CN104975983B - A kind of binary contracting nozzle - Google Patents
A kind of binary contracting nozzle Download PDFInfo
- Publication number
- CN104975983B CN104975983B CN201510398898.7A CN201510398898A CN104975983B CN 104975983 B CN104975983 B CN 104975983B CN 201510398898 A CN201510398898 A CN 201510398898A CN 104975983 B CN104975983 B CN 104975983B
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- CN
- China
- Prior art keywords
- side wall
- sliding panel
- guide groove
- fixed plate
- guide rail
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Abstract
The present invention relates to Aeroengine Design field, and in particular to a kind of design of aero-engine binary contracting nozzle, it is characterised in that：Including cylinder (1), side wall (2), fixed plate (3), sliding panel (4), wherein, sliding panel (4) can slide back and forth along fixed plate (3), so as to realize the regulation of throat area.The present invention has simple in construction, the advantages of higher discharge coefficient being maintained while the regulation of nozzle throat area is realized, the design of aero-engine two-dimensional nozzle is can be applied to, while is also applied for aero-engine or the airspace engine design field with similar functions.
Description
Technical field
The present invention relates to Aeroengine Design field, and in particular to a kind of aero-engine binary contracting nozzle is set
Meter.
Background technology
Binary contracting nozzle has broad application prospects in aero-engine, and the regulation of its throat area is main at present
Realized by the rotation for restraining adjustment sheet, in this process, the convergency meeting respective change of converging portion, so as to influence jet pipe
Discharge coefficient, discharge coefficient is set to be difficult to maintain always in higher state.Existing two-dimensional nozzle converging portion controlling organization is mostly to shake
Arm adds connecting rod mode or regulation ring adds connecting rod mode, and this mechanism is complicated, and number of parts is more, and installation is complicated, is unfavorable for
Maintenance.
The content of the invention
The purpose of the present invention is：There is provided a kind of can maintain higher discharge coefficient while throat area regulation is realized
And binary contracting nozzle simple and reliable for structure.
The technical scheme is that：A kind of binary contracting nozzle is provided, comprising cylinder 1, side wall 2, fixed plate 3 and slided
Plate 4, it is characterised in that：The quantity of cylinder 1 is 1, and its import is circle, is exported to be square, middle even transition；The side
The quantity of wall 2 is 2, is symmetrical arranged at left and right sides of jet pipe, and is fastenedly connected on cylinder 1, and it is symmetrically arranged with guide rail up and down
Groove A, guide groove A central plane are parallel with the mating surface of fixed plate 3 and sliding panel 4；The quantity of fixed plate 3 is 2, is being sprayed
Pipe is symmetrical arranged both sides up and down, and the shape of upper and lower fixing plate 3 is in an angle, and its front end is fastenedly connected on cylinder 1；The cunning
The dynamic quantity of plate 4 is 2, and both sides are symmetrical arranged above and below jet pipe, and its left and right sides is symmetrically arranged with guide rail B, guide rail B and side wall 2
On guide groove A coordinate, both form sliding pair.
Alternatively, the guide groove A quantity in the side wall 2 is 2,4,6,8 or 10, and guide groove is in side wall
2 arrangements symmetrical above and below, the quantity of the guide rail B on the sliding panel 4 is identical with the guide groove A in side wall 2, and is symmetrically distributed in cunning
The both ends of dynamic plate 4.
Alternatively, the cross section of the guide rail B on the sliding panel 4 could be arranged to rectangle or circle, corresponding rectangle
The length of side or circle diameter must be combined together with guide groove.
Alternatively, the guide groove A in the side wall 2 is elongated rectangular shape groove.
Under external force driving, sliding panel 4 can slide back and forth along fixed plate 3, so as to realize the regulation of nozzle throat area.
It is an advantage of the invention that：It is simple and reliable for structure, while throat area regulation is realized jet pipe can be made to keep higher
Discharge coefficient, meet the needs of engine different working condition.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the sectional view of the present invention；
Fig. 3 is the schematic diagram of side wall 2；
Fig. 4 is the schematic diagram of sliding panel 4.
Wherein：1-cylinder, 2-side wall, 3-fixed plate, 4-sliding panel, A-guide groove, B-guide rail
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent identical key element.
