CN114313280A - Fuel oil diffuser - Google Patents
Fuel oil diffuser Download PDFInfo
- Publication number
- CN114313280A CN114313280A CN202210018338.4A CN202210018338A CN114313280A CN 114313280 A CN114313280 A CN 114313280A CN 202210018338 A CN202210018338 A CN 202210018338A CN 114313280 A CN114313280 A CN 114313280A
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- Prior art keywords
- base
- straight
- diffuser
- fuel
- hole
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- 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.)
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- 239000000295 fuel oil Substances 0.000 title abstract description 17
- 238000009792 diffusion process Methods 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 239000000446 fuel Substances 0.000 claims description 33
- 230000007704 transition Effects 0.000 claims description 4
- 239000002828 fuel tank Substances 0.000 description 11
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Fuel-Injection Apparatus (AREA)
Abstract
The invention discloses a fuel oil diffuser, comprising: the base is provided with a through hole; the straight-through sealing head is arranged on the base, a cavity is arranged inside the straight-through sealing head, and the through hole is communicated with the cavity; the diffusion pipes are uniformly distributed on the through seal head and communicated with the cavity inside the through seal head, and the inner diameters of the diffusion pipes are larger than those of the through holes. The fuel oil diffuser can reduce the flow rate of fuel oil entering a fuel oil tank, and achieves the purposes of reducing impact on components and eliminating electrostatic hidden danger.
Description
Technical Field
The invention belongs to the field of aviation components, and particularly relates to a fuel diffuser.
Background
When the aircraft is filled with fuel under pressure, the flow rate of the fuel flowing into the fuel tank through the fuel pipeline is generally high, so that the fuel tank internal components are often impacted, and meanwhile, electrostatic danger can be brought because the flow rate of the fuel is too high.
It is therefore desirable to develop a fuel diffuser that reduces the flow rate of fuel entering the fuel tank, reducing the impact on components and eliminating the potential for static electricity.
Disclosure of Invention
The invention aims to provide a fuel diffuser which reduces the speed of fuel entering a fuel tank and enables the fuel to enter the fuel tank uniformly.
In order to achieve the above object, the present invention provides a fuel diffuser including:
the base is provided with a through hole;
the straight-through sealing head is arranged on the base, a cavity is arranged inside the straight-through sealing head, and the through hole is communicated with the cavity;
the diffusion pipes are uniformly distributed on the through seal head and communicated with the cavity inside the through seal head, and the inner diameter of each diffusion pipe is larger than that of each through hole.
Optionally, the straight-through end enclosure is cylindrical, the top end of the straight-through end enclosure is closed, and the bottom end of the straight-through end enclosure is connected to the base and is coaxial with the through hole in the base;
the plurality of diffusion pipes are uniformly distributed on the side face of the straight-through seal head along the circumferential direction of the straight-through seal head, and the axes of the plurality of diffusion pipes extend along the radial direction of the straight-through seal head.
Optionally, the base includes a bottom plate and a cylindrical body disposed on the bottom plate, and the through hole penetrates through the cylindrical body and the bottom plate along an axis of the cylindrical body.
Optionally, the outer wall of the cylindrical main body is provided with a first external thread, the inner wall of the bottom end of the through seal head is provided with an internal thread, and the through seal head is installed on the base through the matching of the internal thread and the first external thread.
Optionally, the inner diameter of the through seal head is larger than the diameter of the through hole in the base.
Optionally, a plurality of threaded holes are formed in the straight-through end socket, second external threads are formed in the outer wall of one end of each diffusion pipe, and each diffusion pipe is installed in one threaded hole through the second external threads.
Optionally, the diffusion pipe is trumpet-shaped and comprises a small-diameter section, a transition section and a large-diameter section which are connected in sequence, and the free end of the small-diameter section is connected to the through sealing head;
optionally, the inner diameter of the large diameter section of the diffuser pipe is larger than the diameter of the through hole on the base.
Optionally, the base is used for connecting a fuel pipeline, and the through hole in the base is communicated with the fuel pipeline.
The invention has the beneficial effects that: when the fuel oil diffuser is adopted for refueling an airplane, fuel oil flows through the through seal head from the base and finally flows out of the diffusion pipe to enter the fuel tank, the flow rate is obviously reduced, the impact on internal components of the fuel tank is avoided, and static electricity is prevented from being generated; the diffusion pipes are uniformly distributed on the straight-through sealing head, so that fuel in the straight-through sealing head can uniformly flow outwards in multiple directions, the fuel can be uniformly sprayed into the fuel tank, and local aggregation is avoided.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a perspective view of a fuel diffuser according to an embodiment of the present invention.
FIG. 2 illustrates a front view of a fuel diffuser according to one embodiment of the present invention.
Fig. 3 shows a cross-sectional view a-a of fig. 2.
Description of the reference numerals
1. A base; 2. directly connecting an end enclosure; 3. a diffuser tube.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
The invention discloses a fuel oil diffuser, comprising:
the base is provided with a through hole;
the straight-through sealing head is arranged on the base, a cavity is arranged inside the straight-through sealing head, and the through hole is communicated with the cavity;
the diffusion pipes are uniformly distributed on the through seal head and communicated with the cavity inside the through seal head, and the inner diameters of the diffusion pipes are larger than those of the through holes.
Specifically, when the fuel oil diffuser disclosed by the invention is used for refueling an airplane, fuel oil flows through the through seal head from the base and finally flows out of the diffuser pipe to enter the fuel tank, the flow rate is obviously reduced, the impact on internal components of the fuel tank is avoided, and the generation of static electricity is prevented; the diffusion pipes are uniformly distributed on the straight-through sealing head, so that fuel in the straight-through sealing head can uniformly flow outwards in multiple directions, the fuel can be uniformly sprayed into the fuel tank, and local aggregation is avoided.
As an alternative scheme, the straight-through sealing head is cylindrical, the top end of the straight-through sealing head is closed, and the bottom end of the straight-through sealing head is connected to the base and is coaxial with the through hole in the base;
the plurality of diffusion pipes are uniformly distributed on the side face of the straight-through seal head along the circumferential direction of the straight-through seal head, and the axes of the plurality of diffusion pipes extend along the radial direction of the straight-through seal head.
As an alternative, the base comprises a bottom plate and a cylindrical main body arranged on the bottom plate, and the through hole penetrates through the cylindrical main body and the bottom plate along the axis of the cylindrical main body.
As an alternative scheme, a first external thread is arranged on the outer wall of the cylindrical main body, an internal thread is arranged on the inner wall at the bottom end of the through seal head, and the through seal head is installed on the base through the matching of the internal thread and the first external thread.
Alternatively, the inner diameter of the through end socket is larger than the diameter of the through hole in the base.
As an alternative, a plurality of threaded holes are formed in the straight-through end socket, second external threads are formed in the outer wall of one end of each diffusion pipe, and each diffusion pipe is installed in one threaded hole through the second external threads.
As an alternative, the diffusion pipe is horn-shaped and comprises a small-diameter section, a transition section and a large-diameter section which are sequentially connected, and the free end of the small-diameter section is connected to the through sealing head;
alternatively, the large diameter section of the diffuser pipe has an inner diameter larger than the diameter of the through hole in the base.
As an alternative, the base is used for connecting a fuel pipeline, and the through hole in the base is communicated with the fuel pipeline.
Examples
As shown in fig. 1 to 3, the fuel diffuser of the present embodiment includes a base 1, a straight-through head 2, and four diffuser pipes 3.
The base 1 comprises a bottom plate and a cylindrical main body arranged on the bottom plate, the through hole penetrates through the cylindrical main body and the bottom plate along the axis of the cylindrical main body, and first external threads are arranged on the outer wall of the cylindrical main body;
the straight-through end enclosure 2 is cylindrical, the top end of the straight-through end enclosure 2 is closed, an internal thread is arranged on the inner wall of the bottom end of the straight-through end enclosure 2, the straight-through end enclosure 2 is arranged on the base 1 through the matching of the internal thread and the first external thread, one end of a through hole in the base 1 is communicated and coaxial with the inside of the straight-through end enclosure 2, and the outer diameter of the straight-through end enclosure 2 is equal to that of the cylindrical main body, so that the occupied space is reduced; the inner diameter of the straight-through end socket 2 is larger than the diameter of the through hole so as to initially reduce the flow rate of fuel oil; four threaded holes are uniformly distributed on the side wall of the through seal head 2 along the circumferential direction of the through seal head;
the diffusion pipes 3 are horn-shaped and comprise a small-diameter section, a transition section and a large-diameter section which are sequentially connected, second external threads are arranged on the outer wall of the small-diameter section, each diffusion pipe 3 is arranged in one threaded hole through the second external threads, and the axis of each diffusion pipe 3 extends along the radial direction of the through seal head 2; the four diffusion pipes 3 are uniformly distributed on the straight-through end socket 2 along the circumferential direction, so that fuel oil uniformly flows out in multiple directions, the fuel oil is uniformly sprayed outwards, and local aggregation is avoided; the inner diameter of the large-diameter section of each diffusion pipe 3 is larger than the diameter of the through hole on the base 1, so the sum of the sectional areas of the inner diameters of the outlet sections of the four diffusion pipes 3 is far larger than the sectional area of the inner diameter of the through hole of the base 1, and the flow rate of fuel oil is further reduced.
The operation flow is as follows:
1. the straight-through end socket 2 and the four diffusion pipes 3 are respectively connected by screw threads;
2. the assembly body with leading to head 2 and diffusion tube 3 is installed on base 1, and base 1 connects in the fuel oil pipeline.
The fuel oil can flow into the straight-through seal head 2 from the through hole on the base 1 rapidly, and then flows out from the four diffusion pipes 3 at a slower speed.
In the invention, the structures of the base 1, the through seal head 2 and the diffusion pipes 3 can be properly adjusted according to actual working conditions, the connection mode among the base 1, the through seal head 2 and the diffusion pipes 3 can be replaced by other connection modes such as welding and the like, the number of the diffusion pipes 3 can be changed, and the change is within the protection scope of the invention.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (9)
1. A fuel diffuser, comprising:
the base is provided with a through hole;
the straight-through sealing head is arranged on the base, a cavity is arranged inside the straight-through sealing head, and the through hole is communicated with the cavity;
the diffusion pipes are uniformly distributed on the through seal head and communicated with the cavity inside the through seal head, and the inner diameter of each diffusion pipe is larger than that of each through hole.
2. The fuel diffuser of claim 1 wherein said straight through end cap is cylindrical, said straight through end cap having a closed top end and a closed bottom end connected to said base and coaxial with said through hole in said base;
the plurality of diffusion pipes are uniformly distributed on the side face of the straight-through seal head along the circumferential direction of the straight-through seal head, and the axes of the plurality of diffusion pipes extend along the radial direction of the straight-through seal head.
3. The fuel diffuser of claim 2, wherein said base includes a bottom plate and a cylindrical body disposed on said bottom plate, said through hole extending through said cylindrical body and said bottom plate along an axis of said cylindrical body.
4. The fuel diffuser of claim 3, wherein the outer wall of the cylindrical body has first external threads, the inner wall of the bottom end of the through head has internal threads, and the through head is mounted to the base by the cooperation of the internal threads and the first external threads.
5. The fuel diffuser of claim 2, wherein an inner diameter of said feed-through head is greater than a diameter of said through-hole in said base.
6. The fuel diffuser of claim 1, wherein said straight-through end cap has a plurality of threaded holes, said diffuser pipe has a second external thread on an outer wall at one end thereof, and each of said diffuser pipes is mounted in one of said threaded holes by said second external thread.
7. The fuel diffuser of claim 1, wherein said diffuser is flared including a small diameter section, a transition section, and a large diameter section connected in series, the free end of said small diameter section being connected to said flow-through closure.
8. The fuel diffuser of claim 7, wherein the large diameter section of the diffuser pipe has an inner diameter greater than the diameter of the through hole in the base.
9. The fuel diffuser of claim 1, wherein said base is adapted to be connected to a fuel line, and wherein said base includes a through hole in communication with said fuel line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210018338.4A CN114313280A (en) | 2022-01-07 | 2022-01-07 | Fuel oil diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210018338.4A CN114313280A (en) | 2022-01-07 | 2022-01-07 | Fuel oil diffuser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114313280A true CN114313280A (en) | 2022-04-12 |
Family
ID=81024479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210018338.4A Pending CN114313280A (en) | 2022-01-07 | 2022-01-07 | Fuel oil diffuser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114313280A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221122A (en) * | 2001-01-22 | 2002-08-09 | Usui Internatl Ind Co Ltd | Fuel delivery pipe |
| CN108730089A (en) * | 2018-06-25 | 2018-11-02 | 南京世界村汽车动力有限公司 | A kind of engine nozzle |
| CN109808902A (en) * | 2018-12-27 | 2019-05-28 | 南京航空航天大学 | A kind of method for arranging of aircraft fuel oil diffuser and pressure-regulating device |
| CN111720217A (en) * | 2020-06-12 | 2020-09-29 | 西北工业大学 | Self-adaptive low-pressure fuel oil distributor for multi-pipe pulse detonation combustor |
| CN216834307U (en) * | 2022-01-07 | 2022-06-28 | 彩虹无人机科技有限公司 | Fuel oil diffuser |
-
2022
- 2022-01-07 CN CN202210018338.4A patent/CN114313280A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221122A (en) * | 2001-01-22 | 2002-08-09 | Usui Internatl Ind Co Ltd | Fuel delivery pipe |
| CN108730089A (en) * | 2018-06-25 | 2018-11-02 | 南京世界村汽车动力有限公司 | A kind of engine nozzle |
| CN109808902A (en) * | 2018-12-27 | 2019-05-28 | 南京航空航天大学 | A kind of method for arranging of aircraft fuel oil diffuser and pressure-regulating device |
| CN111720217A (en) * | 2020-06-12 | 2020-09-29 | 西北工业大学 | Self-adaptive low-pressure fuel oil distributor for multi-pipe pulse detonation combustor |
| CN216834307U (en) * | 2022-01-07 | 2022-06-28 | 彩虹无人机科技有限公司 | Fuel oil diffuser |
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