CN204113488U - A kind of sphere contracting nozzle cooling flow control structure - Google Patents
A kind of sphere contracting nozzle cooling flow control structure Download PDFInfo
- Publication number
- CN204113488U CN204113488U CN201420497290.0U CN201420497290U CN204113488U CN 204113488 U CN204113488 U CN 204113488U CN 201420497290 U CN201420497290 U CN 201420497290U CN 204113488 U CN204113488 U CN 204113488U
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- China
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- control valve
- jet pipe
- rotary control
- orifice plate
- sphere
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Abstract
A kind of sphere contracting nozzle cooling flow control structure, comprises draw-in groove, jet pipe holding part, jet pipe heat screen, orifice plate, rotary control valve and pressurized strut; Wherein: draw-in groove, jet pipe holding part and orifice plate are fixed by the bolt of mounting edge; Logical cooled gas between jet pipe holding part inwall and jet pipe heat screen, the logical hot combustion gas in heat screen inside; Orifice plate and rotary control valve are between afterburning cylindrical shell cooling channel and jet pipe cooling channel; Rotary control valve is stuck in the U-shaped draw-in groove of draw-in groove, by rotating the flow controlling to flow into jet pipe cooled gas; Pressurized strut caudal peduncle is fixed on afterburning cylinder inboard wall face, and piston rod is connected with rotary control valve, by the rotation of the flexible promotion rotary control valve of upper and lower two pressurized strut piston rods.Advantage of the present utility model: sphere contracting nozzle cooling flow control structure described in the utility model, structure is simple, according to motor different conditions controlled cooling model gas flow, can realize effective utilization of cooled gas.
Description
Technical field
The utility model relates to aviation or airspace engine jet pipe field, particularly a kind of sphere contracting nozzle cooling flow control structure.
Background technique
Tradition jet pipe type of cooling flow is unadjustable, and when engine behavior is different, jet pipe cooled gas flow is constant, but during intermediateness work, when jet pipe wall surface temperature is lower, now jet pipe wall can bear hot gas temperature, needs cold air flow low; During maximum rating work, now cold air flow demand increases.Because flow is unadjustable, now pass into cold air by minimum discharge, wall cooling effect during the state that can have the greatest impact, if pass into cold air by peak rate of flow, the waste of cold air during intermediateness can be caused.
Model utility content
The purpose of this utility model is to provide one to can be used for sphere contracting nozzle cooling flow control structure, under the overall performance prerequisite ensureing motor, meets the requirement of jet pipe wall cooling with minimum discharge.
The utility model provides a kind of sphere contracting nozzle cooling flow control structure, it is characterized in that: described sphere contracting nozzle cooling flow control structure, comprises draw-in groove 1, jet pipe holding part 2, jet pipe heat screen 3, orifice plate 4, rotary control valve 5 and pressurized strut 6;
Wherein: draw-in groove 1, jet pipe holding part 2 and orifice plate 4 are fixed by the bolt of mounting edge; Logical cooled gas between jet pipe holding part 2 inwall and jet pipe heat screen 3, the logical hot combustion gas in heat screen inside; Orifice plate 4 and rotary control valve 5 are between afterburning cylindrical shell cooling channel and jet pipe cooling channel; Rotary control valve 5 is stuck in the U-shaped draw-in groove of draw-in groove 1, by rotating the flow controlling to flow into jet pipe cooled gas; Pressurized strut caudal peduncle is fixed on afterburning cylinder inboard wall face, and piston rod is connected with rotary control valve 5, by the rotation of the flexible promotion rotary control valve 5 of upper and lower two pressurized strut piston rods.
It is 1 ~ 2mm circular hole that orifice plate 4 and rotary control valve 5 circumference are uniformly distributed diameter, and when fuel gas temperature is lower, orifice plate 4 and rotary control valve 5 are staggered Fig. 4, and cold air cannot enter jet pipe; When fuel gas temperature is higher, rotary control valve 5 rotates, and circumferential circular hole overlaps with orifice plate 4 circular hole, and cooled gas flows into jet pipe, the wall of cooling sphere contracting nozzle.
Orifice plate 4 and rotary control valve 5 circumference hole arranged every 10 ~ 15 °, radial direction one row 3 ~ 4 holes.
Control the pressurized strut symmetrical placement up and down of rotary control valve 5, two pressurized strut piston rod directions are contrary, and ensure that extending amount is consistent, namely pressurized strut forms a pair couple to rotary control valve 5.
Advantage of the present utility model:
Sphere contracting nozzle cooling flow control structure described in the utility model, structure is simple, according to motor different conditions controlled cooling model gas flow, can realize effective utilization of cooled gas.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is sphere contracting nozzle cooling flow control structure general illustration;
Fig. 2 is orifice plate plan view;
Fig. 3 is rotary control valve plan view;
Fundamental diagram when Fig. 4 is cold air flow closedown;
Fig. 5 is cold air flow fundamental diagram when opening.
Embodiment
Embodiment 1
Present embodiments provide a kind of sphere contracting nozzle cooling flow control structure, it is characterized in that: described sphere contracting nozzle cooling flow control structure, comprises draw-in groove 1, jet pipe holding part 2, jet pipe heat screen 3, orifice plate 4, rotary control valve 5 and pressurized strut 6;
Wherein: draw-in groove 1, jet pipe holding part 2 and orifice plate 4 are fixed by the bolt of mounting edge; Logical cooled gas between jet pipe holding part 2 inwall and jet pipe heat screen 3, the logical hot combustion gas in heat screen inside; Orifice plate 4 and rotary control valve 5 are between afterburning cylindrical shell cooling channel and jet pipe cooling channel; Rotary control valve 5 is stuck in the U-shaped draw-in groove of draw-in groove 1, by rotating the flow controlling to flow into jet pipe cooled gas; Pressurized strut caudal peduncle is fixed on afterburning cylinder inboard wall face, and piston rod is connected with rotary control valve 5, by the rotation of the flexible promotion rotary control valve 5 of upper and lower two pressurized strut piston rods.
It is 1mm circular hole that orifice plate 4 and rotary control valve 5 circumference are uniformly distributed diameter, and when fuel gas temperature is lower, orifice plate 4 and rotary control valve 5 are staggered Fig. 4, and cold air cannot enter jet pipe; When fuel gas temperature is higher, rotary control valve 5 rotates, and circumferential circular hole overlaps with orifice plate 4 circular hole, and cooled gas flows into jet pipe, the wall of cooling sphere contracting nozzle.
Orifice plate 4 and rotary control valve 5 circumference hole arranged every 10 °, radial direction one row 3 holes.
Control the pressurized strut symmetrical placement up and down of rotary control valve 5, two pressurized strut piston rod directions are contrary, and ensure that extending amount is consistent, namely pressurized strut forms a pair couple to rotary control valve 5.
Embodiment 2
Present embodiments provide a kind of sphere contracting nozzle cooling flow control structure, it is characterized in that: described sphere contracting nozzle cooling flow control structure, comprises draw-in groove 1, jet pipe holding part 2, jet pipe heat screen 3, orifice plate 4, rotary control valve 5 and pressurized strut 6;
Wherein: draw-in groove 1, jet pipe holding part 2 and orifice plate 4 are fixed by the bolt of mounting edge; Logical cooled gas between jet pipe holding part 2 inwall and jet pipe heat screen 3, the logical hot combustion gas in heat screen inside; Orifice plate 4 and rotary control valve 5 are between afterburning cylindrical shell cooling channel and jet pipe cooling channel; Rotary control valve 5 is stuck in the U-shaped draw-in groove of draw-in groove 1, by rotating the flow controlling to flow into jet pipe cooled gas; Pressurized strut caudal peduncle is fixed on afterburning cylinder inboard wall face, and piston rod is connected with rotary control valve 5, by the rotation of the flexible promotion rotary control valve 5 of upper and lower two pressurized strut piston rods.
It is 2mm circular hole that orifice plate 4 and rotary control valve 5 circumference are uniformly distributed diameter, and when fuel gas temperature is lower, orifice plate 4 and rotary control valve 5 are staggered Fig. 4, and cold air cannot enter jet pipe; When fuel gas temperature is higher, rotary control valve 5 rotates, and circumferential circular hole overlaps with orifice plate 4 circular hole, and cooled gas flows into jet pipe, the wall of cooling sphere contracting nozzle.
Orifice plate 4 and rotary control valve 5 circumference hole arranged every 12 °, radial direction one row 4 holes.
Control the pressurized strut symmetrical placement up and down of rotary control valve 5, two pressurized strut piston rod directions are contrary, and ensure that extending amount is consistent, namely pressurized strut forms a pair couple to rotary control valve 5.
