Supercharging stage performance debugging method and turbofan engine

Abstract

The invention discloses a supercharging stage performance debugging method and a turbofan engine. A supercharging stage comprises a drum and rotor blades mounted on the drum. The supercharging stage performance debugging method comprises the following steps of S1, determining the mounting angle of the rotor blades relative to the drum; S2, disassembling old rotor blades; and S3, selecting new rotor blades corresponding to the mounting angle, and mounting the new rotor blades on the drum. The supercharging stage performance debugging method is used for supercharging stage debugging of a low-pressure section of the turbofan engine, only the mounting angle of the rotor blades and the drum needs to be determined, and the corresponding rotor blades are installed on the drum, so that adjustment of the supercharging stage is completed; and compared with an original debugging method, the structure adjusting range in the supercharging stage debugging process is narrowed, only the mounting angle of the rotor blades is adjusted, redesign and trial-manufacture of the supercharging stage based on the overall design requirement are not needed, the trial-manufacture and assembly time is correspondingly shortened, and the debugging efficiency and the economic efficiency are improved.

Description

technical field [0001] The invention relates to a performance debugging method of a supercharging stage and a turbofan engine. Background technique [0002] The supercharging stage is one of the important parts of the turbofan engine, which is located between the fan and the high-pressure compressor, and is used for supercharging the gas entering the interior 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 serial 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 external 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 means the increase of the bypass ratio, which can reduce the fuel consump...

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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