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The performance debugging method of supercharging stage and turbofan engine

A debugging method and performance technology, applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve problems such as uneconomical, long cycle, etc., to reduce the scope of structural adjustment, shorten trial production and assembly time, improve debugging efficiency and economy efficiency effect

Active Publication Date: 2021-10-01
AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a performance debugging method of a supercharging stage and a turbofan engine in order to overcome the long cycle and uneconomical defects of the performance debugging method of the supercharging stage in the prior art.

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  • The performance debugging method of supercharging stage and turbofan engine
  • The performance debugging method of supercharging stage and turbofan engine
  • The performance debugging method of supercharging stage and turbofan engine

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Embodiment Construction

[0050] The present invention will be more clearly and completely described below by means of the embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the described embodiments.

[0051] like figure 1 As shown, the supercharging stage 10 is one of the important components of the turbofan engine, which is located between the fan 30 and the high-pressure compressor, and is used for supercharging the gas entering the inner content after the fan 30 . After passing through the fan 30 , the air flow is divided into two ducts, the connotation is discharged through the outlet guide vanes 20 , and the connotation enters the transition section and the high-pressure compressor through the supercharging stage 10 . The supercharging stage 10 is of great significance to the series development of turbofan engines. By adding, reducing, or redesigning the supercharging stage 10, the physical flow of the connotation can be adjust...

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Abstract

The invention discloses a performance debugging method of a supercharging stage and a turbofan engine. The supercharging stage includes a drum and rotor blades installed on the drum. The performance debugging method of the supercharging stage includes the following steps: S1, determining the rotor blades The installation angle relative to the drum; S2, remove the old rotor blade; S3, select a new rotor blade corresponding to the installation angle, and install the new rotor blade on the drum. The performance debugging method of the supercharging stage is used for the supercharging stage debugging of the low-pressure section of the turbofan engine. It only needs to determine the installation angle between the rotor blades and the drum, and install the corresponding rotor blades on the drum to complete the booster stage. Compared with the original debugging method, the adjustment of the pressure stage reduces the structural adjustment range during the debugging process of the supercharged stage, and only adjusts the installation angle of the rotor blades, without redesigning and trial-manufacturing the supercharged stage based on the overall design requirements. Correspondingly, trial production and assembly time are shortened, and debugging efficiency and economic efficiency are improved.

Description

technical field [0001] The invention relates to a performance adjustment method of a supercharging stage and a turbofan engine. Background technique [0002] The supercharging stage is one of the important components of the turbofan engine. It is located between the fan and the high-pressure compressor, and is used for supercharging the gas entering the connotation after the fan. After the gas passes through the booster stage, it enters the transition section and the high-pressure compressor. The supercharging stage is of great significance to the series development of turbofan engines. By adding, reducing, or redesigning the supercharging stage, the physical flow of the connotation can be adjusted, and the flow and pressure ratio of the fan connotation can be adjusted to achieve The thrust of the engine is increased or decreased. [0003] For a turbofan engine, the reduction of the intrinsic flow rate means that the bypass ratio increases, which can reduce the fuel consum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01D5/14F01D5/30F01D9/02F02K3/06
CPCF01D5/141F01D5/147F01D5/30F01D9/02F02K3/06
Inventor 杨小贺裴小萌李妍李艾挺
Owner AECC SHANGHAI COMML AIRCRAFT ENGINE MFG CO LTD