Inlet distortion device of aircraft engine

Abstract

The invention discloses a depth-adjustable inlet distortion device of an aircraft engine. The distortion device is installed between an inlet channel and a horn mouth of the engine and mainly comprises two quick release rings, a plug plate base and a plug plate. One quick release ring is connected with the horn mouth, the other quick release ring is fixedly connected with the inlet channel through a sealing ring, the circular end of the lower portion of the plug plate base and the quick release rings are fixedly connected into an integral structure, the upper portion of the plug plate base is of a square structure, the width of the plug plate base is the same as the diameter of the inlet channel, a square plug plate groove is formed in the plug plate base, the plug plate groove is provided with a plug plate sealing block and a positioning clamp, the plug plate can be fixed after being inserted in the plug plate groove, the plug plate is fixed at any position in the plug plate groove, then, shielding of the plug plate in the inlet channel at different depths is achieved, and multiple sets of distortion indexes are produced. The plug plate depth can be adjusted, the inlet indexes of the engine are changed, and engine stability examination is carried out under different distortion indexes; and a clamping ring structure is adopted, so that work is reliable, disassembly and assembly are simple, and the test run efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of aero-engines, in particular to an aero-engine intake distortion device. Background technique [0002] Air intake distortion tests are required in the design of aeroengines to calculate the engine's anti-distortion capability. However, due to the fixed state of the engine in batch production, this inspection is not required. In recent years, frequent surge failures have occurred in the use of engines in the field. Due to the deviation of production quality, the anti-distortion ability of some engines has deteriorated, and surge failures have occurred during use. In view of this situation, an air intake distortion device for aero-engines is proposed. It can be used on mass-produced engines, and can effectively screen out engines with poor anti-distortion capabilities. Contents of the invention [0003] The object of the present invention can effectively screen out engines with poor anti-distortion abili...

AI Technical Summary

Problems solved by technology

In recent years, frequent surge failures have occurred in the use of engines in the field. Due to deviations in production quality, some engines have poor anti-distortion capabilities, and surge failures have occurred during use. In view of this situation, an air intake distortion device for aeroengines is proposed. It can be used on mass-produced engines, and can effectively screen out engines with poor anti-distortion ability

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