively and simultaneously suck fuel oil from the oil delivery tank, and the two ejector pumps are converged from an outlet pipeline and are jointly conveyed to the oil consumption tank; the first ejector pump and the second ejector pump are both arranged in the first oil conveying tank and are respectively distributed near the front and rear wall plates of the first oil conveying tank, and the third ejector pump and the fourth ejector pump are both arranged in the second oil conveying tank and are respectively distributed near the front and rear wall plates of the second oil conveying tank; the first fuel delivery valve and the second fuel delivery valve are powered by an on-board power supply, and the on-off control is executed by a fuel controller.
Optionally, a gravity oil delivery assembly is arranged between the oil consumption tank and the oil delivery tank, the gravity oil delivery assembly comprises a float valve, and when the oil consumption tank is lower than the set liquid level of the float valve, the fuel of the oil delivery tank enters the bottom of the oil consumption tank.
Specifically, the gravity oil delivery assembly does not depend on-board equipment, when the liquid level of the oil consumption tank is lower than that of the float valve, the gravity oil delivery valve is directly triggered to be in an open state from a closed state in a purely mechanical mode, and therefore the fuel in the fuel tanks can consume the oil to carry out gravity oil delivery.
In one embodiment, the float valve is set to a level that is not less than 40% of the full fuel in the fuel-consuming tank.
Optionally, the gravity oil delivery assembly further comprises a fourth pipeline and a fifth pipeline, the bottom of the first oil delivery tank is connected with the inlet of the first one-way valve through the fourth pipeline, and the outlet of the first one-way valve is connected with the inlet of the gravity oil delivery valve through the fifth pipeline.
Optionally, the gravity oil delivery assembly further comprises a sixth pipeline and a seventh pipeline, the bottom of the second oil delivery tank is connected with the inlet of the second one-way valve through the sixth pipeline, and the outlet of the second one-way valve is connected with the inlet of the gravity oil delivery valve through the seventh pipeline.
Specifically, when the first oil delivery tank and the second oil delivery tank carry out gravity oil delivery to the oil consumption tank, the first check valve and the second check valve ensure that fuel cannot reversely flow back, and the damage of the fuel in the oil consumption tank is avoided; the pipe diameters of the fourth pipeline, the fifth pipeline, the sixth pipeline and the seventh pipeline are the same, and the requirement of the gravity oil transportation rate can be met; the pipe diameter of the eighth pipeline is thicker than that of the sixth pipeline and the seventh pipeline, and the requirement of the gravity oil transportation rate can be met.
Optionally, an outlet of the gravity oil delivery valve is connected with the bottom of the oil consumption tank through an eighth pipeline, and the float valve is connected with the gravity oil delivery valve through a link mechanism.
Specifically, the gravity oil delivery valve is in a normally closed state, when the liquid level of the oil consumption tank is lower than that of the float valve, the float valve can start the gravity oil delivery valve through the link mechanism, and a mode of pushing the link rod or sending an electronic signal can be adopted.
Examples
As shown in fig. 1 to 4, the present utility model provides a high-reliability oil delivery system for an unmanned aerial vehicle, including:
a fuel consumption tank 1;
at least two oil delivery boxes, the oil delivery boxes are connected with the oil consumption tank 1 through a main oil delivery assembly, the main oil delivery assembly comprises at least two ejector pumps, and the ejector pumps suck fuel oil from the oil delivery boxes and convey the fuel oil to the oil consumption tank 1;
the fuel controller 2 is connected with the oil delivery assembly;
and the onboard power supply 25 is connected with the main oil delivery assembly.
In this embodiment, the main fuel delivery assembly includes a first fuel delivery pump 3 and a second fuel delivery pump 4 connected to the fuel controller, one end of the first fuel delivery pump 3 and one end of the second fuel delivery pump 4 are connected to the fuel consumption tank 1, the other end of the first fuel delivery pump 3 and the other end of the second fuel delivery pump 4 are connected together to a first pipeline 5, and the first pipeline 5 is used for being connected to each fuel delivery tank respectively.
In this embodiment, the fuel delivery tank includes a first fuel delivery tank 6 and a second fuel delivery tank 7, the first pipeline 5 is connected with the first fuel delivery tank 6 through a second pipeline 8, the first pipeline 5 is connected with the second fuel delivery tank 7 through a third pipeline 9, and a first fuel delivery valve 10 and a second fuel delivery valve 11 connected with the fuel controller 2 are respectively arranged on the second pipeline 8 and the third pipeline 9.
In this embodiment, the outlet end of the first oil delivery valve 10 is provided with a first ejector pump 12 and a second ejector pump 13, and the first ejector pump 12 and the second ejector pump 13 are disposed in the first oil delivery tank 6.
