CN206782094U - A kind of discharge opeing dome structure for aircraft APU fuel feed pumps - Google Patents
A kind of discharge opeing dome structure for aircraft APU fuel feed pumps Download PDFInfo
- Publication number
- CN206782094U CN206782094U CN201720684947.8U CN201720684947U CN206782094U CN 206782094 U CN206782094 U CN 206782094U CN 201720684947 U CN201720684947 U CN 201720684947U CN 206782094 U CN206782094 U CN 206782094U
- Authority
- CN
- China
- Prior art keywords
- main bodies
- fuel feed
- discharge opeing
- pant main
- radome fairing
- 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
Links
Abstract
A kind of discharge opeing dome structure for aircraft APU fuel feed pumps, including radome fairing mounting seat, pant main bodies, drainage plate, leakage fluid dram and installation bolt；The radome fairing mounting seat is fixedly mounted on the fuselage skin at fuel feed pump minimum point by several installation bolts, and is securely fixed again by welding；The bottom of the radome fairing mounting seat is fixedly installed a pant main bodies；The bottom inside insertion of the pant main bodies is provided with a drainage plate；The bottom side of the pant main bodies is provided with a leakage fluid dram.The setting of the utility model pant main bodies, advantageously reduce resistance, the side of pant main bodies is compared with tip shape structure, opposite side is more rounded shape structure, after installation when aircraft flight forward, the first air contact with front in the more sharp side of pant main bodies, because angle is smaller caused air drag is smaller, opposite side is more rounded to be easy to form a vortex at rear, is easy to liquid to discharge.
Description
Technical field
It the utility model is related to aircraft fire protection design field, more particularly to a kind of row for aircraft APU fuel feed pumps
Liquid radome fairing knot.
Background technology
The suggestion of aircraft certification Advisory Circulars：Awing the fuel oil of APU feed line leakages is discharged in time and more pacified outside machine
Entirely, if without aerial discharge opeing measure, there are potential risks in seaworthiness and on safeguarding.In order to reduce Airworthiness Certification risk, improve
Security, general civil aircraft APU fuel feed pumps have aerial discharge opeing to design, will leak out in time outside fuel oil discharge machine.Due to seaworthiness
The requirement of clause, fuel oil can not enter APU exhaust, simultaneously because APU tail cones are high-temperature regions, fuel oil can not be from APU tail cone tables
Surface current mistake.Therefore, in order to avoid fuel oil enters APU exhaust outlets and flows through tail cone surface, generally there is the installation discharge opeing on covering whole
Stream cover, allows fuel oil to be discharged into the air, APU exhaust outlets is flowed into so as to avoid after fuel oil flows through tail cone surface.
Limited the inventors discovered that APU fuel feed pump discharge opeings radome fairing on existing aircraft is more by height factor, highly compared with
Height increases windage when using, and flammable liquid can still be infected with fuselage when relatively low, it is impossible to preferably exclude potential risk.
Then, inventor in view of this, adhere to the relevant industries for many years it is abundant design and develop and the experience of actual fabrication,
Improvement is studied for existing structure and missing, there is provided a kind of discharge opeing dome structure for aircraft APU fuel feed pumps, with
Phase reaches the purpose with more more practical value.
Utility model content
The purpose of this utility model is to provide a kind of discharge opeing dome structure for aircraft APU fuel feed pumps, to solve
APU fuel feed pump discharge opeings radome fairing on the existing aircraft proposed in above-mentioned background technology is more to be limited by height factor, highly compared with
Height increases windage when using, and flammable liquid can still be infected with fuselage when relatively low, it is impossible to the problem of preferably excluding potential risk.
The utility model is used for the purpose and effect of the discharge opeing dome structure of aircraft APU fuel feed pumps, by skill in detail below
Art means are reached：
A kind of discharge opeing dome structure for aircraft APU fuel feed pumps, wherein, this is used for the discharge opeing of aircraft APU fuel feed pumps
Dome structure includes：
Radome fairing mounting seat, pant main bodies, drainage plate, leakage fluid dram and installation bolt；
The radome fairing mounting seat is fixedly mounted on the fuselage skin at fuel feed pump minimum point by several installation bolts
On, and securely fixed again by welding；The bottom of the radome fairing mounting seat is fixedly installed a pant main bodies；It is described whole
The bottom inside insertion of stream cover main body is provided with a drainage plate；The bottom side of the pant main bodies is provided with a discharge opeing
Mouthful.
Further, the side of the pant main bodies is that opposite side is more rounded shape structure compared with tip shape structure.
Further, the top side of the leakage fluid dram is provided with a lid projection.
