Unmanned aerial vehicle oil separator

Abstract

The utility model belongs to the technical field of aircrafts, and particularly provides an unmanned aerial vehicle oil distributor which is connected with a plurality of oil tanks and comprises an oil distribution tank and a plurality of plugs, a plurality of oil channels are formed in the oil distribution tank, two or more of the oil channels are communicated or not communicated, one or more oil ports and / or openings are formed in the oil channels, and the plugs are connected with the oil distribution tank. When the port, the oil port or the opening of the oil duct needs to be plugged, the end cap is adopted for plugging, the oil duct is connected with the oil tank, the problem that oil supply is interrupted when an oil pipe of a soft oil tank of an existing unmanned aerial vehicle fuel system is bent is solved, connection of the soft oil pipe is omitted, and the problem that the soft oil pipe is bent is fundamentally solved.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft technology, specifically relating to an unmanned aerial vehicle (UAV) fuel separator. Background Technology

[0002] Currently, both domestically and internationally, unmanned aerial vehicles (UAVs) are experiencing rapid development. Their types are becoming increasingly diverse, and their applications are no longer limited to military, civilian, communications, and scientific research fields, but are permeating practical applications across various industries. Unmanned target drones (hereinafter referred to as "UAVs"), as simulated aerial maneuvering targets, play a crucial role in weapons development, testing, and troop training. The fuel system of a UAV, as an integral part of the overall system, provides power and is a key indicator of flight time. Compared to conventional UAV fuel tanks, flexible fuel tanks offer significant advantages such as lightness, ease of manufacturing, low cost, simple structure, and space saving. Therefore, most fuel-powered UAVs on the market utilize inexpensive flexible fuel tanks as part of their fuel system.

[0003] However, low-cost flexible fuel tanks, unlike structural fuel tanks with metal fuel lines, can only accommodate softer fuel lines. The risk of hose kinking exists during pre-refueling vacuuming and in-flight fuel consumption, potentially leading to engine shutdown due to fuel supply interruption. Designing a fuel distributor that can solve the problem of hose kinking has become an urgent issue for the fuel system. Utility Model Content

[0004] The present invention provides a fuel distributor for unmanned aerial vehicles (UAVs) to overcome the problem of fuel supply interruption caused by bending of the fuel line in the soft fuel tank of the UAV fuel system in the prior art.

[0005] Therefore, this utility model provides a drone fuel distributor. The drone fuel distributor connects to multiple fuel tanks, including a fuel tank and multiple plugs. Multiple fuel channels are opened in the fuel tank. Two or more of the multiple fuel channels are connected or disconnected. One or more fuel ports and / or openings are opened on the fuel channels. When the ports, fuel ports or openings of the fuel channels need to be blocked, they are all blocked with plugs. The fuel channels are connected to the fuel tanks.

[0006] Preferably, the oil distribution tank has multiple mounting holes.

[0007] Preferably, the multiple oil channels are oil channel one, oil channel two, oil channel three, and oil channel four. Oil channel one and oil channel two are not connected, while oil channel two and oil channel three are connected through oil channel four. One end of oil channel one has an oil port one, and the other end of oil channel one has an oil port two and an oil port three. One end of oil channel two has an oil port four and an opening one, and the other end of oil channel two has an oil port five and an oil port six. One end of oil channel three has an oil port seven, an opening two, and an opening three. When the ports in oil channel one, oil channel two, oil channel three, and oil channel four, as well as openings one, two, and three, need to be blocked, they are all blocked by plugs.

[0008] Preferably, the plurality of fuel tanks includes fuel tank one, fuel tank two, and fuel tank three, and the UAV fuel distributor adopts a fuel circuit connection method in either a non-bleed air pressurization state or a bleed air pressurization state.

[0009] Preferably, the oil separator of the UAV adopts an oil circuit connection method in a non-bleed air pressurization state as follows: the port at one end of oil passage 2, the port at one end of oil passage 3, the port at one end of oil passage 3, the port at one end of oil passage 2, and the port at one end of oil passage 3 are all sealed with plugs; oil port 4 is connected to the oil outlet of oil tank 1; oil port 5 is connected to the oil outlet of oil tank 2; oil port 6 is connected to the oil outlet of oil tank 3; and oil port 7 is the oil supply port.

[0010] Preferably, the oil circuit connection method of the UAV oil distributor in the bleed air pressurization state is as follows: the port at one end of oil channel one, the port at one end of oil channel two, opening one, oil port six, the port at one end of oil channel three, oil port seven, opening two and opening three are all sealed with plugs, oil port two is connected to the oil outlet of oil tank two, oil port three is connected to the oil outlet of oil tank three, oil port one is connected to the oil inlet of oil tank one, the oil outlet of oil tank one is connected to oil port four, and oil port five is the oil supply port.

[0011] Preferably, oil passage one, oil passage two, oil passage three and oil passage four are all straight oil passages.

[0012] Preferably, the oil distribution tank is rectangular in shape, with both the left and right sides of the rectangular prism protruding outwards, and the mounting holes are located at the protrusions.

[0013] Preferably, all of the oil ports 1, 2, 3, 4, 1, 5, 6, 7, 2, 3 and the mounting hole are threaded holes.

[0014] Preferably, the oil passage has an oil port eight.

[0015] The beneficial effects of this utility model are:

[0016] 1. The drone fuel distributor provided by this utility model is used to connect to the fuel tank. The fuel distributor is directly connected to the fuel tank, eliminating the need for a soft fuel pipe connection and fundamentally solving the problem of soft fuel pipe bending.

[0017] 2. The drone oil separator provided by this utility model has a simple structure, which facilitates changing the oil flow direction through the plug and facilitating oil supply to the drone engine through the oil port.

[0018] 3. The drone oil separator provided by this utility model adopts an oil circuit connection method in either non-bleed air pressurization state or bleed air pressurization state, which can be adapted to both low-altitude non-bleed air pressurization and high-altitude bleed air pressurization conditions, and has good practicality and applicability. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of the drone oil separator.

[0021] Explanation of reference numerals in the attached diagram: 1. Oil tank; 2. Plug; 3. Oil passage; 4. Mounting hole; 5. Oil port; 6. Opening;

[0022] 3.1 Oil passage one; 3.2 Oil passage two; 3.3 Oil passage three; 3.4 Oil passage four;

[0023] 5.1 Oil port one; 5.2 Oil port two; 5.3 Oil port three; 5.4 Oil port four; 5.5 Oil port five; 5.6 Oil port six; 5.7 Oil port seven; 5.8 Oil port eight;

[0024] 6.1 Opening 1; 6.2 Opening 2; 6.3 Opening 3. Detailed Implementation

[0025] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0026] Example 1:

[0027] A drone fuel distributor is provided, which is connected to multiple fuel tanks. The distributor includes a fuel tank 1 and multiple plugs 2. Multiple fuel channels 3 are provided in the fuel tank 1. Two or more of the fuel channels 3 are connected or disconnected. One or more fuel ports 5 and / or openings 6 are provided on the fuel channels 3. When the ports, fuel ports 5 or openings 6 of the fuel channels 3 need to be blocked, they are all blocked by plugs 2. The fuel channels 3 are connected to the fuel tanks.

[0028] Specifically, plug 2 is used to change the flow direction of oil passage 3, oil passage 3 is used as the fuel flow path for the drone, and multiple oil ports are used to connect to the fuel tank. Through the distribution tank, the oil in different fuel tanks can flow to the drone engine as needed, and the fuel is distributed to the drone engine as needed.

[0029] When the drone fuel distributor is not in the bleed air pressurization state, the fuel in multiple fuel tanks enters the fuel distributor tank 1 through multiple fuel ports 5, and after passing through the fuel passage 3, it flows out from the target fuel port 5 and enters the drone engine, forming a fuel system in which multiple fuel tanks jointly supply fuel to the drone.

[0030] When the drone's fuel distributor is in bleed air pressurization mode, fuel from multiple fuel tanks enters the fuel distributor 1 through multiple fuel ports 5, flows through the fuel passage 3, and then flows into the same target fuel tank through the same fuel port 5. After passing through the target fuel tank, it flows back into the fuel distributor 1, and finally flows out through another fuel port 5 into the drone engine. This forms a continuous supply of fuel from multiple fuel tanks to the target fuel tank, keeping the target fuel tank full at all times, in order to cope with the situation where the drone's engine oil pressure decreases at an altitude of 10,000 meters.

[0031] The drone fuel distributor is installed on the internal structural frame of the drone. It connects to the fuel tank (flexible fuel tank) and is integrated with the frame. The front and rear flexible fuel tanks are connected via the fuel distributor, forming the drone's fuel supply system. The direct connection of the fuel distributor to the fuel tank eliminates the need for a flexible fuel line, fundamentally solving the problem of flexible fuel line bending. It is suitable for both low-altitude non-bleed air pressurization and high-altitude bleed air pressurization conditions.

[0032] Example 2:

[0033] Based on Embodiment 1, a drone fuel distributor is provided, wherein the fuel tank 1 has multiple mounting holes 4.

[0034] Specifically, mounting hole 4 facilitates the secure installation of the drone oil separator onto the internal structural frame of the drone body.

[0035] Example 3:

[0036] Based on Embodiment 2, a drone fuel distributor is provided, wherein the multiple fuel channels 3 are fuel channel 1 3.1, fuel channel 2 3.2, fuel channel 3 3.3, and fuel channel 4 3.4. Fuel channel 1 3.1 and fuel channel 2 3.2 are not connected, while fuel channel 2 3.2 and fuel channel 3 3.3 are connected through fuel channel 4 3.4. One end of fuel channel 1 3.1 is provided with fuel port 5.1, and the other end of fuel channel 1 3.1 is provided with fuel port 5.2 and fuel port 5.3. One end of fuel channel 2 3.2 is provided with... Oil port 4 5.4 and opening 1 6.1 are provided at the other end of oil passage 2 3.2. Oil port 5.5 and oil port 6 5.6 are provided at the other end of oil passage 3 3.3. Oil port 7 5.7, opening 2 6.2 and opening 3 6.3 are provided at one end of oil passage 3.3. When the ports in oil passage 1 3.1, oil passage 2 3.2, oil passage 3 3.3 and oil passage 4 3.4, opening 1 6.1, opening 2 6.2 and opening 3 6.3 need to be blocked, they are all blocked by plug 2.

[0037] Specifically, the drone fuel separator has a simple structure, completely solving the problem of kinking in the soft fuel tank, and the drone fuel separator can be adapted to both low-altitude non-bleed air pressurization and high-altitude bleed air lamination conditions.

[0038] Example 4:

[0039] Based on Embodiment 3, a drone fuel distributor is provided, wherein the plurality of fuel tanks include fuel tank one, fuel tank two and fuel tank three, and the drone fuel distributor adopts a fuel circuit connection method in a non-bleed air pressurization state or a fuel circuit connection method in a bleed air pressurization state.

[0040] Specifically, the oil circuit connection method for non-bleed air pressurization is used to connect oil tank 1, oil tank 2 and oil tank 3, which is better adapted to low-altitude non-bleed air pressurization conditions; the oil circuit connection method for bleed air pressurization is used to connect oil tank 1, oil tank 2 and oil tank 3, which is better adapted to high-altitude bleed air pressurization.

[0041] Example 5:

[0042] Based on Example 4, a drone fuel distributor is provided. The drone fuel distributor adopts a non-bleed air pressurization state fuel circuit connection method as follows: the port at one end of fuel channel 2 3.2, the port at one end of fuel channel 3 3.3, the port at one end of fuel channel 2 6.2 and the port at one end of fuel channel 3 6.3 are all sealed with plugs 2; the port at one end of fuel channel 4 5.4 is connected to the outlet of fuel tank 1; the port at one end of fuel channel 5.5 is connected to the outlet of fuel tank 2; the port at one end of fuel channel 6 5.6 is connected to the outlet of fuel tank 3; and the port at one end of fuel channel 7 5.7 is the fuel supply port.

[0043] Specifically, fuel in fuel tank one enters fuel passage two (3.2) through port four (5.4), fuel in fuel tank two enters fuel passage two (3.2) through port five (5.5), fuel in fuel tank three enters fuel passage two (3.2) through port six (5.6), and fuel in fuel passage two (3.2) enters the UAV engine through fuel passage four (3.4) and port seven (5.7). This forms a fuel system in which fuel tank one, fuel tank two, and fuel tank three jointly supply fuel to the UAV. The system has a simple structure and is better suited for low-altitude non-bleed air pressurization conditions.

[0044] Example 5:

[0045] Based on Example 4, a drone fuel distributor is provided. The fuel distributor adopts an oil circuit connection method in a bleed-air pressurization state as follows: the port at one end of oil channel 1 3.1, the port at one end of oil channel 2 3.2, opening 1 6.1, oil port 6 5.6, the port at one end of oil channel 3 3.3, oil port 7 5.7, opening 2 6.2 and opening 3 6.3 are all sealed with plugs 2. Oil port 2 5.2 is connected to the oil outlet of oil tank 2, oil port 3 5.3 is connected to the oil outlet of oil tank 3, oil port 1 5.1 is connected to the oil inlet of oil tank 1, the oil outlet of oil tank 1 is connected to oil port 4 5.4, and oil port 5 5.5 is the oil supply port.

[0046] Specifically, fuel in fuel tank 2 enters fuel passage 3.1 through port 2 (5.2), fuel in fuel tank 3 enters fuel passage 3.1 through port 3 (5.3), fuel in fuel passage 3.1 enters fuel tank 1 through port 1 (5.1), fuel in fuel tank 1 enters fuel passage 2 (3.2) through port 4 (5.4), and then enters the UAV engine through port 5 (5.5). This creates a continuous supply of fuel from fuel tanks 2 and 3 to fuel tank 1, keeping fuel tank 1 full at all times to cope with the decrease in engine oil pressure when the UAV is at an altitude of 10,000 meters.

[0047] Example 6:

[0048] Based on Example 4, oil passage 1 3.1, oil passage 2 3.2, oil passage 3 3.3 and oil passage 4 3.4 are all straight oil passages.

[0049] Specifically, straight oil passages are simple and facilitate fuel flow.

[0050] Preferably, the oil distribution tank 1 is in the shape of a cuboid, with both the left and right sides of the cuboid protruding outwards, and the mounting hole 4 is located at the protrusion.

[0051] Specifically, the cuboid structure is simple, and the protrusions facilitate installation.

[0052] Preferably, oil port 1 (5.1), oil port 2 (5.2), oil port 3 (5.3), oil port 4 (5.4), opening 1 (6.1), oil port 5 (5.5), oil port 6 (5.6), oil port 7 (5.7), opening 2 (6.2), opening 3 (6.3), and mounting hole 4 are all threaded holes.

[0053] Specifically, the threaded hole facilitates threaded connection, the oil port and oil tank are directly connected through a double threaded adapter, and the mounting hole 4 is connected to the frame plate with screws, making installation and disassembly convenient.

[0054] Preferably, the plurality of plugs 2 are the same or different.

[0055] Specifically, when multiple oil ports that need to be sealed are the same, multiple identical plugs 2 are selected for sealing; when multiple oil ports that need to be sealed are different, different plugs 2 that match them are selected for sealing; the plugs 2 that match the actual shape and size of the sealing location are selected to meet the usage requirements, and the practicality and applicability are good.

[0056] Preferably, the oil passage 3.1 is provided with an oil port 5.8.

[0057] Specifically, other oil tanks can be connected through oil port 85.8 as needed. In embodiment 5, oil port 85.8 is sealed with plug 2.

[0058] In the description of this utility model, it should be understood that if terms such as "left" or "right" indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the drawings are only for illustrative purposes and should not be construed as limiting this utility model.

[0059] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.

Claims

1. A drone fuel distributor, wherein the drone fuel distributor is connected to multiple fuel tanks, characterized in that: It includes a sub-tank (1) and multiple plugs (2). Multiple oil passages (3) are opened in the sub-tank (1). Two or more of the multiple oil passages (3) are connected or not connected. One or more oil ports (5) and / or openings (6) are opened on the oil passages (3). When the ports, oil ports (5) or openings (6) of the oil passages (3) need to be blocked, plugs (2) are used to block them. The oil passages (3) are connected to the oil tank.

2. The drone fuel separator as described in claim 1, characterized in that: The oil distribution tank (1) has multiple mounting holes (4).

3. The UAV fuel separator as described in claim 2, characterized in that: The multiple oil channels (3) are oil channel one (3.1), oil channel two (3.2), oil channel three (3.3), and oil channel four (3.4). Oil channel one (3.1) and oil channel two (3.2) are not connected, while oil channel two (3.2) and oil channel three (3.3) are connected through oil channel four (3.4). One end of oil channel one (3.1) is provided with oil port one (5.1), and the other end of oil channel one (3.1) is provided with oil port two (5.2) and oil port three (5.3). One end of oil channel two (3.2) is provided with oil port four (5.4) and oil port three (5.3). At the other end of oil passage 1 (6.1), oil passage 2 (3.2) is provided with oil passage 5 (5.5) and oil passage 6 (5.6); at one end of oil passage 3 (3.3) are oil passage 7 (5.7), opening 2 (6.2) and opening 3 (6.3); when the ports in oil passage 1 (3.1), oil passage 2 (3.2), oil passage 3 (3.3) and oil passage 4 (3.4), opening 1 (6.1), opening 2 (6.2) and opening 3 (6.3) need to be blocked, they are all blocked by plug (2).

4. The UAV fuel separator as described in claim 3, characterized in that: The multiple fuel tanks include fuel tank one, fuel tank two, and fuel tank three. The UAV fuel distributor adopts either a non-bleed air pressurization state fuel circuit connection method or a bleed air pressurization state fuel circuit connection method.

5. The UAV fuel separator as described in claim 4, characterized in that: The oil separator of the UAV adopts an oil circuit connection method in a non-bleed air pressurization state as follows: the port at one end of oil channel two (3.2), the port at one end of oil channel three (3.3), the port at one end of oil channel two (6.2) and the port at one end of oil channel three (6.3) are all sealed with plugs (2), the oil port four (5.4) is connected to the oil outlet of oil tank one, the oil port five (5.5) is connected to the oil outlet of oil tank two, the oil port six (5.6) is connected to the oil outlet of oil tank three, and the oil port seven (5.7) is the oil supply port.

6. The drone fuel separator as described in claim 4, characterized in that: The oil separator of the UAV adopts the oil circuit connection method of bleed air pressurization state as follows: the port at one end of oil channel one (3.1), the port at one end of oil channel two (3.2), opening one (6.1), oil port six (5.6), the port at one end of oil channel three (3.3), oil port seven (5.7), opening two (6.2) and opening three (6.3) are all sealed with plugs (2), oil port two (5.2) is connected to the oil outlet of oil tank two, oil port three (5.3) is connected to the oil outlet of oil tank three, oil port one (5.1) is connected to the oil inlet of oil tank one, the oil outlet of oil tank one is connected to oil port four (5.4), and oil port five (5.5) is the oil supply port.

7. The UAV fuel separator as described in claim 3, characterized in that: Oil passage 1 (3.1), oil passage 2 (3.2), oil passage 3 (3.3) and oil passage 4 (3.4) are all straight oil passages.

8. The UAV fuel separator as described in claim 2, characterized in that: The oil distribution tank (1) is in the shape of a cuboid, with the left and right sides of the cuboid protruding outwards, and the mounting hole (4) is located at the protrusion.

9. The UAV oil separator as described in claim 3, characterized in that: The oil port 1 (5.1), oil port 2 (5.2), oil port 3 (5.3), oil port 4 (5.4), opening 1 (6.1), oil port 5 (5.5), oil port 6 (5.6), oil port 7 (5.7), opening 2 (6.2), opening 3 (6.3) and mounting hole (4) are all threaded holes.

10. The unmanned aerial vehicle (UAV) fuel separator as described in claim 3, characterized in that: Oil port eight (5.8) is provided on oil passage one (3.1).

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