In this embodiment, the outlet end of the second oil delivery valve 11 is provided with a third ejector pump 14 and a fourth ejector pump 15, and the third ejector pump 14 and the fourth ejector pump 15 are disposed in the second oil delivery tank 7.
In this embodiment, a gravity oil delivery assembly is provided between the fuel consuming tank 1 and the oil delivery tank, the gravity oil delivery assembly comprising a float valve 16, and fuel from the fuel consuming tank enters the bottom of the fuel consuming tank 1 when the fuel consuming tank 1 is below the set level of the float valve 16.
In this embodiment, the gravity oil delivery assembly further includes a fourth pipeline 17 and a fifth pipeline 18, the bottom of the first oil delivery tank 6 is connected to the inlet of the first check valve 19 through the fourth pipeline 17, and the outlet of the first check valve 19 is connected to the inlet of the gravity oil delivery valve 20 through the fifth pipeline 18.
In this embodiment, the gravity oil delivery assembly further includes a sixth pipeline 21 and a seventh pipeline 22, the bottom of the second oil delivery tank 7 is connected to the inlet of the second check valve 23 through the sixth pipeline 21, and the outlet of the second check valve 23 is connected to the inlet of the gravity oil delivery valve 20 through the seventh pipeline 22.
In the present embodiment, the outlet of the gravity feed valve 20 is connected to the bottom of the fuel tank 1 through an eighth pipe 24, and the float valve 16 is connected to the gravity feed valve 20 through a link mechanism 26.
In sum, in the oil transportation system, the inner diameter of the first pipeline 5 is 8mm, and the inner diameters of the second pipeline 8 and the third pipeline 9 are 6mm; the inner diameters of the fourth pipeline 17, the fifth pipeline 18, the sixth pipeline 21 and the seventh pipeline 22 are all 30mm, and the inner diameter of the eighth pipeline 24 is 40mm. The float valve 16 is arranged in the waste tank 1 at a level of 40% of the full level of waste tank.
After all parts are assembled, oil is conveyed from the first oil conveying tank 6 and the second oil conveying tank 7 to the oil consumption tank 1, so that two oil conveying channels are formed, wherein the first oil conveying channel is an automatic oil conveying channel, and the second oil conveying channel is a gravity oil conveying channel. When the automatic oil conveying channel fails, after the liquid level of the oil consumption tank 1 is reduced to the set liquid level, the gravity oil conveying channel is started, and oil conveying and operation of the unmanned aerial vehicle are continuously guaranteed.
The primary fuel delivery assembly of the fuel consumption tank 1 is fed by the first fuel delivery tank 6 through the first pipeline 5 after being pressurized by the first fuel delivery pump 3 and the second fuel delivery pump 4, flows to the first fuel delivery valve 10, and then enters the first ejector pump 12 and the second ejector pump 13 respectively to serve as the moving flow of the respective ejector pumps, so that the fuel in the first fuel delivery tank 6 is respectively sucked and then is jointly fed to the fuel consumption tank 1.
After the first oil transfer pump 3, the second oil transfer pump 4 and the first oil transfer valve 10 are opened, the oil transfer from the first oil transfer tank 6 to the oil consuming tank 1 is automatically completed.
The starting point of the automatic oil delivery channel of the second oil delivery tank 7 to the oil consumption tank 1 is that after the fuel is pressurized by the first oil delivery pump 3 and the second oil delivery pump 4, the fuel flows to the second oil delivery valve 11 through the first pipeline 5 and then enters the third ejector pump 14 and the fourth ejector pump 15 respectively to be used as the moving flow of the respective ejector pumps, so that the fuel sucked into the second oil delivery tank 7 respectively is delivered to the oil consumption tank 1 together.
After the first oil transfer pump 3, the second oil transfer pump 4 and the second oil transfer valve 11 are opened, the oil transfer from the second oil transfer tank 7 to the oil consuming tank 1 is automatically completed.
When the fuel consumption of the fuel tank 1 is lower than 40% full, i.e. the fuel level is lower than the arrangement height of the float valve 16, the float in the float valve 16 will displace and drive the linkage 26 to move, changing the gravity feed valve 20 from closed to open. At this time, the gravity oil delivery passages of the first oil delivery tank 6 and the second oil delivery tank 7 to the oil consuming tank 1 will be opened.
The first oil delivery tank 6 is connected with the gravity oil delivery channel of the oil consumption tank 1, the starting point is that the fuel oil of the first oil delivery tank 6 enters the fourth pipeline 17, then sequentially passes through the first check valve 19, the fifth pipeline 18, the gravity oil delivery valve 20 and the eighth pipeline 24, and finally enters the oil consumption tank 1.
The gravity oil delivery channel of the second oil delivery tank 7 to the oil consumption tank 1 starts from the point that the fuel oil of the second oil delivery tank 7 enters the sixth pipeline 21, then sequentially passes through the second check valve 23, the seventh pipeline 22, the gravity oil delivery valve 20 and the eighth pipeline 24, and finally enters the oil consumption tank 1.
The gravity oil transportation channel is opened, and independent on an onboard power supply 25 and onboard equipment of the unmanned aerial vehicle are opened, so that independent backup is realized with the automatic oil transportation channel. If the automatic oil delivery channel fails due to failure, the gravity oil delivery channel still can ensure that the fuel of the first oil delivery tank 6 and the second oil delivery tank 7 is continuously delivered to the oil consumption tank 1 after the fuel of the first oil delivery tank 6 and the second oil delivery tank 7 cannot be delivered to the oil consumption tank 1.
The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (9)
1. High reliability oil transportation system of unmanned aerial vehicle, characterized by, include:
a fuel consumption tank;
the oil delivery boxes are connected with the oil consumption box through a main oil delivery assembly, the main oil delivery assembly comprises at least two ejector pumps, and the ejector pumps suck fuel oil from the oil delivery boxes and convey the fuel oil to the oil consumption box;
the fuel oil controller is connected with the oil delivery assembly;
and the airborne power supply is connected with the main oil conveying component.
2. The unmanned aerial vehicle high reliability oil delivery system of claim 1, wherein the main oil delivery assembly comprises a first oil delivery pump and a second oil delivery pump connected with the fuel controller, one end of the first oil delivery pump and one end of the second oil delivery pump are connected with the oil consumption tank, the other end of the first oil delivery pump and the other end of the second oil delivery pump are connected with a first pipeline in a common body, and the first pipeline is used for being connected with each oil delivery tank respectively.
3. The unmanned aerial vehicle high reliability oil delivery system of claim 2, wherein the oil delivery tank comprises a first oil delivery tank and a second oil delivery tank, the first pipeline is connected with the first oil delivery tank through a second pipeline, the first pipeline is connected with the second oil delivery tank through a third pipeline, and the second pipeline and the third pipeline are respectively provided with a first oil delivery valve and a second oil delivery valve which are connected with the fuel controller.
4. The unmanned aerial vehicle high reliability oil delivery system of claim 3, wherein the outlet end of the first oil delivery valve is provided with a first ejector pump and a second ejector pump, and the first ejector pump and the second ejector pump are disposed in the first oil delivery tank.
5. The unmanned aerial vehicle high reliability oil delivery system of claim 3, wherein the outlet end of the second oil delivery valve is provided with a third ejector pump and a fourth ejector pump, and the third ejector pump and the fourth ejector pump are disposed in the second oil delivery tank.
6. The unmanned aerial vehicle high reliability oil delivery system of claim 3, wherein a gravity oil delivery assembly is provided between the oil-consuming tank and the oil delivery tank, the gravity oil delivery assembly comprising a float valve, and wherein fuel from the oil delivery tank enters the bottom of the oil-consuming tank when the oil-consuming tank is below a set level of the float valve.
7. The unmanned aerial vehicle high reliability oil delivery system of claim 6, wherein the gravity oil delivery assembly further comprises a fourth pipeline and a fifth pipeline, the bottom of the first oil delivery tank is connected with the inlet of the first check valve through the fourth pipeline, and the outlet of the first check valve is connected with the inlet of the gravity oil delivery valve through the fifth pipeline.
8. The unmanned aerial vehicle high reliability oil delivery system of claim 7, wherein the gravity oil delivery assembly further comprises a sixth conduit and a seventh conduit, the bottom of the second oil delivery tank is connected to the inlet of a second one-way valve through the sixth conduit, and the outlet of the second one-way valve is connected to the inlet of the gravity oil delivery valve through the seventh conduit.
9. The unmanned aerial vehicle high reliability oil delivery system of claim 8, wherein the outlet of the gravity oil delivery valve is connected to the bottom of the oil-consuming tank via an eighth line, and the float valve is connected to the gravity oil delivery valve via a linkage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223577722.2U CN219257689U (en) | 2022-12-30 | 2022-12-30 | Unmanned aerial vehicle high reliability oil transportation system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223577722.2U CN219257689U (en) | 2022-12-30 | 2022-12-30 | Unmanned aerial vehicle high reliability oil transportation system |
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| CN219257689U true CN219257689U (en) | 2023-06-27 |
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| CN202223577722.2U Active CN219257689U (en) | 2022-12-30 | 2022-12-30 | Unmanned aerial vehicle high reliability oil transportation system |
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- 2022-12-30 CN CN202223577722.2U patent/CN219257689U/en active Active
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