Electrically-driven sand discharging device for aero-engine particle separator

Abstract

The invention discloses an electrically-driven sand discharging device for an aero-engine particle separator. The electrically-driven sand discharging device comprises an impeller mechanism, a driving mechanism and a control mechanism; the impeller mechanism is connected with the driving mechanism; the driving mechanism is electrically connected with the control mechanism; the impeller mechanism is used for sucking the separated airflow containing the sand dust; the driving mechanism is used for driving the impeller mechanism to rotate; and the control mechanism is used for controlling the driving mechanism to be started or closed. The electrically-driven sand discharging device is controlled through a motor, the electrically-driven sand discharging device can be selectively started or closed according to the actual working environment, the electrically-driven sand discharging device can be closed in the non-sand-dust environment, most airflow enters an engine, the power of the engine in the non-sand-dust environment is improved, the output power of the engine can be saved, and the coupling between the electrically-driven sand discharging device and an engine transmission system is removed, so that the safety and reliability risks of the engine caused by the fault of the electrically-driven sand discharging device can be reduced to a certain extent.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to an electrically driven sand discharge device for an aeroengine particle separator. Background technique [0002] Helicopters often need to fly in some special sandy and foggy environments, such as taking off, landing and hovering in mountains, deserts, ice and snow, and the sea. The working environment of the engine is becoming more and more demanding. At this time, a large amount of sand, dust, ice and snow and other foreign objects or sea salt spray are sucked into the engine. If no protective measures are taken in advance, the dust and sand will bring serious harm to the helicopter and the engine: compressor blade abrasion and The resulting deterioration of engine performance, that is, power decline, fuel consumption rate increases, and ultimately lead to shortened service life of the engine. Therefore, an air intake protection device - Inlet Particle Separator (I...

AI Technical Summary

Problems solved by technology

In a non-sand environment, the inlet airflow contains almost no sand and dust, and there is no need to separate the sand and dust in the airflow. The blower continues to run to extract shaft power, which not only wastes engine power, but also sacrifices the inlet airflow when it is not necessary. Reduce the output power of the engine, and increase the safety and reliability risks of the engine due to blower failure

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