CN106762219A - A kind of new-type binary plug nozzle - Google Patents
A kind of new-type binary plug nozzle Download PDFInfo
- Publication number
- CN106762219A CN106762219A CN201710051008.4A CN201710051008A CN106762219A CN 106762219 A CN106762219 A CN 106762219A CN 201710051008 A CN201710051008 A CN 201710051008A CN 106762219 A CN106762219 A CN 106762219A
- Authority
- CN
- China
- Prior art keywords
- cone
- center
- plug
- new
- type binary
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/78—Other construction of jet pipes
- F02K1/82—Jet pipe walls, e.g. liners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
- F02K1/78—Other construction of jet pipes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The present invention provides a kind of new-type binary plug nozzle, including supporting member, cone, blender (5), supporting member is by cylinder (1), circle turns square changeover portion (2), jet area contraction section (3) import that head and the tail docking is constituted successively is the cylindrical member of rectangle for round exit, blender (5) is the annular component being socketed on the axis of supporting member inner chamber, cone is the double-layer thin wall component being socketed on blender (5) inner ring axis, cone is bored by wedge plug, and the section docked with wedge plug cone is the center cone composition of annular, supporting construction is provided between the thin-walled of center cone two.New-type binary plug nozzle provided by the present invention, center cone and plug cone integrated design, whole aerodynamic flow path transition is smooth, aerodynamic loss is small, blocking completely for engine interior high-temperature component can be realized, with good stealth capabilities, while having concurrently, simple structure, length is short, lightweight advantage.
Description
Technical field
The invention belongs to aero-engine field, and in particular to a kind of new-type binary plug nozzle.
Background technology
Traditional binary plug nozzle design fails to realize stream in whole jet pipe using inner cone and plug cone independent design technology
Field continuous uniform distribution, aeroperformance is poor, while bad to the occlusion effect of engine interior high-temperature component so that infrared hidden
Body and radar invisible effect are poor.The curved two-dimensional nozzles of the uncontrollable S of fixation import and export axis and there is certain difference in height, have
There is a good Stealth Fighter, but there is a problem of that length is long, weight is big.
The content of the invention
It is an object of the invention to provide a kind of new-type binary plug nozzle, at least one of prior art is overcome or alleviated by
Drawbacks described above.
The purpose of the present invention is achieved through the following technical solutions：A kind of new-type binary plug nozzle, including supporting member, cone
Body, blender,
The supporting member is to turn square changeover portion, jet area contraction section by cylinder, circle to dock the import for constituting from beginning to end successively and be
Round exit is the cylindrical member of rectangle, wherein, cylinder one end is connected with engine, and the cylinder other end turns square changeover portion by circle
Connection prismatic table shape jet area contraction section, circle turns square changeover portion and the cross sectional shape of supporting member is changed into rectangle from circle；
The blender is the annular component being socketed on the axis of supporting member inner chamber, and the annular component end face with
Turbine rear casing framework is connected；
The cone is the double-layer thin wall component being socketed on blender inner ring axis, the cone bored by wedge plug and
The section that one end is connected with the wedge plug cone docking other end with turbine rear casing framework is the center cone composition of annular, its
In, cavity one end that the wedge plug is bored between two thin-walleds comes together in and closed at one, the cavity phase between the other end and the thin-walled of center cone two
Insertion, wherein, it is provided with supporting construction between the thin-walled of center cone two.
Preferably, in the cone the center cone and wedge plug cone integrated molding.
Preferably, the center cone is bored with the wedge plug by changeover portion and is connected, the section transitions shape of the changeover portion
Formula is circular, rectangle or ellipse.
Preferably, the center cone includes the center cone outer wall being connected with turbine rear casing framework and is socketed in this
The center conical inner surface of center cone outer wall inner chamber, wherein, the center conical inner surface is connected by support plate with the center cone outer wall；The wedge
Shape plug cone includes the plug cone outer wall docked with center cone outer wall and the plug conical inner surface docked with center conical inner surface.
Preferably, the quantity of the support plate is 2~18, and the plurality of support plate is circumferentially distributed in the center cone
In cavity between wall and the center cone outer wall.
Preferably, the support plate is entity or hollow structure.
Preferably, the center conical inner surface and the center cone outer wall are by welding or bolt and the support plate phase
Even.
Preferably, the jet area contraction section outlet is zigzag.
Preferably, the ratio of width to height of the jet area contraction section square-section is 2~12.
Preferably, the blender is lobed mixer, zigzag blender or adjustability blender.
A kind of beneficial effect of new-type binary plug nozzle provided by the present invention is that inner cone and plug cone integration set
Meter, whole aerodynamic flow path transition is smooth, and aerodynamic loss is small, it is possible to achieve blocking completely for engine interior high-temperature component, has
Good stealth capabilities, while having concurrently, simple structure, length is short, lightweight advantage.
Brief description of the drawings
Fig. 1 is the structural representation of new-type binary plug nozzle of the invention；
Fig. 2 is the sectional view of new-type binary plug nozzle of the invention；
Fig. 3 is the front view of new-type binary plug nozzle of the invention；
Fig. 4 is the structural representation that cone is filled in new-type binary plug nozzle of the invention；
Fig. 5 is the structural representation of center cone in new-type binary plug nozzle of the invention；
Fig. 6 is the structural representation of blender in new-type binary plug nozzle of the invention.
Reference：
1- cylinders, 2- circles turn square changeover portion, 3- jet area contractions section, 4- plug cones outer wall, 5- blenders, 6- support plates, 7- centers
Conical inner surface, 8- center cones outer wall, 9- plug conical inner surfaces.
Specific embodiment
To make the purpose, technical scheme and advantage of present invention implementation clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from start to finish or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than whole embodiments.Embodiment below with reference to Description of Drawings is exemplary, it is intended to used
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
New-type binary plug nozzle of the invention is described in further details below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of new-type binary plug nozzle, including supporting member, cone, blender 5, support structure
Part is to turn square changeover portion 2, jet area contraction section 3 by cylinder 1, circle to dock the import for constituting from beginning to end successively for round exit is rectangle
Cylindrical member, one end of cylinder 1 is connected with engine, and used as the supporting member of whole jet pipe, the other end of cylinder 1 turns square mistake by circle
The connection prismatic table shape jet area contraction of section 2 section 3 is crossed, circle turns square changeover portion 2 and the cross sectional shape of supporting member is changed into rectangle from circle, its
In, jet area contraction 3 square-section areas of section progressively diminish along the direction away from cylinder 1, the ratio of width to height selection of the square-section
It is 2~12, and jet area contraction section 3 exit ends selection zigzag.
As shown in figures 1 to 6, blender 5 is to be socketed in annular component on the axis of supporting member inner chamber, and the ring-type
Component is connected by the installation side on end face with turbine rear casing framework, and the blender 5 can strengthen outer culvert and intension is cold and hot
The blending of air-flow, blender 5 can select according to specific needs lobed mixer, zigzag blender, annular mixer and
The blender of the forms such as adjustability blender.
As shown in Figures 2 and 3, cone is the double-layer thin wall component being socketed on the inner ring axis of blender 5, and the cone is by wedge
The section that shape plug is bored and one end is connected with the wedge plug cone docking other end with turbine rear casing framework is the center of annular
Cone is constituted.Center cone and wedge plug cone in the present embodiment is bored using integrated design shaping in center cone and wedge plug
Between be provided with changeover portion so that the cone of integrated design is transitioned into other shapes section by circular cross-section, the changeover portion
Section transitions form can select the cone of the shapes such as circle, rectangle, ellipse, this kind of form can to make whole nozzle interior field
It is evenly distributed continuous, while jet pipe length can be shortened again, mitigates weight.
The center cone of double-decker includes the center cone outer wall 8 being connected with turbine rear casing framework and is socketed in this
The center conical inner surface 7 of heart cone outer wall 8 inner chamber, the center conical inner surface 7 is connected by support plate 6 with the center cone outer wall 8, wherein, branch
Type of attachment between plate 6 and center conical inner surface 7 and center cone outer wall 8 can select bolt connection or welding, the support plate 6
Quantity can select 2~18, and the circumferential sky being distributed between center conical inner surface 7 and center cone outer wall 8 of the plurality of support plate 6
(see shown in Fig. 3 and Fig. 5) in chamber, while support plate 6 can as needed select entity or hollow structure.Wedge plug cone include with
The plug cone outer wall 4 of the docking of center cone outer wall 8 and the plug conical inner surface 9 (see shown in Fig. 2 and Fig. 4) docked with center conical inner surface 7, its
In, plug cone outer wall 4 can be realized blocking completely to the high-temperature component of engine interior.Sky between inside and outside two thin-walleds of wedge plug cone
Chamber one end comes together in and closed at one, and the cavity inside and outside the other end and center cone between two thin-walleds connects, as shown in Figure 2, center cone
The cavity between cavity, plug conical inner surface 9 and plug cone outer wall 4 between inwall 7 and center cone outer wall 8 forms air collecting chamber, by drawing
Enter cold airflow to center cone and the row cooling of plug coning, its surface temperature is reduced, with preferable infrared stealth effect.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of the claims
It is accurate.
Claims (10)
1. a kind of new-type binary plug nozzle, it is characterised in that including supporting member, cone, blender (5),
The supporting member is by entering that cylinder (1), the square changeover portion (2) of circle turn, jet area contraction section (3) successively head and the tail docking are constituted
Mouth is the cylindrical member of rectangle for round exit, wherein, cylinder (1) one end is connected with engine, and cylinder (1) other end is by circle
Turn square changeover portion (2) connection prismatic table shape jet area contraction section (3), circle turns square changeover portion (2) by the cross sectional shape of supporting member by justifying
Shape is changed into rectangle；
The blender (5) is the annular component being socketed on the axis of supporting member inner chamber, and the annular component end face with
Turbine rear casing framework is connected；
The cone is the double-layer thin wall component being socketed on blender (5) inner ring axis, and the cone is bored by wedge plug, Yi Jiyi
The section being connected with turbine rear casing framework with the wedge plug cone docking other end is held for the center cone of annular is constituted, wherein,
Cavity one end that the wedge plug is bored between two thin-walleds is come together in and closed at one, and the cavity between the other end and the thin-walled of center cone two is mutually passed through
It is logical, wherein, it is provided with supporting construction between the thin-walled of center cone two.
2. new-type binary plug nozzle according to claim 1, it is characterised in that the center cone in the cone and
The wedge plug bores integrated molding.
3. new-type binary plug nozzle according to claim 1, it is characterised in that the center cone passes through changeover portion and institute
State wedge plug cone to be connected, the section transitions form of the changeover portion is circular, rectangle or ellipse.
4. new-type binary plug nozzle according to claim 1, it is characterised in that the center cone include and turbine after machine
The connected center cone outer wall (8) of casket framework and the center conical inner surface (7) of center cone outer wall (8) inner chamber is socketed in, wherein,
The center conical inner surface (7) is connected by support plate (6) with the center cone outer wall (8)；The wedge plug cone includes and center cone outer wall
(8) plug of docking bores outer wall (4) and the plug conical inner surface (9) docked with center conical inner surface (7).
5. new-type binary plug nozzle according to claim 4, it is characterised in that the quantity of the support plate (6) is 2~18
It is individual, and the plurality of support plate (6) is circumferentially distributed on the cavity between the center conical inner surface (7) and the center cone outer wall (8)
It is interior.
6. new-type binary plug nozzle according to claim 2, it is characterised in that the support plate (6) for entity or in
Hollow structure.
7. new-type binary plug nozzle according to claim 2, it is characterised in that the center conical inner surface (7) and institute
Center cone outer wall (8) is stated to be connected with the support plate (6) by welding or bolt.
8. new-type binary plug nozzle according to claim 1, it is characterised in that jet area contraction section (3) outlet is
Zigzag.
9. new-type binary plug nozzle according to claim 1, it is characterised in that described jet area contraction section (3) rectangle cuts
The ratio of width to height in face is 2~12.
10. new-type binary plug nozzle according to claim 1, it is characterised in that the blender (5) is lobe mixing
Device, zigzag blender or adjustability blender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051008.4A CN106762219B (en) | 2017-01-23 | 2017-01-23 | A kind of new-type binary plug nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710051008.4A CN106762219B (en) | 2017-01-23 | 2017-01-23 | A kind of new-type binary plug nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762219A true CN106762219A (en) | 2017-05-31 |
| CN106762219B CN106762219B (en) | 2019-03-22 |
Family
ID=58942302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710051008.4A Active CN106762219B (en) | 2017-01-23 | 2017-01-23 | A kind of new-type binary plug nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762219B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757216A (en) * | 2018-07-10 | 2018-11-06 | 西北工业大学 | A kind of petal-shaped noise reduction D-shaped vector spray |
| CN108894891A (en) * | 2018-07-10 | 2018-11-27 | 西北工业大学 | A kind of deformable noise reduction D-shaped vector spray |
| CN109339975A (en) * | 2018-11-02 | 2019-02-15 | 中国航空工业集团公司西安飞机设计研究所 | A kind of stealthy exhaust pipe of the adjustable cone-shaped cavity of band |
| CN109372653A (en) * | 2018-12-13 | 2019-02-22 | 中国航发沈阳发动机研究所 | A kind of fanjet noise-reducing exhaust component |
| CN110805501A (en) * | 2019-10-16 | 2020-02-18 | 南京航空航天大学 | A Throat Offset Pneumatic Vectoring Nozzle with Internal S-Bend |
| CN113339156A (en) * | 2021-06-28 | 2021-09-03 | 西北工业大学 | Dual-bearing binary plug type thrust vectoring nozzle |
| CN114017202A (en) * | 2021-11-12 | 2022-02-08 | 中国航发沈阳发动机研究所 | Spray tube composite center cone connecting structure |
| CN115614177A (en) * | 2022-08-29 | 2023-01-17 | 中国航发四川燃气涡轮研究院 | Full-shielding mixing integrated casing |
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| US3710890A (en) * | 1971-09-27 | 1973-01-16 | Boeing Co | Aircraft engine noise suppression |
| US4137992A (en) * | 1976-12-30 | 1979-02-06 | The Boeing Company | Turbojet engine nozzle for attenuating core and turbine noise |
| US4240519A (en) * | 1979-07-02 | 1980-12-23 | United Technologies Corporation | Acoustical turbine engine tail pipe plug |
| CN203214189U (en) * | 2013-04-03 | 2013-09-25 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug type axial symmetry spray pipe central cone circulation adjustable cooling structure |
| CN104271894A (en) * | 2012-03-29 | 2015-01-07 | 赫拉克勒斯公司 | Integration of parts of an afterbody of an aircraft engine |
| CN104948343A (en) * | 2015-07-09 | 2015-09-30 | 中国航空工业集团公司沈阳发动机设计研究所 | Two-dimensional plug nozzle |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3710890A (en) * | 1971-09-27 | 1973-01-16 | Boeing Co | Aircraft engine noise suppression |
| US4137992A (en) * | 1976-12-30 | 1979-02-06 | The Boeing Company | Turbojet engine nozzle for attenuating core and turbine noise |
| US4240519A (en) * | 1979-07-02 | 1980-12-23 | United Technologies Corporation | Acoustical turbine engine tail pipe plug |
| CN104271894A (en) * | 2012-03-29 | 2015-01-07 | 赫拉克勒斯公司 | Integration of parts of an afterbody of an aircraft engine |
| CN203214189U (en) * | 2013-04-03 | 2013-09-25 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug type axial symmetry spray pipe central cone circulation adjustable cooling structure |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757216A (en) * | 2018-07-10 | 2018-11-06 | 西北工业大学 | A kind of petal-shaped noise reduction D-shaped vector spray |
| CN108894891A (en) * | 2018-07-10 | 2018-11-27 | 西北工业大学 | A kind of deformable noise reduction D-shaped vector spray |
| CN109339975A (en) * | 2018-11-02 | 2019-02-15 | 中国航空工业集团公司西安飞机设计研究所 | A kind of stealthy exhaust pipe of the adjustable cone-shaped cavity of band |
| CN109339975B (en) * | 2018-11-02 | 2020-09-22 | 中国航空工业集团公司西安飞机设计研究所 | Stealth exhaust pipe with adjustable conical cavity |
| CN109372653A (en) * | 2018-12-13 | 2019-02-22 | 中国航发沈阳发动机研究所 | A kind of fanjet noise-reducing exhaust component |
| CN110805501A (en) * | 2019-10-16 | 2020-02-18 | 南京航空航天大学 | A Throat Offset Pneumatic Vectoring Nozzle with Internal S-Bend |
| CN110805501B (en) * | 2019-10-16 | 2021-09-17 | 南京航空航天大学 | Throat offset type pneumatic thrust vectoring nozzle with inner S-shaped bend |
| CN113339156A (en) * | 2021-06-28 | 2021-09-03 | 西北工业大学 | Dual-bearing binary plug type thrust vectoring nozzle |
| CN114017202A (en) * | 2021-11-12 | 2022-02-08 | 中国航发沈阳发动机研究所 | Spray tube composite center cone connecting structure |
| CN115614177A (en) * | 2022-08-29 | 2023-01-17 | 中国航发四川燃气涡轮研究院 | Full-shielding mixing integrated casing |
| CN115614177B (en) * | 2022-08-29 | 2024-04-16 | 中国航发四川燃气涡轮研究院 | Full shielding blending integrated casing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762219B (en) | 2019-03-22 |
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