Further, the side of the drainage plate is triangle structure.
With existing structure in comparison, the utility model has the following advantages that：
1. the setting of the utility model pant main bodies, resistance is advantageously reduced, the side of pant main bodies is more sharp
Shape structure, opposite side is more rounded shape structure, after installation when aircraft flight forward, the more sharp side of pant main bodies first with
The air contact in front, because angle is smaller caused air drag is smaller, opposite side is more rounded to be easy to be formed at rear
One vortex, is easy to liquid to discharge.
2. the setting of the utility model leakage fluid dram, is advantageous to the security used, the top side of leakage fluid dram is provided with one
Individual lid projection, when the fuel oil revealed in pant main bodies discharges, some may move up splashing, and this is covered
Shape projection can just play a barrier effect, avoid fuel oil from being infected with fuselage, reduce potential safety hazard.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model pant main bodies overlooking the structure diagram；
Fig. 3 is the utility model drainage plate right side structural representation.
In figure：Radome fairing mounting seat -1；Pant main bodies -2；Drainage plate -3；Leakage fluid dram -4；Installation bolt -5.
Embodiment
Below, embodiment of the present utility model is will be explained in, the example is shown in the accompanying drawings and the description below.Although will
The utility model is described with reference to exemplary embodiment, it is to be understood that the description does not really want the utility model to be limited to this to show
The embodiment of example property.On the contrary, the utility model will not only cover the exemplary embodiment, but also cover various replacements,
Change, equivalent and other embodiment, it can be included in spirit of the present utility model and the model that appended claims are limited
In enclosing.
Referring to accompanying drawing 1 to accompanying drawing 3, a kind of discharge opeing dome structure for aircraft APU fuel feed pumps, include：
Radome fairing mounting seat 1, pant main bodies 2, drainage plate 3, leakage fluid dram 4 and installation bolt 5；
Radome fairing mounting seat 1 is fixedly mounted on the fuselage skin at fuel feed pump minimum point by several installation bolts 5,
And securely fixed again by welding；The bottom of radome fairing mounting seat 1 is fixedly installed a pant main bodies 2；Pant main bodies 2
Bottom inside insertion one drainage plate 3 is installed；The bottom side of pant main bodies 2 is provided with a leakage fluid dram 4.
The preferred embodiment of discharge opeing dome structure for aircraft APU fuel feed pumps as described above, wherein, radome fairing
The side of main body 2 is that opposite side is more rounded shape structure compared with tip shape structure, after installation when aircraft flight forward, radome fairing
The first air contact with front in the more sharp side of main body 2, because angle is smaller caused air drag is smaller, opposite side
It is more rounded to be easy to form a vortex at rear, it is easy to liquid to discharge；
The preferred embodiment of discharge opeing dome structure for aircraft APU fuel feed pumps as described above, wherein, leakage fluid dram
4 top side is provided with a lid projection, and when the fuel oil of leakage in pant main bodies 2 discharges, some may
Splashing is moved up, and this lid projection can just play a barrier effect, avoid fuel oil from being infected with fuselage, reduce safety
Hidden danger；
The preferred embodiment of discharge opeing dome structure for aircraft APU fuel feed pumps as described above, wherein, drainage plate
3 side is triangle structure, and the liquid inside pant main bodies 2 can be first fallen on drainage plate 3 when discharging, Ran Houxiang
The sharp corner of the bottom of drainage plate 3 collects, and more concentrates during discharge opeing.
The operation principle of the present embodiment：
When being used for the discharge opeing dome structure of aircraft APU fuel feed pumps using this, radome fairing mounting seat 1 is passed through during installation
Several installation bolts 5 are fixedly mounted on the fuselage skin at fuel feed pump minimum point, and are securely fixed again by welding, are being flown
The fuel oil of APU feed line leakages can be introduced into the cavity of pant main bodies 2 in row, then fallen on drainage plate 3, from drawing
The top of flowing plate 3 is collected to the sharp corner of bottom, finally concentrates and discharges, the sides of pant main bodies 2 be compared with tip shape structure,
Opposite side is more rounded shape structure, after installation when aircraft flight forward, the more sharp side elder generation of pant main bodies 2 and front
Air contact, because angle is smaller caused air drag is smaller, opposite side is more rounded to be easy to form a whirlpool at rear
Stream, is easy to liquid to discharge, and the top side of leakage fluid dram 4 is provided with a lid projection, when the fuel oil of leakage in pant main bodies 2
When discharging, some may move up splashing, and this lid projection can just play a barrier effect, avoid
Fuel oil is infected with fuselage, reduces potential safety hazard.
It should be noted that the standardized element that uses of the utility model can commercially, shaped piece according to
Specification and accompanying drawing record can carry out customized, and the specific connected mode of each part is using ripe in the prior art
Bolt, rivet, the conventional meanses such as welding, machinery, part and equipment are using in the prior art, conventional model, inventor
It will not be described in detail herein.
In summary, although the utility model is described in detail with reference to the foregoing embodiments, for this area
For technical staff, it can still modify to the technical scheme described in foregoing embodiments, or to which part
Technical characteristic carries out equivalent substitution, all within the spirit and principles of the utility model, any modification for being made, equivalent substitution,
Improve etc., it should be included within the scope of protection of the utility model.
Claims (4)
- A kind of 1. discharge opeing dome structure for aircraft APU fuel feed pumps, it is characterised in that：Described is used for aircraft APU fuel feeding The discharge opeing dome structure of pipe includes：Radome fairing mounting seat, pant main bodies, drainage plate, leakage fluid dram and installation bolt；The radome fairing mounting seat is fixedly mounted on the fuselage skin at fuel feed pump minimum point by several installation bolts, and Securely fixed again by welding；The bottom of the radome fairing mounting seat is fixedly installed a pant main bodies；The radome fairing The bottom inside insertion of main body is provided with a drainage plate；The bottom side of the pant main bodies is provided with a leakage fluid dram.
- 2. the discharge opeing dome structure according to claim 1 for aircraft APU fuel feed pumps, it is characterised in that：It is described whole The side for flowing cover main body is that opposite side is more rounded shape structure compared with tip shape structure.
- 3. the discharge opeing dome structure according to claim 1 for aircraft APU fuel feed pumps, it is characterised in that：The row The top side of liquid mouth is provided with a lid projection.
- 4. the discharge opeing dome structure according to claim 1 for aircraft APU fuel feed pumps, it is characterised in that：It is described to draw The side of flowing plate is triangle structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720684947.8U CN206782094U (en) | 2017-06-14 | 2017-06-14 | A kind of discharge opeing dome structure for aircraft APU fuel feed pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720684947.8U CN206782094U (en) | 2017-06-14 | 2017-06-14 | A kind of discharge opeing dome structure for aircraft APU fuel feed pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206782094U true CN206782094U (en) | 2017-12-22 |
Family
ID=60717088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720684947.8U Expired - Fee Related CN206782094U (en) | 2017-06-14 | 2017-06-14 | A kind of discharge opeing dome structure for aircraft APU fuel feed pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206782094U (en) |
-
2017
- 2017-06-14 CN CN201720684947.8U patent/CN206782094U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103224018B (en) | The drainage mast in the cabin of the auxiliary power unit of aircraft | |
| CN103448911A (en) | Extreme low-altitude drop device | |
| CN206087317U (en) | Mechanism and plant protection unmanned aerial vehicle are prevented swinging by medical kit | |
| CN109613502A (en) | It is a kind of for assembling the low scattering shell of two-dimensional nozzle engine | |
| CN107436219A (en) | A kind of unconventional distribution form intake and exhaust pipeline device | |
| CN206782094U (en) | A kind of discharge opeing dome structure for aircraft APU fuel feed pumps | |
| CN108216577A (en) | A kind of safety structure of aircraft flap connector connection | |
| CN104908958A (en) | Wing fuel tank | |
| CN107150813A (en) | A kind of discharge opeing dome structure for aircraft APU fuel feed pumps | |
| CN105059555B (en) | Oil tank assembly oil leading devices and airplane with same | |
| CN203889051U (en) | Drainage structure of airplane cabin door | |
| US20190168886A1 (en) | Fuel tank with suction system | |
| CN207089668U (en) | A kind of unmanned plane fuel tank | |
| RU2548200C2 (en) | Supersonic aircraft | |
| CN207683788U (en) | A kind of unmanned sump of stand alone type and unmanned plane | |
| CN212535863U (en) | Aircraft engine lubricating oil tank | |
| CN206202702U (en) | Aircraft APU fuel feed pump discharge opeing radome fairings | |
| CN209305864U (en) | A kind of soft tank for jet-propelled unmanned plane | |
| CN206231628U (en) | Unmanned aircraft parachute descent device | |
| CN106218905A (en) | Unmanned plane integral wing tank | |
| CN207607659U (en) | A kind of aircraft refuelling pipe | |
| CN204688426U (en) | Wing tank | |
| BR102017007465B1 (en) | FUEL COLLECTOR | |
| CN103167966A (en) | Anti-cross flow fuel vent system architecture | |
| JP6828494B2 (en) | Hopper shatterproof method and equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20180614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |