CN207454110U - A kind of starting system bleed air line structure - Google Patents
A kind of starting system bleed air line structure Download PDFInfo
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- CN207454110U CN207454110U CN201721449329.1U CN201721449329U CN207454110U CN 207454110 U CN207454110 U CN 207454110U CN 201721449329 U CN201721449329 U CN 201721449329U CN 207454110 U CN207454110 U CN 207454110U
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- asthma
- unloading
- valve
- air
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Abstract
The utility model is related to aircraft testing apparatus fields, more particularly to a kind of starting system bleed air line structure, including bleed conduit, anti-asthma unloading valve, unloading air guiding tube, caliber change device, compensation of pipeline device, air generator and bleed conduit unicom, bleed conduit unloads valve unicom with anti-asthma, anti-asthma unloading valve is respectively with unloading air guiding tube and caliber change device unicom, caliber change device and compensation of pipeline device unicom, compensation of pipeline device and air turbine starter unicom.Anti-asthma unloading valve is made of the triple valve that venturi tube and anti-asthma feather valve form, it unloads air guiding tube and exports the big pipe of caliber with bell mouth and than anti-asthma feather valve for one, caliber change device is concentric reducer connector coupling tube, and compensation of pipeline device is bellows.The beneficial effects of the utility model are：It is provided in altitude simulation test to air turbine starter and stablizes qualified compressed gas source, realize air turbine starter band forwarding engine start.
Description
Technical field
The utility model is related to aircraft testing apparatus fields, and in particular to a kind of starting system bleed air line structure.
Background technology
To verify that certain h type engine h performance need to carry out altitude simulation test.For the h type engine h starting problem, rack examination
The source of the gas that cannot be provided and meet the h type engine h start request is provided, and in order to complete to have air turbine starter band in pilot project
Turn high pressure rotor and start subject, it is necessary to which engine starting system bleed air line, the compressed gas source that air generator is generated supply
Air turbine starter realizes that engine starts.
Utility model content
The purpose of this utility model is that solving the above problems, a kind of starting system bleed air line structure is provided.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is：
A kind of starting system bleed air line structure, including bleed conduit, anti-asthma unloading valve, unloading air guiding tube, pipe
Footpath changeable device, compensation of pipeline device, air generator and bleed conduit unicom, bleed conduit unload valve unicom with anti-asthma, prevent
Asthma unloading valve joins respectively with unloading air guiding tube and caliber change device unicom, caliber change device and compensation of pipeline device
It is logical, compensation of pipeline device and air turbine starter unicom.
Anti-asthma unloading valve is made of the triple valve that venturi tube and anti-asthma feather valve form, and unloading air guiding tube is one
A to export the big pipe of caliber with bell mouth and than anti-asthma feather valve, caliber change device is concentric reducer connector coupling tube, is managed
Road compensator is bellows.
The beneficial effects of the utility model are：It is provided in altitude simulation test to air turbine starter and stablizes qualification
Compressed gas source, realize air turbine starter band forwarding engine start.
Description of the drawings
Fig. 1 is utility model diagram.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples：
Embodiment：Referring to Fig. 1.
A kind of starting system bleed air line structure, including bleed conduit 1, anti-asthma unloading valve, unloading air guiding tube 2,
Caliber change device 3, compensation of pipeline device 4, air generator 5 and 1 unicom of bleed conduit, bleed conduit 1 unload valve with anti-asthma
Unicom, anti-asthma unloading valve is respectively with unloading 3 unicom of air guiding tube 2 and caliber change device, caliber change device 3 and pipeline
4 unicom of compensator, compensation of pipeline device 4 and 6 unicom of air turbine starter.
Anti-asthma unloading valve is made of the triple valve that venturi tube 7 and anti-asthma feather valve 8 form, unloading air guiding tube 2
For one with bell mouth and the pipe bigger than the outlet caliber of anti-asthma feather valve 8, caliber change device 3 are concentric reducer connector transition
Pipe, compensation of pipeline device 4 are bellows.
The utility model specification：Expanded by the air that the compressor of air generator sucks in compressor itself and radially
Pressure is formed in depressor, after flowing out diffuser, enters burning about 2/3 air of chamber through air distributor.Remaining 1/3 air,
Then anti-asthma unloading valve is exited into from compressor casing.Dress is there are one Venturi tube on anti-asthma unloading valve, for limiting from sky
The air mass flow that gas generator is drawn is overloaded to prevent locking apparatus.When air generator does not work, anti-asthma unloading valve is opened,
It is kept open in air generator starting, compressed air is discharged to by unloading air guiding tube in air.
It is completed and after rotating speed reaches 100% when air generator starts, by hydraulic motor starting button, compressed air is from sky
Gas generator compressor casing flows out through bleed conduit and enters anti-asthma unloading valve, is now placed in starting after compensation of pipeline device
Stop valve on machine air turbine starter is opened, and while stop valve is opened, is pressed caused by supplying through Venturi tube
Power changes, and can cause the quick closedown of anti-asthma unloading valve and cut off exhaust channel to air.After anti-asthma unloading valve
Compressed air enters air turbine starter by caliber change device, blows and turns air turbine starter rotor, so as to which band turns
Engine high pressure rotor starting engine.Compensation of pipeline device plays the role of compensation conduit foozle in installation process.Work as hair
Engine start finishes, and stop valve is closed, and supply causes anti-asthma unloading valve to be opened, pressure by pressure change caused by Venturi tube
Contracting air unloads valve by anti-asthma and is introduced into unloading air guiding tube.Altitude simulation test the result shows that, by the pipeline structure
Can compressed gas source be smoothly supplied to air turbine starter, and smoothly start engine.
What the embodiment of the utility model was announced is preferred embodiment, but is not limited thereto, the common skill of this field
Art personnel easily according to above-described embodiment, understand the spirit of the utility model, and make different amplification and variation, but as long as
The spirit of the utility model is not departed from, it is all within the protection scope of the present utility model.
Claims (2)
1. a kind of starting system bleed air line structure, it is characterised in that：Including bleed conduit, anti-asthma unloading valve, unloading air
Guiding tube, caliber change device, compensation of pipeline device, air generator and bleed conduit unicom, bleed conduit are lived with anti-asthma unloading
The couplet on the door leads to, and anti-asthma unloading valve is respectively with unloading air guiding tube and caliber change device unicom, caliber change device and pipeline
Compensator unicom, compensation of pipeline device and air turbine starter unicom.
2. a kind of starting system bleed air line structure according to claim 1, it is characterised in that：Anti-asthma unloading valve be by
The triple valve of venturi tube and anti-asthma feather valve composition is formed, and unloading air guiding tube is for a band bell mouth and than anti-asthma feather valve
The big pipe of outlet caliber, caliber change device is concentric reducer connector coupling tube, and compensation of pipeline device is bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721449329.1U CN207454110U (en) | 2017-11-03 | 2017-11-03 | A kind of starting system bleed air line structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721449329.1U CN207454110U (en) | 2017-11-03 | 2017-11-03 | A kind of starting system bleed air line structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454110U true CN207454110U (en) | 2018-06-05 |
Family
ID=62253635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721449329.1U Active CN207454110U (en) | 2017-11-03 | 2017-11-03 | A kind of starting system bleed air line structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454110U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894741A (en) * | 2019-12-20 | 2020-11-06 | 中国航发长春控制科技有限公司 | Anti-surge device for engine |
| CN111964910A (en) * | 2020-06-30 | 2020-11-20 | 中国航发南方工业有限公司 | Engine air-entraining test device, design method and test method |
| US11397123B2 (en) * | 2018-11-20 | 2022-07-26 | Rolls-Royce Deutschland Ltd & Co Kg | Engine with valve device and test method |
-
2017
- 2017-11-03 CN CN201721449329.1U patent/CN207454110U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11397123B2 (en) * | 2018-11-20 | 2022-07-26 | Rolls-Royce Deutschland Ltd & Co Kg | Engine with valve device and test method |
| CN111894741A (en) * | 2019-12-20 | 2020-11-06 | 中国航发长春控制科技有限公司 | Anti-surge device for engine |
| CN111964910A (en) * | 2020-06-30 | 2020-11-20 | 中国航发南方工业有限公司 | Engine air-entraining test device, design method and test method |
| CN111964910B (en) * | 2020-06-30 | 2022-04-19 | 中国航发南方工业有限公司 | Engine air-entraining test device, design method and test method |
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