CN202728579U - An unmanned aerial vehicle fuel oil discharging device - Google Patents
An unmanned aerial vehicle fuel oil discharging device Download PDFInfo
- Publication number
- CN202728579U CN202728579U CN 201120523392 CN201120523392U CN202728579U CN 202728579 U CN202728579 U CN 202728579U CN 201120523392 CN201120523392 CN 201120523392 CN 201120523392 U CN201120523392 U CN 201120523392U CN 202728579 U CN202728579 U CN 202728579U
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- fuel oil
- aerial vehicle
- unmanned aerial
- fuel
- oil
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Abstract
The utility model provides an unmanned aerial vehicle fuel oil discharging device comprising an oil drain valve and a breather valve, wherein the oil drain valve is disposed at the bottom of an oil tank and the breather valve is installed at the top of the oil tank. With the unmanned aerial vehicle fuel oil discharging device, the problems of long airborne period, demand for multiple additional devices and incomplete discharge of fuel oil of a conventional fuel oil consuming method are solved and the fuel oil remained in the oil tank can be discharged rapidly by virtue of gravity under the conditions that no additional device is added excessively and an engine is shut down. The unmanned aerial vehicle fuel oil discharging device enables the fuel oil to be discharged safely from an unmanned aerial vehicle in large quantity without power and guarantees safe recovery of the unmanned aerial vehicle.
Description
Technical field
The utility model relates to a kind of fuel oil drainage means for unmanned plane, is specifically related to a kind of fast and safely device of drainage UAV Fuel of gravity that utilizes before landing.
Background technology
The part unmanned plane adopts parachuting and air bag way of recycling at present, the damage that the unmanned plane body is caused for reducing removal process, and the mode that generally adopts is the weight that alleviates unmanned plane by the amount of fuel that the minimizing unmanned plane carries.Usually adopt dual mode: the one, the oil consumption of spiraling, unmanned plane is in the target regional overhead orbit of landing, Fuel Remained is consumed, its advantage is not need additionally to increase any fuel emission equipment, shortcoming is the hang time that has increased unmanned plane, for to some extent loss of engine life, and orbit when wartime, the low latitude was long, security risk is arranged; The second way is to adopt pump pressure type to drain the oil, namely use high-power fuel charger that fuel delivery is arrived the wing wing tip, then discharge, its advantage is can not pollute the unmanned plane body, safety performance is better, shortcoming is that high-power fuel charger running needs large power supply, driving engine must turn round, newly-increased pipeline has increased the wing structure complexity, oil drain tube must possess certain bore, otherwise can't the short time discharge great amount of fuel oil, thereby can't be applied on the thin airfoil unmanned plane, and because will guarantee engine running, fuel oil can not be discharged fully in the unmanned plane.
Summary of the invention
The utility model aims to provide a kind of method with fuel oil drainage before the unmanned plane recovery, can not increase too much additional equipment, remaining fuel oil in the quick drainage fuel tank in the situation of tail-off.
The technical solution of the utility model: the bottom at unmanned plane ventral section fuel tank arranges spill valve, at top of oil-tank the drainage connection for bbreather pipe is set simultaneously.After several seconds, open the spill valve of fuel tank bottom at engine off, open simultaneously the drainage connection for bbreather pipe of top of oil-tank, form current path, fuel oil carries out autonomous drainage under Action of Gravity Field; Unmanned plane release a parachute or air bag before, close simultaneously fuel oil escape cock and drainage connection for bbreather pipe, prevent that foul from entering into fuel tank internal from belly relief outlet and vent.
A kind of UAV Fuel drainage means comprises spill valve and connection for bbreather pipe, it is characterized in that, described spill valve is installed in the bottom of fuel tank, and described connection for bbreather pipe is installed in the top of fuel tank.Described connection for bbreather pipe is installed in the fuel tank rear portion, is communicated with the fuel tank internal top by a breather pipe.Described spill valve and connection for bbreather pipe adopt the electric brake plate valve, and the composition of described electric brake plate valve comprises: electrical motor links to each other with flashboard by connecting rod mechanism, adopts side seal between flashboard and the valve seat.With the connecting rod mechanism fixed angle that staggers stop rod is installed on the described motor rotation axis, on the rotation direction of stop rod both sides micro-switch is set.
By using the utility model, two kinds of fuel oils that overcome existing unmanned plane are destroyed the defective of mode, and unmanned plane can be realized the safe drainage fuel oil of large flow aloft, has guaranteed the safe retrieving of unmanned plane.
Description of drawings
Figure 1 shows that the structural representation of fuel oil drainage means.
Figure 2 shows that the section of structure of fuel oil drainage means.
Figure 3 shows that a kind of preferred embodiment of fuel oil drainage means described in the utility model.
Figure 4 shows that the structural representation of electric brake plate valve described in the utility model.
Figure 5 shows that the schematic diagram of electric brake plate valve flashboard drive mechanism described in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described further.The description that it should be noted that preferred implementation of the present utility model only is exemplary in essence, is not to be intended to limit the utility model, its application or purposes.Should be noted that; although this preferred implementation has disclosed various concrete assembly of the present utility model and details; but those skilled in the art are understood that easily; protection domain of the present utility model is not limited to these assemblies and details; in the situation that does not depart from groundwork of the present utility model; those skilled in the art can make modification or be equal to replacement these assemblies and details, and the embodiment after revising or replacing also will fall within the protection domain of the present utility model.
