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Adjustable throttling device for simulating spraying pipe of aero-engine

An aero-engine, adjustable technology, applied in the direction of jet propulsion device, machine/engine, jet engine test, etc., can solve the problem that the dynamic performance of butterfly valve aerodynamic flow field is greatly affected, the structure of sleeve valve body is complicated, and the control of multi-flap valve Problems such as complex logic can reduce the risk of motion sticking, meet the needs of nozzle simulation tests, and achieve good flow field quality.

Active Publication Date: 2019-04-19
AECC SICHUAN GAS TURBINE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The uneven exhaust of the butterfly valve has a great influence on the dynamic performance of the aerodynamic flow field; the diaphragm valve has a limited service life in a high temperature environment; the Y-type valve is large in size and cannot be used in a large-diameter engine; the control logic of the multi-flap valve is complex , the processing cost is high; the sleeve valve has a high risk of sticking in the high-temperature flow field due to the complex structure of the valve body, and these valves are restricted to varying degrees as engine nozzle simulation devices

Method used

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  • Adjustable throttling device for simulating spraying pipe of aero-engine
  • Adjustable throttling device for simulating spraying pipe of aero-engine
  • Adjustable throttling device for simulating spraying pipe of aero-engine

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Embodiment Construction

[0027] The following will refer to the attached Figure 1-5 Describe in detail the adjustable flow device simulating an aeroengine nozzle of the present invention. The adjustable flow device of the present invention comprises a nozzle outer tube 1, a nozzle inner tube 2, a normally open through hole 3, a movable sleeve 4, a sealing head 5, a straight nozzle tube 6, a straight outer fixed ring 7, a fixed cascade 1, a One sleeve lower lug seat b-1, the first lower drive cylinder c-1, the first guide rail d-1, the first head guide rail seat e-1, the sleeve guide rail bearing seat 1, the second sleeve guide rail bearing seat f-2, the first upper drive cylinder fixing seat h-1, the first straight guide rail fixing seat g-1, the trunnion j-1 installed on the first outer cylinder, the trunnion j-2 installed on the second outer cylinder, the third outer cylinder The barrel mounts a trunnion j-3, the fourth outer barrel mounts a trunnion j-4, the first straight barrel mounts a trunnio...

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Abstract

The invention discloses an adjustable throttling device for simulating a spraying pipe of an aero-engine. The adjustable throttling device comprises a spraying pipe body, an axial normal-open throughhole, a lateral adjustable through hole, an adjusting assembly and a fixing assembly, wherein the spraying pipe body comprises an axial inlet end and an axial outlet end, the axial normal-open throughhole is located at the axial outlet end of the spraying pipe body, the lateral adjustable through hole is formed in the spraying pipe body in the peripheral direction, the lateral adjustable throughhole is closer to the axial inlet end of the spraying pipe body compared with the normal-open through hole, the adjusting assembly is used for adjusting the hole size of the lateral adjustable throughhole, therefore the throttling working condition of the spraying pipe of the aero-engine is simulated, and the fixing assembly fixes the adjusting assembly to the spraying pipe body.

Description

technical field [0001] The invention relates to an adjustable flow device, in particular to an adjustable flow device for simulating an aeroengine nozzle in a wind tunnel test or an aeroengine test. Background technique [0002] Aeroengine exhaust device (referred to as nozzle), its main function is to accelerate the expansion of high-temperature, high-pressure gas after the turbine and discharge it from the body; another function is to change the distribution of the gas expansion ratio in the turbine and nozzle by adjusting the area of ​​the nozzle , in order to realize the control of the working state of the engine. [0003] In the process of aero-engine component tests and wind tunnel tests, an adjustable flow device that simulates the work of the engine nozzle is needed to complement the adjustable exhaust function of the real nozzle and realize the experimental research on other components. Limited by the high-temperature and high-speed air / gas medium, the traditional ...

Claims

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Application Information

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IPC IPC(8): F02K1/06F02K1/08F02K1/15G01M15/14
CPCF02K1/06F02K1/08F02K1/15G01M15/14
Inventor 陈鹏飞吴锋钟华贵杨斐聂建平张大明
Owner AECC SICHUAN GAS TURBINE RES INST
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