CN104832317A - Device for controlling gas leading quantity of inner cone - Google Patents
Device for controlling gas leading quantity of inner cone Download PDFInfo
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- CN104832317A CN104832317A CN201510152434.8A CN201510152434A CN104832317A CN 104832317 A CN104832317 A CN 104832317A CN 201510152434 A CN201510152434 A CN 201510152434A CN 104832317 A CN104832317 A CN 104832317A
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- revolving door
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Abstract
The invention relates to a high-temperature part cooling design of an engine, relates to a device for controlling a gas leading quantity of an inner cone, and provides a device for realizing the inhibition of infrared radiation intensity through the cooling of the inner cone by effectively using outer gas of the engine. The device for controlling the gas leading quantity of the inner cone mainly consists of a gas collecting cover, a rotating door, an acting cylinder, a rotary connecting rod mechanism, the inner cone, a support plate, a confluence ring and a diffuser. The acting cylinder extends to drive the rotary connecting rod mechanism so as to drive the rotating door to rotate in a rail, so that the flow of gas entering the gas collecting cover is controlled, and the flow of the gas for cooling the inner cone is controlled. The device for controlling the gas leading quantity of the inner cone prevents complicated arrangement of gas leading pipelines in other gas leading modes, and guarantees the performances of the engine.
Description
Technical field
The present invention relates to engine hot parts Cooling Design, relate to a kind of device controlling internal cones amount of air entrainment.
Background technique
Conventional axisymmetric nozzle, internal cones is in the encirclement of high-temperature fuel gas, belongs to high-temp solid parts, and very large to the contribution of motor rear infrared radiation, the reduction of internal cones temperature effectively can reduce the infrared intensity at motor rear.At present, be adopt high-pressure compressor bleed cooling to lower the temperature to internal cones, but this type of cooling need the bleed air line of complicated layout; Meanwhile, also can reduce motor overall performance, increase the difficulty of airplane design.
Therefore, in order to avoid the bleed air line of complicated layout, ensure engine performance, effectively utilize motor to contain outward cooling that gas realizes internal cones suppresses its infrared intensity simultaneously, need design a kind of device controlling internal cones amount of air entrainment.
Summary of the invention
A kind of device controlling internal cones amount of air entrainment provided by the invention, avoids the layout of complicated bleed air line, and structure is simple, and can effectively utilize motor to contain outward cooling that gas realizes internal cones suppresses the device of its infrared intensity.
A kind of device controlling internal cones amount of air entrainment provided by the invention, a kind of device controlling internal cones amount of air entrainment, comprise the internal cones of coaxial setting from the inside to the outside, interflow ring, diffuser, wherein, described internal cones is fixedly installed in the ring of described interflow by support plate, it is characterized in that, described internal cones comprises outer wall and internal layer, the airtight chamber that shape is similar to described internal cones is formed between described outer wall and internal layer, described outer field wall is furnished with the air film hole be communicated with described airtight chamber, and the inside of described support plate has the air-flow path be communicated with airtight chamber;
The device of described control internal cones amount of air entrainment also comprises:
Gas skirt, be arranged in by-pass air duct that described interflow ring and diffuser form, and be fixed on the wall of described interflow ring, described gas skirt has suction port and the air entraining jet of connection, described suction port is towards intension gas flow inflow direction, and described air entraining jet is communicated with the air-flow path of described support plate;
Revolving door, is arranged on the suction port place of described gas skirt rotationally, can seal when rotating to precalculated position to described suction port;
Rotation linkage assembly, comprises pull bar, coaxial sleeve and triangle bull stick; Wherein, described triangle bull stick one end is connected with close diffuser one end of described revolving door, the other end of described triangle bull stick is connected with described coaxial sleeve, the axis of described coaxial sleeve is as the spin axis (i.e. described revolving door can around the rotation of this axis) of described revolving door, described coaxial sleeve through the wall of described diffuser, and is connected with described pull bar;
Pressurized strut, one end is fixedly connected with described diffuser, and the other end is connected with described pull bar, and described pressurized strut drives described coaxial sleeve and triangle bull stick to drive described revolving door to rotate by described pull bar successively.
Alternatively, the device of described control internal cones amount of air entrainment also comprises:
Track, is fixed on the two ends up and down of described gas skirt, and described revolving door rotates and is arranged in described track.
Alternatively, described revolving door is two, is symmetricly set in described track, and each described revolving door is connected with a described triangle bull stick.
Alternatively, described coaxial sleeve comprises two urceolus and inner core that coaxially arrange, and the stationary axle be fixed on described gas skirt of can having mercy on rotates;
Described urceolus is fixedly connected with triangle bull stick described in one of them near described gas skirt one end, and described inner core is fixedly connected with triangle bull stick described in another near described gas skirt one end.
Alternatively, described pull bar comprises two, and pull bar described in one of them is connected away from described gas skirt one end with described urceolus, and pull bar described in another is connected away from described gas skirt one end with described inner core.
Beneficial effect of the present invention:
The invention provides a kind of device controlling internal cones amount of air entrainment, avoid the bleed air line of complicated layout, structure is simple, does not affect engine performance, and convenient, effectively utilize motor to contain outward cooling that gas realizes internal cones, suppresses its infrared intensity simultaneously.
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 three-dimensional view that the present invention controls the device of internal cones amount of air entrainment;
Fig. 2 is the plan view that the present invention controls the device of internal cones amount of air entrainment;
Fig. 3 is the sectional view (containing afterburning cylindrical shell and jet pipe) of Fig. 2;
Fig. 4 be the present invention control the device of internal cones amount of air entrainment revolving door close time fragmentary isometric views;
Fig. 5 be the present invention control the device of internal cones amount of air entrainment revolving door close time partial top view;
Fig. 6 is revolving door that the present invention controls the device of internal cones amount of air entrainment fragmentary isometric views when opening;
Fig. 7 is revolving door that the present invention controls the device of internal cones amount of air entrainment partial top view when opening.
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 7, a kind of device controlling internal cones amount of air entrainment provided by the invention, comprises the internal cones 9 of coaxial setting from the inside to the outside, interflow ring 10, diffuser 8, also comprises rotation linkage assembly, gas skirt 1, revolving door 2, track 7 and support plate 11.
Particularly, diffuser 8 one end is connected with front end motor, and the other end is connected with afterburning cylindrical shell E, and internal cones 9 is fixedly installed in the ring 10 of interflow by support plate 11, and support plate 11 can be multiple, is generally 3, is circumferentially evenly arranged.Internal cones 9 double layer construction, comprises outer wall and internal layer, forms the airtight chamber that shape is similar to internal cones 9 profile between outer wall and internal layer; Outer field wall is furnished with the air film hole be communicated with airtight chamber, and air film hole is intension gas flow inflow direction (with reference to Fig. 3) dorsad.The inside of support plate 11 has the air-flow path be communicated with airtight chamber.
Further, gas skirt 1 is arranged in the by-pass air duct that interflow ring 10 and diffuser 8 form, and be fixed on collaborate ring 10 wall on, gas skirt 1 has suction port and air entraining jet, and suction port place is provided with revolving door 2, and air entraining jet is communicated with the air-flow path of support plate 11.
Particularly, revolving door 2 is arranged on the track 7 at the two ends being up and down positioned at gas skirt 1, can rotate under the drive of rotation linkage assembly along track 7, can seal when turning to precalculated position to suction port, or makes air inlet open when another precalculated position.It should be noted that, except adopting track 7 mode, revolving door 2 can be arranged in several ways, repeats no more herein; Equally, revolving door 2 quantity also can be one or more, and in the present embodiment, revolving door 2 is two, is symmetricly set in track 7, and each revolving door 2 is connected with a triangle bull stick 6.
Further, rotation linkage assembly comprises pull bar 4, coaxial sleeve 5 and triangle bull stick 6; Wherein, coaxial sleeve 5 comprises two urceolus and inner core that coaxially arrange, the stationary axle be fixed on gas skirt 1 of can having mercy on rotates, and urceolus is fixedly connected with one of them triangle bull stick near gas skirt 1 one end, and inner core is fixedly connected with another triangle bull stick 6 near gas skirt 1 one end; Pull bar 4 comprises two, and one of them pull bar 4 is connected away from gas skirt 1 one end with urceolus, and another pull bar 4 is connected away from gas skirt 1 one end with inner core.
Pressurized strut 3 is rotated along track 7 by rotation linkage assembly driven rotary door 2.Particularly, as Fig. 4 to Fig. 7, pressurized strut 3 is stretched, and drive pull bar 4 to move, pull bar 4 drives the inside and outside cylinder of coaxial sleeve 5 to rotate round about, and two triangle bull sticks 6 drive two revolving doors 2 to rotate in the opposite direction respectively simultaneously, realize the open and close of revolving door.When revolving door 2 is in open mode, the part cold airflow of outer culvert enters from the suction port of gas skirt 1, introduce in the airtight chamber of internal cones 9 via causing the air-flow path of mouth, support plate 11, then discharged by the air film hole on internal cones 9 outer wall, through afterburning cylindrical shell E and jet pipe F after mixing with all the other cold air of outer culvert and intension high-temperature fuel gas, discharge backward, as shown in Figure 3, thus realize the cooling to internal cones 9.
The invention provides a kind of device controlling internal cones amount of air entrainment, avoid the bleed air line of complicated layout, structure is simple, does not affect engine performance, and convenient, effectively utilize motor to contain outward cooling that gas realizes internal cones, suppresses its infrared intensity simultaneously.
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 (5)
1. one kind controls the device of internal cones amount of air entrainment, comprise the coaxial internal cones (9) arranged from the inside to the outside, interflow ring (10), diffuser (8), wherein, described internal cones (9) is fixedly installed in described interflow ring (10) by support plate (11), it is characterized in that, described internal cones (9) comprises outer wall and internal layer, the airtight chamber that shape is similar to described internal cones (9) profile is formed between described outer wall and internal layer, described outer field wall is furnished with the air film hole be communicated with described airtight chamber, the inside of described support plate (11) has the air-flow path be communicated with described airtight chamber,
The device of described control internal cones amount of air entrainment also comprises:
Gas skirt (1), be arranged in by-pass air duct that described interflow ring (10) and diffuser (8) form, and be fixed on the wall at described interflow ring (10), described gas skirt (1) has suction port and the air entraining jet of connection, described suction port is towards intension gas flow inflow direction, and described air entraining jet is communicated with the air-flow path of described support plate (11);
Revolving door (2), is arranged on the suction port place of described gas skirt (1) rotationally, can seal described suction port;
Rotation linkage assembly, comprises pull bar (4), coaxial sleeve (5) and triangle bull stick (6); Wherein, described triangle bull stick (6) one end is connected with close diffuser (8) one end of described revolving door (2), the other end of described triangle bull stick (6) is connected with described coaxial sleeve (5), the axis of described coaxial sleeve (5) is as the spin axis of described revolving door (2), described coaxial sleeve (5) through the wall of described diffuser (8), and is connected with described pull bar (4);
Pressurized strut (3), one end is fixedly connected with described diffuser (8), and the other end is connected with described pull bar (4).
2., according to the device of control internal cones amount of air entrainment according to claim 1, it is characterized in that, also comprise:
Track (7), is fixed on the two ends up and down of described gas skirt (1), and described revolving door (2) rotates and is arranged in described track (7).
3. according to the device of control internal cones amount of air entrainment according to claim 2, it is characterized in that, described revolving door (2) is two, be symmetricly set in described track (7), each described revolving door (2) is connected with a described triangle bull stick (6).
4. according to the device of control internal cones amount of air entrainment according to claim 2, it is characterized in that, described coaxial sleeve (5) comprises two urceolus and inner core that coaxially arrange, and the stationary axle be fixed on described gas skirt (1) of can having mercy on rotates;
Described urceolus is fixedly connected with triangle bull stick described in one of them near described gas skirt (1) one end, and described inner core is fixedly connected with triangle bull stick described in another near described gas skirt (1) one end.
5. according to the device of control internal cones amount of air entrainment according to claim 3, it is characterized in that, described pull bar (4) comprises two, pull bar described in one of them (4) is connected away from described gas skirt (1) one end with described urceolus, and pull bar described in another (4) is connected away from described gas skirt (1) one end with described inner core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152434.8A CN104832317B (en) | 2015-04-02 | 2015-04-02 | A kind of device controlling inner cone amount of air entrainment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510152434.8A CN104832317B (en) | 2015-04-02 | 2015-04-02 | A kind of device controlling inner cone amount of air entrainment |
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| CN104832317A true CN104832317A (en) | 2015-08-12 |
| CN104832317B CN104832317B (en) | 2017-03-01 |
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| CN201510152434.8A Active CN104832317B (en) | 2015-04-02 | 2015-04-02 | A kind of device controlling inner cone amount of air entrainment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801649A (en) * | 2017-01-23 | 2017-06-06 | 中国航发沈阳发动机研究所 | A kind of plug axisymmetric nozzle |
| CN112031938A (en) * | 2020-08-18 | 2020-12-04 | 清华大学 | System for injecting air in external culvert to reduce air-film cold air temperature of aero-engine |
| CN112943480A (en) * | 2021-01-27 | 2021-06-11 | 西北工业大学 | Cooling structure of S-shaped invisible spray pipe of turbofan engine |
| CN113357011A (en) * | 2021-06-23 | 2021-09-07 | 中国航发沈阳发动机研究所 | Engine main runner bleed structure |
| CN114109609A (en) * | 2021-11-23 | 2022-03-01 | 中国航发沈阳发动机研究所 | Efficient hybrid cooling engine backward stealth structure |
| CN115372009A (en) * | 2022-08-04 | 2022-11-22 | 中国航发沈阳发动机研究所 | A culvert exhaust flow measurement system outward for aeroengine is experimental |
| CN116428616A (en) * | 2023-04-17 | 2023-07-14 | 中国航发沈阳发动机研究所 | Supporting plate connecting structure between cones in splitter ring in afterburner of aeroengine |
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| CN202659348U (en) * | 2012-06-11 | 2013-01-09 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug-in adjustable exhaust ejector of adjustment sheet |
| CN203175702U (en) * | 2013-03-04 | 2013-09-04 | 中国航空工业集团公司沈阳发动机设计研究所 | Central cone cooling structure of plug type axially-symmetrical spay tube |
| 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 |
| CN104214008A (en) * | 2014-06-06 | 2014-12-17 | 中国航空工业集团公司沈阳发动机设计研究所 | Novel tail cone |
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| WO2000005496A1 (en) * | 1998-07-22 | 2000-02-03 | General Electric Company | Vectoring nozzle control system |
| CN202659348U (en) * | 2012-06-11 | 2013-01-09 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug-in adjustable exhaust ejector of adjustment sheet |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106801649A (en) * | 2017-01-23 | 2017-06-06 | 中国航发沈阳发动机研究所 | A kind of plug axisymmetric nozzle |
| CN112031938A (en) * | 2020-08-18 | 2020-12-04 | 清华大学 | System for injecting air in external culvert to reduce air-film cold air temperature of aero-engine |
| CN112031938B (en) * | 2020-08-18 | 2021-06-29 | 清华大学 | System for injecting air in external culvert to reduce air-film cold air temperature of aero-engine |
| CN112943480A (en) * | 2021-01-27 | 2021-06-11 | 西北工业大学 | Cooling structure of S-shaped invisible spray pipe of turbofan engine |
| CN113357011A (en) * | 2021-06-23 | 2021-09-07 | 中国航发沈阳发动机研究所 | Engine main runner bleed structure |
| CN114109609A (en) * | 2021-11-23 | 2022-03-01 | 中国航发沈阳发动机研究所 | Efficient hybrid cooling engine backward stealth structure |
| CN114109609B (en) * | 2021-11-23 | 2024-01-05 | 中国航发沈阳发动机研究所 | Engine backward stealth structure of high-efficient hybrid cooling |
| CN115372009A (en) * | 2022-08-04 | 2022-11-22 | 中国航发沈阳发动机研究所 | A culvert exhaust flow measurement system outward for aeroengine is experimental |
| CN116428616A (en) * | 2023-04-17 | 2023-07-14 | 中国航发沈阳发动机研究所 | Supporting plate connecting structure between cones in splitter ring in afterburner of aeroengine |
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| CN104832317B (en) | 2017-03-01 |
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