Figure 1 shows that the structural representation of fuel oil drainage means described in the utility model.Connection for bbreather pipe 2 is installed in the top of fuel tank 1, and spill valve 3 is installed in the bottom of fuel tank.Figure 2 shows that the mounting structure section-drawing of connection for bbreather pipe 2 and spill valve 3.Before unmanned plane reclaimed, tail-off, unmanned plane entered unpowered glide state.For preventing that fuel oil from entering machinery space and catching fire under Aerodynamic force action, open simultaneously connection for bbreather pipe and spill valve after the several seconds at tail-off, be preferably tail-off Open valve after 5 seconds.Because behind the tail-off, the airborne period of unmanned plane is shorter, so spill valve is preferably the electric brake plate valve, and the quick drainage of fuel oil is gone out.
Figure 3 shows that a kind of preferred embodiment of the present utility model, for fear of the aerodynamic configuration that affects unmanned plane because connection for bbreather pipe is installed, connection for bbreather pipe 2 is installed in the rear portion of fuel tank 1, and at fuel tank internal a breather line 4 is set, one end of breather line 4 links to each other with connection for bbreather pipe 2, and the other end leads to the top of fuel tank internal, and fuel tank internal is communicated with outside atmosphere, and guarantee the fuel tank fuel load less than situation under, fuel level is lower than the upper end open of breather line 4.
Fig. 4 is electric flashboard valve arrangement scheme drawing.Electrical motor 5 is connected with flashboard 7 by connecting rod mechanism 6, and a transversal slotting is set on the flashboard 7, and the bearing pin on the connecting rod mechanism 6 embeds in the described fluting, can be along fluting with respect to flashboard 7 transverse shiftings.
Figure 5 shows that electric brake plate valve switching mechanism principle schematic, connecting rod mechanism 6 is captiveed joint with electrical motor 5 main shafts, under the rotation of electrical motor 5, drive flashboard 7 up-and-down movements, realize the opening and closing of valve, position-limited lever 8 rotates synchronously with connecting rod mechanism 6, trigger micro-switch 9 in the fixed position, both sides, realize reaching the demonstration that puts in place of position and pass, and cut off the electricity supply and stay open or closure state.Flashboard 7 and valve seat 10 are realized valve seal by the side seal form.
As another kind of preferred embodiment of the present utility model, release a parachute with air bag when unmanned plane drops to certain altitude at unmanned plane, height indicator transmits elevation information to middle control computer on the machine, middle control machine sends instruction, connection for bbreather pipe 2 and spill valve 3 are closed, parachute and airbag-releasing are finished the recovery of unmanned plane subsequently.
Although described the technical solution of the utility model with reference to preferred implementation; but those skilled in the art are understood that easily; protection domain of the present utility model is not limited to these specific embodiment; in the situation that does not depart from groundwork of the present utility model; can to described embodiment and concrete technical characterictic wherein-for example modules splits; combination or change; or mode of operation and time point in the fuel oil drainage step adjusted; split; technical scheme after combination or the change, and the technical scheme that different time points is selected to determine will fall within the protection domain of the present utility model.
Claims (4)
1. a UAV Fuel drainage means comprises spill valve (3) and connection for bbreather pipe (2), it is characterized in that described spill valve (3) is installed in the bottom of fuel tank (1), and described connection for bbreather pipe (2) is installed in the top of fuel tank (1).
2. UAV Fuel drainage means as claimed in claim 1 is characterized in that, described connection for bbreather pipe (2) is installed in fuel tank (1) rear portion, is communicated with fuel tank (1) inner tip by a breather pipe (4).
3. UAV Fuel drainage means as claimed in claim 1 or 2, it is characterized in that, described spill valve (3) and connection for bbreather pipe (2) adopt the electric brake plate valve, the composition of described electric brake plate valve comprises: electrical motor (5) links to each other with flashboard (7) by connecting rod mechanism (6), adopts side seal between flashboard (7) and the valve seat (9).
4. UAV Fuel drainage means as claimed in claim 3, it is characterized in that, with connecting rod mechanism (6) fixed angle that staggers stop rod (8) is installed on described electrical motor (5) turning cylinder, on the rotation direction of stop rod (8) both sides micro-switch (10) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120523392 CN202728579U (en) | 2011-12-15 | 2011-12-15 | An unmanned aerial vehicle fuel oil discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120523392 CN202728579U (en) | 2011-12-15 | 2011-12-15 | An unmanned aerial vehicle fuel oil discharging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202728579U true CN202728579U (en) | 2013-02-13 |
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ID=47654306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120523392 Expired - Lifetime CN202728579U (en) | 2011-12-15 | 2011-12-15 | An unmanned aerial vehicle fuel oil discharging device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202728579U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111907722A (en) * | 2019-05-09 | 2020-11-10 | 四川旭静天臣科技有限公司 | Oil unloading method for oil-electricity hybrid aircraft |
-
2011
- 2011-12-15 CN CN 201120523392 patent/CN202728579U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111907722A (en) * | 2019-05-09 | 2020-11-10 | 四川旭静天臣科技有限公司 | Oil unloading method for oil-electricity hybrid aircraft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |