CN104791131A - Binary plug type jet pipe with adjustable throat area - Google Patents
Binary plug type jet pipe with adjustable throat area Download PDFInfo
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- CN104791131A CN104791131A CN201510152532.1A CN201510152532A CN104791131A CN 104791131 A CN104791131 A CN 104791131A CN 201510152532 A CN201510152532 A CN 201510152532A CN 104791131 A CN104791131 A CN 104791131A
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- cone
- throat area
- plug
- adjustable
- stage casing
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Abstract
The invention relates to the field of engine jet pipes, in particular to a binary plug type jet pipe with an adjustable throat area. The defect that in a common binary plug type pipe, a throat area is not adjustable is solved. The binary plug type jet pipe with the adjustable throat area is composed of a round square barrel body, a constriction section, a plug cone body, a linkage mechanism and an actuator cylinder. The front end of the round square barrel body is connected with an engine, and a jet pipe inner channel is formed by the constriction section and the plug cone body. The actuator cylinder drives plug cone middle sections through the linkage mechanism to achieve throat area adjusting. According to the binary plug jet pipe with the adjustable throat area, the structural mode of the common binary plug type jet pipe is guaranteed, the overall size is small, the structure is simple, the reliability is high, and the defect that in the common binary plug type pipe, the throat area is not adjustable is solved.
Description
Technical field
The present invention relates to engine jet pipe field, relate to the binary plug nozzle that a kind of throat area is adjustable.
Background technique
The development of sky and space plane causes the operating envelope scope of motor very broad, work Mach number is increasing, flying height is more and more higher, and the operating range of corresponding ejector exhaust pipe is also increasing, needs adjustable throat area to meet aeroperformance in broad operating envelope good.Binary plug nozzle has outer expansion, broad blow down ratio scope inner nozzle aeroperformance can be met good, and can engine hot parts be blocked, there is infrared stealth effect, but traditional aeroengine binary plug nozzle structure is fixed, the motor requirement that needs throat area is adjustable when change of state cannot be met, so in order to make up the uncontrollable defect of conventional binary plug nozzle throat area, a kind of structural type not affecting conventional binary plug nozzle need be designed, and there is the adjustable binary plug nozzle of throat area.
Summary of the invention
The object of the present invention is to provide the binary plug nozzle that a kind of throat area is adjustable, make up the nonadjustable defect of conventional binary plug nozzle.
The binary plug nozzle that a kind of throat area provided by the invention is adjustable, comprising:
Circle turns square tube body, and one end is connected with front end motor;
Converging portion, there is cavity, one end away from motor that described converging portion one end and described circle turn square tube body is connected, and described converging portion comprises two pieces vertically and the side panel be symmetrical set, and horizontal symmetrical is arranged on two blocks of convergence plates between two pieces of described side panels; Described side panel and described convergence plate form described inner chamber;
Plug cone, is arranged in described inner chamber, and described plug cone comprises front cone, plug cone stage casing and back cone, and the end that the close described circle that stage casing bored by described converging portion and described front cone and described plug turns square tube body forms convergent passage jointly;
Described plug cone stage casing by being arranged between described front cone and back cone perpendicular to the rotating shaft of described side panel, and is closely overlapped by smooth arc surface and described front cone and back cone;
Pressurized strut, one end and described circle turn square tube body and are connected;
Linkage mechanism, is connected with the other end of described pressurized strut, and described linkage mechanism is also connected with described rotating shaft the other end, described pressurized strut drive described axis of rotation by described linkage mechanism.
Alternatively, described plug cone stage casing is two, symmetrical up and down, the cross section in each described plug cone stage casing is similar to fan-shaped, comprise large and small two circular arcs, described rotating shaft is positioned at described two circular arc circle centre positions in described plug cone stage casing, and described rotating shaft is near described back cone, the orthodrome end in described plug cone stage casing is connected with described front cone, and the small arc-shaped end in described plug cone stage casing is connected with described back cone.
Alternatively, described pressurized strut is two, is symmetrically distributed on the two pieces of described side panels in left and right;
The described pressurized strut of the same side is connected with two ends of filling in the rotating shaft of boring stage casing by a described linkage mechanism.
Alternatively, described side panel has a fixing chute along jet pipe is axial arranged, and described linkage mechanism is slidably arranged in described fixing chute.
Alternatively, the symmetrical distribution of two described fixing chutes on two pieces of described side panels (9) is positioned at.
Alternatively, described back cone outer mold surface is curved surface or faces directly.
Alternatively, described front cone is fixedly connected with described side panel with back cone.
Alternatively, the binary plug nozzle that described throat area is adjustable also comprises:
Cowling, be arranged on outside described convergence plate, two ends, left and right are connected with described side panel.
Beneficial effect of the present invention:
The binary plug nozzle that throat area provided by the invention is adjustable, ensures the structural type of conventional binary plug nozzle, has the ability that throat area is adjustable, have overall sizes concurrently little simultaneously, structure is simple, advantage that reliability is high.
Accompanying drawing explanation
Accompanying drawing to be herein merged in specification and to form the part of this specification, shows embodiment according to the invention, and is used from specification one and explains principle of the present invention.
Fig. 1 is the stereogram of the adjustable binary plug nozzle of throat area of the present invention;
Fig. 2 is the plan view of the adjustable binary plug nozzle of throat area of the present invention;
Sectional view when Fig. 3 is Fig. 2 little throat area;
Sectional view when Fig. 4 is Fig. 2 large throat area;
Fig. 5 is the right elevation of Fig. 2.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.
As shown in Figures 1 to 5, the binary plug nozzle that a kind of throat area of the present invention is adjustable, comprises circle and turns square tube body 10, converging portion, plug cone, pressurized strut 8.
Particularly, circle turns square tube body 10, and one end is connected with front end motor, as the supporting member of whole jet pipe.Circle turns being fixedly connected with one end of converging portion away from one end of motor of square tube body 10.Converging portion comprises two pieces of vertical and symmetrically arranged side panel 9 and horizontal symmetrical and is arranged on two blocks of convergence plates 2 between two pieces of described side panels 9; Further, side panel 9 and convergence plate form the inner chamber of converging portion.
Further, be provided with plug cone in the lumen, plug cone can comprise arranged successively by left-to-right front cone 3, plug cone stage casing 4 and back cone 5, plug cone stage casing 4 is arranged between front cone 3 and back cone 5 by the rotating shaft 6 perpendicular to side panel 9, and is closely overlapped by smooth arc surface and front cone 3 and back cone 5; Further, the part (end) turning square tube body 10 near circle that converging portion and front cone 3 and filling in bores stage casing 4 forms convergent passage jointly.
Particularly, plug cone stage casing 4 is two, vertically (up and down) is symmetrical, the cross section in each plug cone stage casing 4 is similar to fan-shaped, comprise large and small two circular arcs, rotating shaft 6 is positioned at described two circular arc circle centre positions in plug cone stage casing 4, and rotating shaft 6 is near described back cone 5, the orthodrome end in plug cone stage casing 4 is connected with front cone 3, and the small arc-shaped end in plug cone stage casing 4 is connected with back cone 5.
The present invention also comprises linkage mechanism 7, and rotating shaft 6 end that the linkage mechanism 7 of the same side bores stage casing 4 with two connection plugs of homonymy is connected, and to drive rotating shaft 6 to rotate in linkage mechanism 7 movement process, thus drives plug cone stage casing 4 to rotate.It should be noted that, linkage mechanism 7 can be connected with rotating shaft by multiple applicable mode, and in the present embodiment, the top and bottom portion of the flat bar part of linkage mechanism 7 is connected with upper and lower two rotating shafts respectively by two connecting rods.
Linkage mechanism 7 is driven by pressurized strut 8.Particularly, pressurized strut 8 is along horizontal arrangement, and one end turns square tube body 10 with circle and is fixedly connected with, and the other end is connected with linkage mechanism 7.Special pressurized strut 8 drives plug cone stage casing 4 to rotate by linkage mechanism 7 as shown in Figure 3 and Figure 4, to make upper and lower plug cone stage casing 4 turn to respective precalculated position, realizes the adjustment of throat area.It should be noted that, on each side panel 9, axially can arrange a fixing chute along jet pipe, linkage mechanism 7 is slidably arranged in fixing chute, realizes the effect of exact constraint pressurized strut 8 force direction; In addition, two symmetrical distributions of fixing chute on two pieces of side panels 9 are positioned at.
The binary plug nozzle that throat area provided by the invention is adjustable, ensures the structural type of conventional binary plug nozzle, has the ability that throat area is adjustable, have overall sizes concurrently little simultaneously, structure is simple, advantage that reliability is high.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (8)
1. the binary plug nozzle that throat area is adjustable, is characterized in that, comprising:
Circle turns square tube body (10), and one end is connected with front end motor;
Converging portion, there is cavity, one end away from motor that described converging portion one end and described circle turn square tube body (10) is connected, described converging portion comprises two pieces vertically and the side panel be symmetrical set (9), and horizontal symmetrical is arranged on two pieces of convergences plate (2) between two pieces of described side panels (9); Described side panel (9) and described convergence plate (2) form described inner chamber;
Plug cone, be arranged in described inner chamber, described plug cone comprises front cone (3), plug cone stage casing (4) and back cone (5), further, described converging portion and described front cone (3) and describedly fill in the end that the close described circle of boring stage casing (4) turns square tube body (10) and jointly form convergent passage;
Described plug cone stage casing (4) by being arranged between described front cone (3) and back cone (5) perpendicular to the rotating shaft (6) of described side panel (9), and being passed through smooth arc surface and described front cone (3) and back cone (5) and is closely overlapped;
Pressurized strut (8), one end and described circle turn square tube body (10) and are connected;
Linkage mechanism (7), be connected with the other end of described pressurized strut (8), described linkage mechanism (7) is also connected with described rotating shaft (6) the other end, described pressurized strut (8) drive described rotating shaft (6) to rotate by described linkage mechanism (7).
2. according to the binary plug nozzle that throat area according to claim 1 is adjustable, it is characterized in that, described plug cone stage casing (4) is two, symmetrical up and down, the cross section of each described plug cone stage casing (4) is similar to fan-shaped, comprise large, little two circular arcs, described rotating shaft (6) is positioned at described two circular arc circle centre positions of described plug cone stage casing (4), and described rotating shaft (6) is near described back cone (5), the orthodrome end of described plug cone stage casing (4) is connected with described front cone (3), the small arc-shaped end of described plug cone stage casing (4) is connected with described back cone (5).
3. according to the binary plug nozzle that throat area according to claim 2 is adjustable, it is characterized in that, described pressurized strut (8) is two, is symmetrically distributed on the two pieces of described side panels (9) in left and right;
The described pressurized strut (8) of the same side is connected with two ends of filling in the rotating shaft (6) of boring stage casing (4) by a described linkage mechanism (7).
4. according to the binary plug nozzle that throat area according to claim 3 is adjustable, it is characterized in that, described side panel (9) has a fixing chute along jet pipe is axial arranged, and described linkage mechanism (7) is slidably arranged in described fixing chute.
5. according to the binary plug nozzle that throat area according to claim 4 is adjustable, it is characterized in that, be positioned at the symmetrical distribution of two described fixing chutes on two pieces of described side panels (9).
6. according to the binary plug nozzle that throat area according to claim 1 is adjustable, it is characterized in that, described back cone (5) outer mold surface is curved surface or faces directly.
7. according to the binary plug nozzle that throat area according to claim 1 is adjustable, it is characterized in that, described front cone (3) is fixedly connected with described side panel (9) with back cone (5).
8., according to the binary plug nozzle that throat area according to claim 1 is adjustable, it is characterized in that, also comprise:
Cowling (1), described cowling (1) is arranged on described convergence plate (2) outside, and two ends, left and right are connected with described side panel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152532.1A CN104791131A (en) | 2015-04-02 | 2015-04-02 | Binary plug type jet pipe with adjustable throat area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152532.1A CN104791131A (en) | 2015-04-02 | 2015-04-02 | Binary plug type jet pipe with adjustable throat area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104791131A true CN104791131A (en) | 2015-07-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510152532.1A Pending CN104791131A (en) | 2015-04-02 | 2015-04-02 | Binary plug type jet pipe with adjustable throat area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104791131A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134408A (en) * | 2015-09-18 | 2015-12-09 | 中国航空工业集团公司沈阳发动机设计研究所 | Single-action system control mechanism for two-dimensional plug type spraying pipe |
| CN113107707A (en) * | 2021-04-28 | 2021-07-13 | 中国航发沈阳发动机研究所 | Engine spray pipe structure |
| CN113982779A (en) * | 2021-10-28 | 2022-01-28 | 中国航发沈阳发动机研究所 | Plug type binary spray pipe capable of realizing active infrared inhibition |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5699966A (en) * | 1980-03-31 | 1997-12-23 | General Electric Company | Exhaust nozzle of a gas turbine engine |
| WO2001004484A1 (en) * | 1999-07-12 | 2001-01-18 | Snecma Moteurs | Convergent-divergent axisymmetric turbojet exhaust nozzle |
| CN101652556A (en) * | 2007-04-04 | 2010-02-17 | 埃尔塞乐公司 | Thrust reverser for a jet engine |
| CN203214188U (en) * | 2013-03-05 | 2013-09-25 | 中国航空工业集团公司沈阳发动机设计研究所 | Adjustable center body structure of two-dimensional plug nozzle |
| CN103696879A (en) * | 2013-12-05 | 2014-04-02 | 中国航空工业集团公司沈阳发动机设计研究所 | Two-dimensional aerospike vectoring nozzle |
| CN104033276A (en) * | 2014-06-09 | 2014-09-10 | 中国航空工业集团公司沈阳发动机设计研究所 | Mechanism for controlling throat area of two-dimensional nozzle |
-
2015
- 2015-04-02 CN CN201510152532.1A patent/CN104791131A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5699966A (en) * | 1980-03-31 | 1997-12-23 | General Electric Company | Exhaust nozzle of a gas turbine engine |
| WO2001004484A1 (en) * | 1999-07-12 | 2001-01-18 | Snecma Moteurs | Convergent-divergent axisymmetric turbojet exhaust nozzle |
| CN101652556A (en) * | 2007-04-04 | 2010-02-17 | 埃尔塞乐公司 | Thrust reverser for a jet engine |
| CN203214188U (en) * | 2013-03-05 | 2013-09-25 | 中国航空工业集团公司沈阳发动机设计研究所 | Adjustable center body structure of two-dimensional plug nozzle |
| CN103696879A (en) * | 2013-12-05 | 2014-04-02 | 中国航空工业集团公司沈阳发动机设计研究所 | Two-dimensional aerospike vectoring nozzle |
| CN104033276A (en) * | 2014-06-09 | 2014-09-10 | 中国航空工业集团公司沈阳发动机设计研究所 | Mechanism for controlling throat area of two-dimensional nozzle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134408A (en) * | 2015-09-18 | 2015-12-09 | 中国航空工业集团公司沈阳发动机设计研究所 | Single-action system control mechanism for two-dimensional plug type spraying pipe |
| CN113107707A (en) * | 2021-04-28 | 2021-07-13 | 中国航发沈阳发动机研究所 | Engine spray pipe structure |
| CN113982779A (en) * | 2021-10-28 | 2022-01-28 | 中国航发沈阳发动机研究所 | Plug type binary spray pipe capable of realizing active infrared inhibition |
| CN113982779B (en) * | 2021-10-28 | 2022-09-30 | 中国航发沈阳发动机研究所 | Plug type binary spray pipe capable of realizing active infrared inhibition |
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Application publication date: 20150722 |
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| RJ01 | Rejection of invention patent application after publication |