As depicted in figs. 1 and 2, a kind of binary contracting nozzle provided by the invention, includes cylinder 1, side wall 2, fixed plate 3
And sliding panel 4, it is characterised in that：The quantity of cylinder 1 is 1, and its import is circle, is exported to be square, middle even transition；
The quantity of side wall 2 is 2, is symmetrical arranged at left and right sides of jet pipe, and be bolted to connection on cylinder 1, above and below it
Guide groove A is symmetrically arranged with, guide groove A central plane is parallel with the mating surface of fixed plate 3 and sliding panel 4；The fixed plate 3
Quantity is 2, and both sides are symmetrical arranged above and below jet pipe, and the shape of upper and lower fixing plate 3 is in an angle, and its front end is consolidated by bolt
Surely it is connected on cylinder 1；The quantity of sliding panel 4 is 2, and both sides are symmetrical arranged above and below jet pipe, and its left and right sides is symmetrically set
It is equipped with guide rail B, the guide groove A on guide rail B and side wall 2 coordinates, and both form sliding pair.
Guide groove A quantity in the side wall 2 is 2, and guide groove is arranged symmetrically down on the side wall 2, the sliding panel 4
On guide rail B quantity it is identical with the guide groove A in side wall 2, and be symmetrically distributed in the both ends of sliding panel 4.
Guide rail B on the sliding panel 4 could be arranged to rectangle.
Guide groove A in the side wall 2 is elongated rectangular shape groove.
Under external force driving, sliding panel 4 can slide back and forth along fixed plate 3, so as to realize the regulation of nozzle throat area.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should using the scope of the claims as
It is accurate.
Claims (4)
1. a kind of binary contracting nozzle, including cylinder (1), side wall (2), fixed plate (3) and sliding panel (4), it is characterised in that：Institute
Cylinder (1) quantity is stated as 1, its import is circle, is exported to be square, middle even transition；Side wall (2) quantity is 2,
It is symmetrical arranged, and is fastenedly connected on cylinder (1) at left and right sides of jet pipe, it is symmetrically arranged with guide groove (A), guide groove up and down
(A) central plane is parallel with the mating surface of fixed plate (3) and sliding panel (4)；Fixed plate (3) quantity is 2, in jet pipe
Upper and lower both sides are symmetrical arranged, and upper and lower fixing plate (3) shape is in an angle, and its front end is fastenedly connected on cylinder (1)；It is described
Sliding panel (4) quantity is 2, and both sides are symmetrical arranged above and below jet pipe, and its left and right sides is symmetrically arranged with guide rail (B), guide rail (B)
Coordinate with the guide groove (A) in side wall (2), both form sliding pair.
2. binary contracting nozzle according to claim 1, it is characterised in that：Guide groove (A) quantity on the side wall (2)
For 2,4,6,8 or 10, guide rail (B) of the guide groove in side wall (2) arrangement symmetrical above and below, the sliding panel (4)
Quantity it is identical with the guide groove (A) in side wall (2), and be symmetrically distributed in the both ends of sliding panel (4).
3. binary contracting nozzle according to claim 1, it is characterised in that：Guide groove (A) on the side wall (2) is length
Bar rectangular recess.
4. binary contracting nozzle according to claim 1, it is characterised in that：The horizontal stroke of guide rail (B) on the sliding panel (4)
Section could be arranged to rectangle or circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398898.7A CN104975983B (en) | 2015-07-09 | 2015-07-09 | A kind of binary contracting nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398898.7A CN104975983B (en) | 2015-07-09 | 2015-07-09 | A kind of binary contracting nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104975983A CN104975983A (en) | 2015-10-14 |
| CN104975983B true CN104975983B (en) | 2017-12-12 |
Family
ID=54272850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510398898.7A Active CN104975983B (en) | 2015-07-09 | 2015-07-09 | A kind of binary contracting nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104975983B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104971A (en) * | 2017-12-07 | 2018-06-01 | 中国航发沈阳发动机研究所 | A kind of two-dimensional nozzle with pitching driftage function and the aircraft with it |
| CN112295803B (en) * | 2020-09-25 | 2022-04-26 | 中国空气动力研究与发展中心低速空气动力研究所 | Jet device with continuously adjustable nozzle height |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978071A (en) * | 1989-04-11 | 1990-12-18 | General Electric Company | Nozzle with thrust vectoring in the yaw direction |
| US5115979A (en) * | 1991-05-28 | 1992-05-26 | General Electric Company | Conforming plunger seal assembly |
| US7568348B2 (en) * | 2005-11-28 | 2009-08-04 | Aerojet-General Corporation | Nozzle assembly for rocket and ramjet applications |
| US7793504B2 (en) * | 2006-05-04 | 2010-09-14 | Rolls-Royce Corporation | Nozzle with an adjustable throat |
| CN103696879B (en) * | 2013-12-05 | 2016-08-17 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of binary plug vector spray |
-
2015
- 2015-07-09 CN CN201510398898.7A patent/CN104975983B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104975983A (en) | 2015-10-14 |
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