CN217374913U - Unmanned aerial vehicle fuel oil system - Google Patents
Unmanned aerial vehicle fuel oil system Download PDFInfo
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- CN217374913U CN217374913U CN202220842315.0U CN202220842315U CN217374913U CN 217374913 U CN217374913 U CN 217374913U CN 202220842315 U CN202220842315 U CN 202220842315U CN 217374913 U CN217374913 U CN 217374913U
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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
- Y02T50/40—Weight reduction
Abstract
The utility model provides an unmanned aerial vehicle fuel oil system, includes oil storage tank, fuel feeding oil tank, the check valve and the protection valve of overturning that admits air, the fuel feeding oil tank is less than on spatial arrangement the oil storage tank, the oil storage tank with fuel feeding oil tank intercommunication, admit air the check valve with the protection valve of overturning set up in on the oil storage tank, admit air the check valve with the protection valve of overturning is used for providing fresh air for the oil storage tank, the protection valve of overturning is used for preventing the fuel and spills over. The utility model discloses an unmanned aerial vehicle fuel oil system processing, production, assembly and maintenance are simple and convenient, and the cost is lower, can balance the low pressure, eliminate excessive pressure and carry out the protection of overturning to the fuel oil system, make unmanned aerial vehicle when verting and every single move, the fuel does not spill over, has eliminated potential safety hazard and environmental pollution.
Description
Technical Field
The utility model relates to an unmanned aerial vehicle field especially relates to an unmanned aerial vehicle fuel oil system.
Background
With the rapid development of global unmanned aerial vehicle market, unmanned aerial vehicles have been widely used in various fields such as security inspection, technical reconnaissance, logistics travel, consumer life, agriculture and forestry plant protection. The power system of the unmanned aerial vehicle plays a decisive role in the development of the unmanned aerial vehicle, so that new requirements are provided for an aircraft engine fuel system, and the design of the high-reliability fuel system of the unmanned aerial vehicle is very important.
The fuel system of the unmanned aerial vehicle can supply clean fuel with rated pressure and flow to the engine in all flight states allowed by the unmanned aerial vehicle; the fuel system also needs to store a considerable amount of fuel to ensure that the unmanned aerial vehicle has a long enough driving range; the fuel system also needs to ensure that the problem of oil leakage or unsmooth oil supply does not occur when the unmanned aerial vehicle flies in a hovering mode, a flat flight mode and a large-angle pitching flight mode; the design of fuel oil system still can influence unmanned aerial vehicle's lightweight to a certain extent, ensures that it is applicable to unmanned aerial vehicle flight.
The utility model with the publication number of CN212074446U discloses a high-reliability fuel oil system of a large unmanned aerial vehicle, which uses a front oil tank, a middle oil tank and a rear oil tank, wherein the middle oil tank is communicated with the front oil tank and the rear oil tank through an oil conveying system; the front oil tank is used for oiling the whole fuel tank system; the middle oil tank is lowest in the bottom surface in the vertical direction and is used for conveying fuel oil to the engine through an oil supply system; the rear oil tank stores oil and adjusts the balance of the whole machine body; the structure adopts a pure mechanical gravity oil transportation technology, the structure is very simple, and meanwhile, the gravity center adjusting function is realized by adopting a redundancy design. But the three oil tanks in the front, in the middle of setting in this scheme, back tend to bring the problem of unmanned aerial vehicle weight increase, are unfavorable for the lightweight.
The invention patent with the publication number of CN112340037A discloses a double-cavity fuel system suitable for the dive flight of an unmanned aerial vehicle, which consists of a soft oil tank and an oil-gas separator, wherein the oil-gas separator is divided into an upper cavity and a lower cavity, the outlet of the soft oil tank is communicated with the oil inlet at the upper end of the oil-gas separator through an oil pump, and the oil outlet at the lower end of the oil-gas separator is externally connected with the oil inlet of an engine through a one-way valve; an oil inlet and an exhaust port are formed in the upper end cover of the oil-gas separator; this scheme can adapt to unmanned aerial vehicle under big motor-driven flight gesture, and especially when diving flight and pull-up fly again, fuel oil system can supply pure fuel for the engine steadily reliably. But need additionally set up the oil pump fuel feeding between the soft oil tank that sets up in this scheme and the oil and gas separator, also can increase unmanned aerial vehicle weight, be unfavorable for the lightweight.
The invention patent with the publication number of CN111137462A discloses a large freight unmanned aerial vehicle fuel system, which comprises a first fuel supply system and a second fuel supply system, can actively adjust the fuel supply pressure, is provided with a redundant backup fuel supply and delivery system, and has excellent safety performance. But two sets of oil feeding system that set up in this scheme will increase unmanned aerial vehicle weight, be unfavorable for the lightweight.
As can be seen, on one hand, the conventional fuel system of the unmanned aerial vehicle has a large number of parts, which results in a large weight and is not beneficial to configuring more loads for the unmanned aerial vehicle; on the other hand, the problems of fuel overflow and unsmooth fuel supply from an exhaust valve during large-angle pitching flight of the unmanned aerial vehicle exist, and the problem of unsmooth fuel supply is easy to exist when the fuel quantity is low. Part prior art scheme also can not be when guaranteeing unmanned aerial vehicle lightweight, effectively solve the fuel oil system oil spilling or the not smooth problem of fuel feeding when unmanned aerial vehicle wide-angle verts, every single move flight.
Disclosure of Invention
In view of this, the utility model provides an when guaranteeing unmanned aerial vehicle lightweight, effectively improve the unmanned aerial vehicle fuel oil system of the fuel oil system oil spilling phenomenon when unmanned aerial vehicle wide-angle verts, every single move flight.
The utility model provides an unmanned aerial vehicle fuel oil system, including oil storage oil tank, fuel feeding oil tank, the check valve and the protection valve of overturning of admitting air, the fuel feeding oil tank is less than on spatial arrangement the oil storage oil tank, the oil storage oil tank with the fuel feeding oil tank intercommunication, admit air the check valve with the protection valve of overturning set up in on the oil storage oil tank, admit air the check valve with the protection valve of overturning is used for providing fresh air for the oil storage oil tank, the protection valve of overturning is used for preventing the fuel and spills over.
Further, the volume of the oil storage tank is larger than that of the oil supply tank.
Further, the oil storage oil tank with the fuel feeding oil tank is two independent oil tanks, unmanned aerial vehicle fuel system still includes defeated oil pipe and breather pipe, defeated oil pipe is connected the lower part of oil storage oil tank with the upper portion of fuel feeding oil tank, the lower extreme of breather pipe with the fuel feeding oil tank intercommunication, just the upper end of breather pipe extends to the upper portion of oil storage oil tank.
Further, the oil storage tank with the fuel feeding tank integrated into one piece and intercommunication each other, the fuel feeding tank set up in the bottom of oil storage tank.
Further, unmanned aerial vehicle fuel oil system still includes the oil hammer, the oil hammer set up in the fuel feeding oil tank and be located lead to the outside pipeline lower extreme of fuel feeding oil tank is used for following fuel absorption in fuel feeding oil tank bottom.
Further, unmanned aerial vehicle fuel system still includes first level sensor and/or second level sensor, first level sensor is used for detecting the fuel liquid level height of oil storage oil tank, second level sensor is used for detecting the fuel liquid level height of fuel feeding oil tank.
Further, unmanned aerial vehicle fuel system still includes fuel pump and fuel filter, the fuel pump pass through the pipeline with the fuel feeding oil tank with fuel filter connects, the fuel pump be used for with fuel in the fuel feeding oil tank is carried extremely fuel filter, fuel filter is used for filtering the fuel.
Furthermore, the fuel system of the unmanned aerial vehicle further comprises a fuel injector and a fuel pressure regulating valve, the fuel injector is connected with the fuel filter through a pipeline, the fuel pressure regulating valve is arranged on the pipeline between the fuel injector and the fuel storage oil tank, the fuel injector is used for injecting fuel according to the working condition of the engine, and the fuel pressure regulating valve is used for controlling the fuel pressure in the pipeline.
Further, unmanned aerial vehicle fuel system still includes first flow sensor and/or second flow sensor, first flow sensor set up in fuel filter with on the pipeline between the sprayer, first flow sensor is used for detecting the interior fuel flow of pipeline after filtering, second flow sensor set up in fuel pressure regulating valve with on the pipeline between the oil storage tank, second flow sensor is used for detecting the interior fuel flow who flows back to the oil storage tank after the oil spout of pipeline.
Further, unmanned aerial vehicle fuel system still includes the oil filler plug, the oil filler plug set up in on the oil storage tank, the oil storage tank passes through the oil filler plug refuels.
To sum up, the utility model discloses an unmanned aerial vehicle fuel oil system stores and supplies with the fuel through a big one little oil storage tank and fuel feeding oil tank, and processing, production, assembly and maintenance are simple and convenient, and the cost is lower, the utility model provides an oil storage tank adopts pure mechanical type gravity oil transportation through defeated oil pipe, the utility model provides an oil storage tank is last still to be provided with one-way admission valve and rollover protection valve, and it can balance the low pressure, eliminate the excessive pressure and turn over the protection to the fuel oil system, makes unmanned aerial vehicle when verting and every single move, and the fuel does not spill over, has eliminated potential safety hazard and environmental pollution.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is the utility model provides an unmanned aerial vehicle fuel oil system's schematic diagram.
Fig. 2 is a schematic view of another embodiment of the oil storage tank and the oil supply tank of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
The utility model discloses an unmanned aerial vehicle fuel oil system is located the unmanned aerial vehicle.
Please refer to fig. 1, the utility model discloses an unmanned aerial vehicle fuel system includes oil storage tank 1, fuel feeding tank 2, check valve 6 and the protection valve 7 that turns over that admits air, oil storage tank 1 and fuel feeding tank 2 intercommunication, fuel feeding tank 2 is less than oil storage tank 1 in spatial arrangement, check valve 6 and the protection valve 7 that turns over that admits air set up on oil storage tank 1, check valve 6 and the protection valve 7 that turns over that admits air are used for providing fresh air for oil storage tank 1, the protection valve 7 that turns over is used for preventing the fuel to spill over. In this embodiment, the volume of the oil storage tank 1 is greater than the volume of the oil supply tank 2, the oil storage tank 1 with a large volume is used for storing fuel oil, the endurance mileage is ensured, and the oil supply tank 2 with a small volume is used for supplying oil to the engine during flight. The small-volume oil supply tank 2 can prevent the influence of fuel foam on the oil supply stability, and can also reduce the dead oil weight of a fuel system, maximize available fuel and reduce unavailable residual oil. Because the fuel supply tank 2 is lower than the fuel storage tank 1 in spatial arrangement, the fuel supply tank 2 can be in a full state all the time, and the fuel storage tank 1 can adopt a pure mechanical gravity fuel delivery mode when delivering fuel to the fuel supply tank 2, so that the structure is simple and reliable, and the lightweight of a fuel system is realized.
Specifically, because fuel feeding oil tank 2 and oil storage oil tank 1 intercommunication, it can carry out oil tank internal pressure balance through the check valve 6 that admits air of oil storage oil tank 1 and external atmosphere, the check valve 6 and the protection valve 7 of overturning of admitting air can be balanced because take out the negative pressure that the fuel produced, provide fresh air, the protection valve 7 of overturning can also eliminate the excessive pressure that produces because the fuel preheats through the gas that produces in the oil storage oil tank 1 of discharging, if fuel oil system is in the inclined position, the protection valve 7 of overturning can also seal the gas vent under the action of gravity, guarantee unmanned aerial vehicle when verting and every single move, the fuel does not spill over, and the check valve 6 that admits air this moment still carries out oil tank internal pressure balance, potential safety hazard and environmental pollution have been eliminated.
In this embodiment, the oil storage tank 1 and the oil supply tank 2 are two independent tanks, the fuel system of the unmanned aerial vehicle of the present invention further includes an oil delivery pipe 3 and a vent pipe 4, the oil storage tank 1 is respectively communicated with the oil supply tank 2 through the oil delivery pipe 3 and the vent pipe 4, the oil delivery pipe 3 connects the lower portion of the oil storage tank 1 with the upper portion of the oil supply tank 2, the lower end of the vent pipe 4 is communicated with the oil supply tank 2, and the upper end of the vent pipe 4 extends to the upper part of the oil storage tank 1, that is, the oil storage tank 1 transfers oil to the oil supply tank 2 through the oil transfer pipe 3, the oil supply tank 2 discharges oil gas to the oil storage tank 1 through the vent pipe 4, that is, the vent pipe 4 can balance the pressure in the oil storage tank 1 and the oil supply tank 2, when necessary, the expansion oil pipe is used as the expansion oil pipe of the oil supply oil tank 2, so that the fuel oil generated by the thermal expansion of the oil supply oil tank 2 can return to the oil storage oil tank 1, and the oil supply oil tank 2 is prevented from being expanded and exploded due to the thermal expansion.
Please refer to fig. 2 together, in another embodiment of the present invention, the oil storage tank 1 and the oil supply tank 2 are integrally formed and communicated with each other, the oil supply tank 2 is disposed at the bottom of the oil storage tank 1, in this embodiment, the oil delivery pipe 3 for delivering oil and the vent pipe 4 for ventilation are omitted, the oil supply tank 2 directly passes through the air inlet check valve 6 on the oil storage tank 1 and still performs the pressure balance inside the oil tank, the oil storage tank 1 and the oil supply tank 2 are integrally designed, so that the whole lightweight degree of the fuel system is more higher. But this kind of design is higher to the arrangement space requirement of oil tank, and is not applicable to all unmanned aerial vehicles.
Further, the utility model discloses an unmanned aerial vehicle fuel system still includes first level sensor 1a and/or second level sensor 2a, and first level sensor 1a is used for detecting the fuel liquid level height of oil storage tank 1, and second level sensor 2a is used for detecting the fuel liquid level height of fuel feeding tank 2. In the embodiment, the first liquid level sensor 1a and the second liquid level sensor 2a are both ultrasonic sensors, and the readings of the first liquid level sensor 1a and the second liquid level sensor 2a can be used for evaluating the fuel storage amount in the fuel storage tank 1 and the cruising condition.
Further, the utility model discloses an unmanned aerial vehicle fuel system still includes fuel pump 8 and fires oil filter 9, and fuel pump 8 passes through the pipeline and is connected with fuel feeding oil tank 2 and fire oil filter 9 respectively, and fuel pump 8 is used for carrying the fuel in the fuel feeding oil tank 2 to firing oil filter 9, fires oil filter 9 and is used for filtering the fuel.
Further, the utility model discloses an unmanned aerial vehicle fuel system still includes oil hammer 2b, and oil hammer 2b sets up in fuel feeding oil tank 2 and is located the outside pipeline lower extreme of fuel feeding oil tank 2, and it passes through pipeline and 8 intercommunications of fuel pump, and oil hammer 2b can inhale the oil from fuel feeding oil tank bottom under the action of gravity, ensures that fuel pump 8 can pump oil as required under each flight gesture.
Further, the utility model discloses an unmanned aerial vehicle fuel system still includes sprayer 10 and fuel pressure regulating valve 11, and sprayer 10 passes through the pipeline to be connected with fuel filter 9, and on fuel pressure regulating valve 11 located the pipeline between with sprayer 10 and the oil storage tank 1, sprayer 10 was used for according to the oil spout of engine operating mode, and fuel pressure regulating valve 11 is used for controlling the pipeline internal fuel pressure.
Further, the utility model discloses an unmanned aerial vehicle fuel system still includes first flow sensor 12 and/or second flow sensor 13, first flow sensor 12 sets up on the pipeline between fuel filter 9 and sprayer 10, first flow sensor 12 is used for detecting the interior fuel flow of pipeline after filtering, second flow sensor 13 sets up on the pipeline between fuel pressure regulating valve 11 and oil storage oil tank 1, second flow sensor 13 is used for detecting the interior fuel flow that flows back to oil storage oil tank 1 behind the oil spout of pipeline. If the difference value between the first flow sensor 12 and the second flow sensor 13 is calculated under the condition that no extra fuel is added, the overall consumption of the fuel in the fuel system can be calculated, and the fuel consumption in the fuel storage tank 1 and the overall consumption of the fuel can be used for evaluating whether the fuel system has abnormal phenomena such as fuel overflow and the like.
Further, the utility model discloses an unmanned aerial vehicle fuel system still includes filler plug 1b, and filler plug 1b sets up on oil storage tank 1, and oil storage tank 1 refuels through filler plug 1 b.
To sum up, the utility model discloses an unmanned aerial vehicle fuel oil system stores and supplies with the fuel through a big one little oil storage tank and fuel feeding oil tank, and processing, production, assembly and maintenance are simple and convenient, and the cost is lower, the utility model provides an oil storage tank adopts pure mechanical type gravity oil transportation through defeated oil pipe, the utility model provides an oil storage tank is last still to be provided with one-way admission valve and rollover protection valve, and it can balance the low pressure, eliminate the excessive pressure and turn over the protection to the fuel oil system, makes unmanned aerial vehicle when verting and every single move, and the fuel does not spill over, has eliminated potential safety hazard and environmental pollution.
Above, it is only the preferred embodiment of the present invention, and it is not limited to the present invention in any form, although the present invention has been disclosed with the preferred embodiment, but not limited to the present invention, and any skilled person familiar with the art can make some changes or modifications to equivalent embodiments without departing from the technical scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention all still belong to the technical scope of the present invention.
Claims (10)
1. An unmanned aerial vehicle fuel oil system which characterized in that: it includes fuel storage tank (1), fuel feeding tank (2), check valve (6) and the protection valve of overturning (7) admits air, fuel feeding tank (2) are less than in spatial arrangement fuel storage tank (1), fuel storage tank (1) with fuel feeding tank (2) intercommunication, admit air check valve (6) with the protection valve of overturning (7) set up in on fuel storage tank (1), admit air check valve (6) with the protection valve of overturning (7) are used for doing fuel storage tank (1) provides fresh air, the protection valve of overturning (7) are used for preventing the fuel to spill over.
2. The unmanned aerial vehicle fuel system of claim 1, wherein: the volume of the oil storage tank (1) is larger than that of the oil supply tank (2).
3. The unmanned aerial vehicle fuel system of claim 1, wherein: oil storage tank (1) with fuel feeding tank (2) are two independent oil tanks, unmanned aerial vehicle fuel system still includes defeated oil pipe (3) and breather pipe (4), defeated oil pipe (3) are connected the lower part of oil storage tank (1) with the upper portion of fuel feeding tank (2), the lower extreme of breather pipe (4) with fuel feeding tank (2) intercommunication, just the upper end of breather pipe (4) extends to the upper portion of oil storage tank (1).
4. The unmanned aerial vehicle fuel system of claim 1, wherein: oil storage tank (1) with fuel feeding tank (2) integrated into one piece and intercommunication each other, fuel feeding tank (2) set up in the bottom of oil storage tank (1).
