CN106081132B - Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme - Google Patents

Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme Download PDF

Info

Publication number
CN106081132B
CN106081132B CN201610594834.9A CN201610594834A CN106081132B CN 106081132 B CN106081132 B CN 106081132B CN 201610594834 A CN201610594834 A CN 201610594834A CN 106081132 B CN106081132 B CN 106081132B
Authority
CN
China
Prior art keywords
oil
fuel
fuel tank
point
pressure regulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201610594834.9A
Other languages
Chinese (zh)
Other versions
CN106081132A (en
Inventor
姜文辉
郭向群
张贺
张永伟
甘子东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Zhuanglong UAV Technology Co Ltd
Original Assignee
Liaoning Zhuanglong UAV Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liaoning Zhuanglong UAV Technology Co Ltd filed Critical Liaoning Zhuanglong UAV Technology Co Ltd
Priority to CN201610594834.9A priority Critical patent/CN106081132B/en
Publication of CN106081132A publication Critical patent/CN106081132A/en
Application granted granted Critical
Publication of CN106081132B publication Critical patent/CN106081132B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D37/00Arrangements in connection with fuel supply for power plant
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D37/00Arrangements in connection with fuel supply for power plant
    • B64D37/02Tanks
    • B64D37/06Constructional adaptations thereof
    • B64D37/08Internal partitioning
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme constitutes entire oil supply system using All-in-One fuel tank, oil pump, oily filter, fuel pressure regulator, one point of heavy wool mouth and hold-down support, and the central idea of scheme is All-in-One, more than one point and Combination Design.Fuel tank is designed using All-in-One, i.e., setting does not contact up and down with the upper and lower surface of fuel tank inside fuel tank and height is less than multiple partitions of fuel tank height, and whole fuel tank is divided into multiple not only mutually indepedent but also interconnected small fuel tank.Oil nozzle is used and is designed one point more, i.e., an oil inlet branches out multiple oil outlets.Fuel pressure regulator and one point of heavy wool mouth are combined into one, and do not need specific placement.The present invention solves the problems, such as to be easy to appear certain engine oil starvation when the inclination of fuel power multi-rotor unmanned aerial vehicle, the problem of the problem of every engine of fuel power multi-rotor unmanned aerial vehicle needs to configure a set of oil supply system, the problem of being easy to appear bubble in oil supply system and fuel pressure regulator need individually arrangement.

Description

Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme
Technical field
The invention belongs to air vehicle technique fields, more particularly to fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme.
Background technique
Currently, the more rotors of fuel power are not also common, the existing more rotors of fuel power mostly use an engine configuration The scheme of a set of oil supply system, the disadvantage is that at high cost, weight is big and maintenance is difficult;The fuel tank of some more rotors of fuel power is letter Single die sinking production is easy to appear inclination when body is motor-driven and causes certain to start without the measure of anti-rock and anti-effluent The parking of machine oil starvation, and independent plug-in can reduce space utilization rate;Some more rotors of fuel power are not provided with fuel pressure adjusting Device, the too low then fuel injector not oil spout of oil pressure or oil spout are weak, and oil pressure is excessively high, damages oil circuit or fuel injector;Some fuel powers revolve more Wing oil circuit arrangement is unreasonable, the modes such as commonly use bundle, ties up, glue to fix, and oil pipe arrangement is also especially in disorder, easy to crimp and generation gas Bubble.
Summary of the invention
The purpose of the present invention is provide one aiming at the problem that above-described fuel power more rotor oil supply systems and deficiency Kind is easy to appear certain engine oil starvation parking when being avoided that the inclination of fuel power multi-rotor unmanned aerial vehicle, every engine needs are matched It sets a set of oil supply system, be easy to appear bubble in oil supply system and the problem of fuel pressure regulator needs individually arrangement.
The technical solution adopted by the present invention is that: a kind of fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme, using All-in-One oil Case, oil pump, oily filter, fuel pressure regulator, one point of heavy wool mouth and hold-down support constitute entire oil supply system, the middle thought of scheme Think it is All-in-One, more than one point and Combination Design.
The All-in-One fuel tank is connected by oil pick-up tube with oil pump, and oil pump is connected with oily filter, and oily filter passes through fuel oil pressure Draught control mechanism is connected with one point of heavy wool mouth, and one point of heavy wool mouth is connected with each engine, and the fuel pressure regulator passes through Oil return pipe is connected with All-in-One fuel tank;The oil pump, oily filter and one point of heavy wool mouth are screwed on hold-down support;The hold-down support It is screwed on fuselage;The fuel pressure regulator is screwed onto the fuel pressure regulator support being made of one with one point of heavy wool mouth On, all components outside oil removal box form a sub-assembly, improve space utilization rate.
The All-in-One fuel tank is designed using All-in-One, i.e., setting does not connect up and down with the upper and lower surface of fuel tank inside fuel tank Touching and height are less than multiple partitions of fuel tank height, and whole fuel tank is divided into multiple not only mutually indepedent but also interconnected point oil Case can prevent from shaking, and increase flight safety, but when being avoided that inclination part oil starvation and cause to stop.
One point of heavy wool mouth is used and is designed one point more, i.e., an oil inlet branches out multiple oil outlets, and described is fuel-displaced Mouth quantity is equal to rotor quantity, guarantees only occur an oily filter, an oil pump and a fuel pressure regulator in oil supply system, It can reduce weight, reduce cost, improve reliability and reduce maintenance difficulty.
Weight in the All-in-One fuel tank is placed in the lowest part of fuel tank, and the oil pump, oily filter, fuel pressure are adjusted Device, one point of heavy wool mouth oil outlet be all slightly above the oil inlet of All-in-One fuel tank.
Fuel pressure regulator is set in oil circuit to adjust oil circuit pressure, is combined into one, is not required to one point of heavy wool mouth Specific placement is wanted, rapid-maintenance and replacement are conducive to.
Working method of the invention are as follows: fly control oil-feed pump and power and send instruction, oil pump starts to pump outward from fuel tank, combustion Oil first passes around oil pump pressurization, flows into oily filter after oil pump outflow, flows into fuel pressure regulator after filtering, if oil pressure is super Preset threshold is crossed, then the pressure ball valve of fuel pressure regulator is opened, and extra fuel oil flows back to fuel tank by oil return pipe, works as pressure When being reduced to preset threshold, pressure ball valve is closed, and stops oil return, and fuel oil is flowed out from fuel pressure regulator, flows into one point of heavy wool Mouth, only fuel oil flow to each engine full of can just flow out from multiple oil outlets after the hermetic type chamber of one point of heavy wool mouth.
Compared with the oil supply system of the more rotors of existing fuel power, the beneficial effects of the present invention are:
(1) one point of heavy wool mouth is used, it is no longer necessary to which every engine all configures a set of oil supply system, mitigates weight, reduces Cost, increased reliability reduce maintenance workload;
(2) fuel tank is divided into the multiple small spaces for being not only relatively isolated but also being interconnected, and can mitigate shaking, increases flight Stability, and it is avoided that when fuselage tilts that being likely to occur fuel distribution unevenness leads to certain engine oil starvation parking;
(3) setting fuel pressure regulator guarantees oil circuit safety, and fuel pressure regulator is combined with one point of heavy wool mouth Integrally, it does not need additionally to arrange, space utilization rate is high
(4) all components outside oil removal box form a sub-assembly, and Combination Design is reasonable to be replaced in rapid-maintenance;
(5) oil outlet of oil pump, oily filter, fuel pressure regulator, one point of heavy wool mouth described in is all slightly above oil inlet, keeps away Exempt from oil circuit and bubble occurs.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of the more rotor fuel feeding schemes of fuel power;
Fig. 2 is the structural schematic diagram of the dynamic six rotor oil supply systems of oil;
Fig. 3 is the structural schematic diagram of one fuel tank of the six directions;
Fig. 4 is the cross-sectional view of one fuel tank of the six directions;
Fig. 5 is the sub-assembly of fuel pressure regulator and one point of six oil nozzle;
Fig. 6 is the upper oil nozzle of one point of six oil nozzle;
Fig. 7 is the lower oil nozzle of one point of six oil nozzle;
Fig. 8 is the structural schematic diagram of the dynamic quadrotor oil supply system of oil;
Wherein: 1: one fuel tank of the six directions, 11: pouring orifice, 12: oil pumping mouth, 13: oil return opening, 14: partition, 15: groove, 16: oil Gage, 17: column slot, 18: divide fuel tank, 2: oil pump, 3: oily filter, 4: fuel pressure regulator, 5: one point of six oil nozzle, 51: upper oil nozzle, 511: oil outlet, 512: oil outlet boss, 513: seal groove, 514: upper die joint, 515: screw hole, 516: type chamber, 52: lower oil Mouth, 521: oil inlet, 522: lower die joint, 523: fuel pressure regulator support, 6: hold-down support, 7: oil pick-up tube, 8: oil return Pipe.
Specific embodiment
Technical solution of the present invention is described in detail below by attached drawing, but protection scope of the present invention is not limited to In the embodiment.
Example one:
As illustrated in fig. 1 and 2, the dynamic six rotor fuel feeding schemes of oil are adjusted by one fuel tank 1 of the six directions, oil pump 2, oily filter 3, fuel pressure 4, one point of six oil nozzle 5 of device, hold-down support 6, oil pick-up tube 7 and oil return pipe 8 form.
One fuel tank 1 of the six directions is connected by oil pick-up tube with oil pump 2, and oil pump 2 is connected with oily filter 3, and oily filter 3 passes through combustion Oil pressure draught control mechanism 4 is connected with one point of six oil nozzle 5, and one point of six oil nozzle 5 is connected with each engine, and the fuel pressure is adjusted Device 4 is connected by oil return pipe with one fuel tank 1 of the six directions;The oil pump 2, oily filter 3 and one point of six oil nozzle 5 are screwed on hold-down support 6; The hold-down support 6 is screwed on fuselage;The fuel pressure regulator 4 is screwed onto the combustion being made of one with one point of six oil nozzle 5 On oil pressure draught control mechanism support 523, all components in addition to one fuel tank 1 of the six directions form a sub-assembly, improve space utilization Rate.
One fuel tank 1 of the six directions is designed using the six directions one, i.e., setting does not contact up and down with the upper and lower surface of fuel tank inside fuel tank And height is less than 6 partitions 14 of fuel tank height, and whole fuel tank is divided into and multiple not only mutually indepedent but also interconnected divides fuel tank 18, as shown in Figure 4.
As shown in figure 3, offering 11, oil pumping mouths 12 of a pouring orifice and an oil return opening 13 on one fuel tank 1 of the six directions.
A groove 15 is arranged in the position opposite with oil pumping mouth 12 and oil return opening 13, it is therefore an objective to guarantee unmanned plane in fuel tank oil Oil mass in groove 15 is only relied on when measuring lower also can normally make a return voyage, and increase the safety of flight.
One fuel tank of the six directions, 1 side is provided with oil mass ruler 16, can be convenient oil mass in observation fuel tank.Among one fuel tank 1 of the six directions It is provided with column slot 17, column slot 17 and girder (see described in patent 201610370474.4) are clearance fit, and one fuel tank 1 of the six directions is through It is fixed on girder, improves space utilization rate.
Fuel pressure regulator 4 is set in oil circuit to adjust oil circuit pressure, is combined into one with one point of six oil nozzle 5, no Specific placement is needed, the oil outlet of fuel pressure regulator 4 is the oil inlet of one point of six oil nozzle 5.
One point of six oil nozzle 5 branches out six oil outlets using one point of six design, i.e. an oil inlet, guarantees in oil supply system Only there is an oily filter, an oil pump and a fuel pressure regulator;The quantity of oil outlet is equal to the quantity of rotor.
One point of six oil nozzle 5 includes upper oil nozzle 51 and lower oil nozzle 52, as shown in fig. 6, having oil outlet 511 on upper oil nozzle 51, going out Hydraulic fluid port boss 512, seal groove 513, upper die joint 514, screw hole 515 and type chamber 516;As shown in fig. 7, having oil inlet on lower oil nozzle 52 Mouth 521, lower die joint 522 and fuel pressure regulator support 523.
Oil outlet boss 512 is the button number in order to increase screw thread, improves connection reliability.
Seal groove 513 is used to place O-ring seal, and depth is slightly less than the diameter of O-ring, and width is slightly larger than O-ring Diameter, sufficient deformation space is reserved to O-ring.Upper die joint 521 and lower die joint 522 interference fit, to form centre Closed type chamber 516.
Fuel oil is flowed into from the oil inlet on lower oil nozzle 52, and only fuel oil is full of after the hermetic type chamber of one point of six oil nozzle 5 It can be flowed out from six oil outlets 511, flow to each engine.
Weight in one fuel tank 1 of the six directions is placed in the lowest part of fuel tank, oil pump 2, oily filter 3,4, one points of fuel pressure regulator The oil outlet of heavy wool mouth 5 is all slightly above oil inlet, avoids occurring excessive bubble in oil circuit.
Fuel pressure regulator 4 is screwed on the fuel pressure regulator support 523 being made of one with one point of six oil nozzle 5, 2, one point of six oily filter 3, oil pump oil nozzle 5 are screwed on hold-down support, and hold-down support is screwed onto fuselage (see patent Described in 201610370474.4) on, all components outside oil removal box form a sub-assembly.
The working method of the present embodiment are as follows: fly control oil-feed pump 2 and power and send instruction, oil pump 2 starts from one fuel tank 1 of the six directions Oil pumping outward, fuel oil first pass around the pressurization of oil pump 2, flow into oily filter 3 after the outflow of oil pump 2, flow into fuel pressure tune after filtering Device 4 is saved, if oil pressure is more than preset threshold, the pressure ball valve of fuel pressure regulator 4 is opened, and extra fuel oil passes through oil return Pipe flows back to one fuel tank 1 of the six directions, and when pressure reduction is to preset threshold, pressure ball valve is closed, and stops oil return, and fuel oil is from fuel pressure Adjuster 4 flows out, and flows into one point of six oil nozzle 5.
Example two:
It is illustrated in figure 8 the dynamic quadrotor fuel feeding scheme of oil, in addition to using one point of four oil nozzle, described in other structures and example one It is identical.One point of four oil nozzle branches out four oil outlets using one point of four design, i.e. an oil inlet, guarantees in oil supply system Only there is an oily filter, an oil pump and a fuel pressure regulator;The quantity of oil outlet is equal to the quantity of rotor.
Above example is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme, each fall within the scope of the present invention it It is interior.

Claims (4)

1. fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme, which is characterized in that its form include All-in-One fuel tank, an oil pump, One oily filter, a fuel pressure regulator, one point of heavy wool mouth and hold-down support;The All-in-One fuel tank passes through oil pick-up tube and oil Pump is connected, and oil pump is connected with oily filter, and oily filter is connected by fuel pressure regulator with one point of heavy wool mouth, one point of heavy wool mouth It is connected with each engine, the fuel pressure regulator is connected by oil return pipe with All-in-One fuel tank;The oil pump, oily filter and One point of heavy wool mouth is screwed on hold-down support;The hold-down support is screwed on fuselage;The fuel pressure regulator is screwed onto On the fuel pressure regulator support being made of one with one point of heavy wool mouth.
2. fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme according to claim 1, which is characterized in that the All-in-One oil Case is designed using All-in-One, i.e., setting does not contact up and down with the upper and lower surface of fuel tank inside fuel tank and height is less than fuel tank height Multiple partitions, whole fuel tank is divided into and multiple not only mutually indepedent but also interconnected divides fuel tank.
3. fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme according to claim 1, which is characterized in that one point of heavy wool Mouth is used and is designed one point more, i.e. an oil inlet branches out multiple oil outlets, and the oil outlet quantity is equal to rotor quantity.
4. fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme according to claim 1, which is characterized in that the All-in-One oil Weight in case is placed in the lowest part of fuel tank, the oil pump, oily filter, fuel pressure regulator, one point of heavy wool mouth oil outlet All it is slightly above the oil inlet of All-in-One fuel tank.
CN201610594834.9A 2016-07-27 2016-07-27 Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme Expired - Fee Related CN106081132B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610594834.9A CN106081132B (en) 2016-07-27 2016-07-27 Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610594834.9A CN106081132B (en) 2016-07-27 2016-07-27 Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme

Publications (2)

Publication Number Publication Date
CN106081132A CN106081132A (en) 2016-11-09
CN106081132B true CN106081132B (en) 2019-06-11

Family

ID=57450321

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610594834.9A Expired - Fee Related CN106081132B (en) 2016-07-27 2016-07-27 Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme

Country Status (1)

Country Link
CN (1) CN106081132B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107150811A (en) * 2017-04-19 2017-09-12 中国航空工业集团公司西安飞机设计研究所 A kind of aircraft oil pumping system
CN108252809B (en) * 2017-12-27 2020-07-24 深圳常锋信息技术有限公司 Power control system and aircraft
CN108438240A (en) * 2018-03-23 2018-08-24 中科灵动航空科技成都有限公司 A kind of rotor wing unmanned aerial vehicle fuel tank
CN109677626A (en) * 2018-12-29 2019-04-26 一飞智控(天津)科技有限公司 Unmanned plane fueller and unmanned plane
CN112949076B (en) * 2021-03-15 2021-11-26 湖北大学 Optimal oil supply strategy calculation method for multi-oil-tank aircraft
CN113335536B (en) * 2021-08-09 2021-11-09 尚良仲毅(沈阳)高新科技有限公司 Unmanned aerial vehicle and oil feeding system thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8876055B2 (en) * 2006-03-28 2014-11-04 Airbus Operations Limited Aircraft refuelling system
CN104986328A (en) * 2015-06-24 2015-10-21 辽宁锐翔通用航空有限公司 Variable-propeller-pitch multi-rotor aircraft driven by multiple oil engines
CN205260185U (en) * 2015-11-17 2016-05-25 石家庄益科创新科技有限公司 Model aeroplane and model ship and for unmanned aerial vehicle engine electric control oil supply unit
CN105644793A (en) * 2016-02-26 2016-06-08 辽宁壮龙无人机科技有限公司 Fuel drive multi-rotor fuel side flow preventing six-in-one fuel tank
CN205293073U (en) * 2015-10-30 2016-06-08 深圳常锋信息技术有限公司 Oil moves and directly drives many rotor crafts
CN205837214U (en) * 2016-07-27 2016-12-28 辽宁壮龙无人机科技有限公司 A kind of fuel power many rotor wing unmanned aerial vehicles fuel feeding scheme

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8876055B2 (en) * 2006-03-28 2014-11-04 Airbus Operations Limited Aircraft refuelling system
CN104986328A (en) * 2015-06-24 2015-10-21 辽宁锐翔通用航空有限公司 Variable-propeller-pitch multi-rotor aircraft driven by multiple oil engines
CN205293073U (en) * 2015-10-30 2016-06-08 深圳常锋信息技术有限公司 Oil moves and directly drives many rotor crafts
CN205260185U (en) * 2015-11-17 2016-05-25 石家庄益科创新科技有限公司 Model aeroplane and model ship and for unmanned aerial vehicle engine electric control oil supply unit
CN105644793A (en) * 2016-02-26 2016-06-08 辽宁壮龙无人机科技有限公司 Fuel drive multi-rotor fuel side flow preventing six-in-one fuel tank
CN205837214U (en) * 2016-07-27 2016-12-28 辽宁壮龙无人机科技有限公司 A kind of fuel power many rotor wing unmanned aerial vehicles fuel feeding scheme

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
发动机多喷嘴流量试验器的研究;郭凤仪,高洪鑫,王喜利,蒲凡;《辽宁工程技术大学学报(自然科学版)》;20160531;第35卷(第5期);正文第538-542页

Also Published As

Publication number Publication date
CN106081132A (en) 2016-11-09

Similar Documents

Publication Publication Date Title
CN106081132B (en) Fuel power multi-rotor unmanned aerial vehicle fuel feeding scheme
US10654581B2 (en) Aircraft fuel system
CN103487101B (en) The system that a kind of testing laboratory diesel consumption is measured and controlled
CN205837214U (en) A kind of fuel power many rotor wing unmanned aerial vehicles fuel feeding scheme
CA2754183A1 (en) Module for managing mass flow and dampening pressure pulsations in a gaseous fuel supply line
CN108150291B (en) A kind of Altitude Long Endurance Unmanned Air Vehicle engine lubrication fuel tank
CN109677626A (en) Unmanned plane fueller and unmanned plane
CN105749632A (en) Negative pressure adjustable jet-type oil-mist separator
CN107701445B (en) A kind of helical-lobe compressor
CN205277946U (en) Hydraulic pressure station of valve
CN203730188U (en) Fuel supply device of engine
CN208918704U (en) Gravity switch unit and aero-engine inverted flight fuel feeding air-breather containing the unit
CN104343601A (en) Filter head for an exchange or housing filter
CN203614484U (en) Overflow valve
CN106593968A (en) Hydraulic pump load control system for one-engine double-pump aero-engine ground test
CN207712317U (en) A kind of hydraulic car that power source is provided for plane hydraulic system pressure supply
CN203431379U (en) Multifunctional gas-liquid swivel joint
CN203431260U (en) Angle type differential pressure valve
CN214836759U (en) Gasoline engine carburetor suitable for different altitudes and gasoline engine
CN105179344B (en) Flow divider valve
CN210191836U (en) Unmanned aerial vehicle oil supply unit and unmanned aerial vehicle
CN202302164U (en) Piston type air pressure regulating and reducing valve
CN205908399U (en) Parallelly connected fuel feed system of two oil tanks
CN206092236U (en) Avoid pressure fuel pump reflowing vortex on high side to fall device of making an uproar
CN204241228U (en) For the exhaust regulator of engine test stand cooling system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB03 Change of inventor or designer information

Inventor after: Jiang Wenhui

Inventor after: Guo Xiangqun

Inventor after: Zhang He

Inventor after: Zhang Yongwei

Inventor after: Gan Zidong

Inventor before: Jiang Wenhui

Inventor before: Chen Hao

Inventor before: Guo Xiangqun

Inventor before: Zhang He

Inventor before: Zhang Yongwei

Inventor before: Lv Hui

Inventor before: Gan Zidong

Inventor before: Zhang Kuiwen

Inventor before: Wang Ziqi

COR Change of bibliographic data
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190611