Embodiment 3
Present embodiments provide a kind of sphere contracting nozzle cooling flow control structure, it is characterized in that: described sphere contracting nozzle cooling flow control structure, comprises draw-in groove 1, jet pipe holding part 2, jet pipe heat screen 3, orifice plate 4, rotary control valve 5 and pressurized strut 6;
Wherein: draw-in groove 1, jet pipe holding part 2 and orifice plate 4 are fixed by the bolt of mounting edge; Logical cooled gas between jet pipe holding part 2 inwall and jet pipe heat screen 3, the logical hot combustion gas in heat screen inside; Orifice plate 4 and rotary control valve 5 are between afterburning cylindrical shell cooling channel and jet pipe cooling channel; Rotary control valve 5 is stuck in the U-shaped draw-in groove of draw-in groove 1, by rotating the flow controlling to flow into jet pipe cooled gas; Pressurized strut caudal peduncle is fixed on afterburning cylinder inboard wall face, and piston rod is connected with rotary control valve 5, by the rotation of the flexible promotion rotary control valve 5 of upper and lower two pressurized strut piston rods.
It is 2mm circular hole that orifice plate 4 and rotary control valve 5 circumference are uniformly distributed diameter, and when fuel gas temperature is lower, orifice plate 4 and rotary control valve 5 are staggered Fig. 4, and cold air cannot enter jet pipe; When fuel gas temperature is higher, rotary control valve 5 rotates, and circumferential circular hole overlaps with orifice plate 4 circular hole, and cooled gas flows into jet pipe, the wall of cooling sphere contracting nozzle.
Orifice plate 4 and rotary control valve 5 circumference hole arranged every 15 °, radial direction one row 4 holes.
Control the pressurized strut symmetrical placement up and down of rotary control valve 5, two pressurized strut piston rod directions are contrary, and ensure that extending amount is consistent, namely pressurized strut forms a pair couple to rotary control valve 5.
Claims (4)
1. a sphere contracting nozzle cooling flow control structure, it is characterized in that: described sphere contracting nozzle cooling flow control structure, comprises draw-in groove (1), jet pipe holding part (2), jet pipe heat screen (3), orifice plate (4), rotary control valve (5) and pressurized strut (6);
Wherein: draw-in groove (1), jet pipe holding part (2) and orifice plate (4) are fixed by the bolt of mounting edge; Logical cooled gas between jet pipe holding part (2) inwall and jet pipe heat screen (3), the logical hot combustion gas in heat screen inside; Orifice plate (4) and rotary control valve (5) are between afterburning cylindrical shell cooling channel and jet pipe cooling channel; Rotary control valve (5) is stuck in the U-shaped draw-in groove of draw-in groove (1), by rotating the flow controlling to flow into jet pipe cooled gas; Pressurized strut caudal peduncle is fixed on afterburning cylinder inboard wall face, and piston rod is connected with rotary control valve (5), by the rotation of the flexible promotion rotary control valve (5) of upper and lower two pressurized strut piston rods.
2. according to sphere contracting nozzle cooling flow control structure according to claim 1, it is characterized in that: it is 1 ~ 2mm circular hole that orifice plate (4) and rotary control valve (5) circumference are uniformly distributed diameter.
3., according to sphere contracting nozzle cooling flow control structure according to claim 1, it is characterized in that: orifice plate (4) and rotary control valve (5) circumference hole arranged every 10 ~ 15 °, radial direction one row 3 ~ 4 holes.
4. according to sphere contracting nozzle cooling flow control structure according to claim 1, it is characterized in that: the pressurized strut symmetrical placement up and down controlling rotary control valve (5), two pressurized strut piston rod directions are contrary, guarantee extending amount is consistent, and namely pressurized strut forms a pair couple to rotary control valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497290.0U CN204113488U (en) | 2014-08-29 | 2014-08-29 | A kind of sphere contracting nozzle cooling flow control structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420497290.0U CN204113488U (en) | 2014-08-29 | 2014-08-29 | A kind of sphere contracting nozzle cooling flow control structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204113488U true CN204113488U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420497290.0U Expired - Fee Related CN204113488U (en) | 2014-08-29 | 2014-08-29 | A kind of sphere contracting nozzle cooling flow control structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204113488U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104973A (en) * | 2017-11-28 | 2018-06-01 | 中国航发沈阳发动机研究所 | A kind of two-dimensional nozzle |
| CN109184947A (en) * | 2018-10-11 | 2019-01-11 | 西北工业大学 | A kind of Integral rotary convergence vector spray |
-
2014
- 2014-08-29 CN CN201420497290.0U patent/CN204113488U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108104973A (en) * | 2017-11-28 | 2018-06-01 | 中国航发沈阳发动机研究所 | A kind of two-dimensional nozzle |
| CN109184947A (en) * | 2018-10-11 | 2019-01-11 | 西北工业大学 | A kind of Integral rotary convergence vector spray |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20160829 |