5. An unmanned aerial vehicle fuel system as defined in claim 1, wherein: unmanned aerial vehicle fuel system still includes oil hammer (2b), oil hammer (2b) set up in fuel feeding oil tank (2) and be located lead to the outside pipeline lower extreme of fuel feeding oil tank (2) is used for following fuel suction is inhaled to fuel feeding oil tank (2) bottom.
6. The unmanned aerial vehicle fuel system of claim 1, wherein: unmanned aerial vehicle fuel system still includes first level sensor (1a) and/or second level sensor (2a), first level sensor (1a) are used for detecting the fuel liquid level height of oil storage tank (1), second level sensor (2a) are used for detecting the fuel liquid level height of fuel feeding tank (2).
7. The unmanned aerial vehicle fuel system of claim 1, wherein: unmanned aerial vehicle fuel system still includes fuel pump (8) and fuel filter (9), fuel pump (8) through the pipeline with fuel feeding oil tank (2) with fuel filter (9) are connected, fuel pump (8) be used for with fuel in fuel feeding oil tank (2) is carried extremely fuel filter (9), fuel filter (9) are used for filtering the fuel.
8. The unmanned aerial vehicle fuel system of claim 7, wherein: the unmanned aerial vehicle fuel system further comprises a fuel injector (10) and a fuel pressure regulating valve (11), the fuel injector (10) is connected with the fuel filter (9) through a pipeline, the fuel pressure regulating valve (11) is arranged on the pipeline between the fuel injector (10) and the fuel storage tank (1), the fuel injector (10) is used for injecting fuel according to the working condition of an engine, and the fuel pressure regulating valve (11) is used for controlling the fuel pressure in the pipeline.
9. The unmanned aerial vehicle fuel system of claim 8, wherein: unmanned aerial vehicle fuel system still includes first flow sensor (12) and/or second flow sensor (13), first flow sensor (12) set up in fuel filter (9) with on the pipeline between sprayer (10), first flow sensor (12) are used for detecting the interior fuel flow of pipeline after filtering, second flow sensor (13) set up in fuel pressure regulating valve (11) with on the pipeline between oil storage tank (1), flow back after second flow sensor (13) are used for detecting the interior oil spout of pipeline oil storage tank (1) the fuel flow.
10. The unmanned aerial vehicle fuel system of claim 1, wherein: unmanned aerial vehicle fuel system still includes filler plug (1b), filler plug (1b) set up in on oil storage tank (1), oil storage tank (1) passes through filler plug (1b) refuels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220842315.0U CN217374913U (en) | 2022-04-08 | 2022-04-08 | Unmanned aerial vehicle fuel oil system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220842315.0U CN217374913U (en) | 2022-04-08 | 2022-04-08 | Unmanned aerial vehicle fuel oil system |
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| CN217374913U true CN217374913U (en) | 2022-09-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117622496A (en) * | 2024-01-23 | 2024-03-01 | 西安爱生技术集团有限公司 | Unmanned aerial vehicle fuel system suitable for electric control engine and design method |
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2022
- 2022-04-08 CN CN202220842315.0U patent/CN217374913U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117622496A (en) * | 2024-01-23 | 2024-03-01 | 西安爱生技术集团有限公司 | Unmanned aerial vehicle fuel system suitable for electric control engine and design method |
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Effective date of registration: 20230703 Address after: 610045 No. 601 and 602, zone a, building 5, No. 200, Tianfu Fifth Street, Chengdu high tech Zone, Chengdu, Sichuan Patentee after: SICHUAN AOSSCI TECHNOLOGY Co.,Ltd. Address before: 641400 No. 601 and 602, zone a, building 5, No. 200, Tianfu Fifth Street, Chengdu high tech Zone, Chengdu, Sichuan Patentee before: Wofei Changkong Technology (Chengdu) Co.,Ltd. Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. |
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