Double-duct turbine engine device capable of reducing air injection noise

Abstract

The invention discloses a double-duct turbine engine device capable of reducing air injection noise. The double-duct turbine engine device is used for cleaning an outer duct of a double-duct turbine engine and comprises a base, an upper frame and a movable frame located between the base and the upper frame, wherein guide rods are arranged on the periphery of the movable frame in a sliding manner;the upper ends of the guide rods are fixedly connected to the upper frame; the lower ends of the guide rods are fixedly connected to the base; a first sliding chute with an opening toward the left isformed in the movable frame; a first sliding frame is arranged in the first sliding chute in a sliding manner; a rotating cavity with an opening toward the left is formed in the first sliding frame; arotating block is rotatably arranged in the rotating cavity in a matching manner; fixed sleeves which are symmetrical up and down are fixedly arranged on the left end surface of the rotating block; rectangular grooves which extend through left and right are formed in the fixed sleeves; sliding bars are arranged in the rectangular grooves in a sliding manner; spring leaves which are symmetrical upand down are fixedly arranged on the left end surface of each sliding bar; and flexible cleaning blocks are fixedly arranged at one ends, far away from the sliding bars, of the spring leaves.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a double-duct turbine engine device capable of reducing jet noise. Background technique [0002] The full name of the turbofan engine is the turbofan engine (Turbofan), which is a kind of aircraft engine, developed from the turbojet engine (Turbojet). Compared with the turbojet, the main feature is that the first-stage compressor has a large area and is used as an air propeller (fan) to push part of the inhaled air back through the periphery of the jet engine. The part through which the air of the core part of the engine passes is called the inner duct, and the outer part of the core engine where only the fan air passes is called the outer duct, and the cleanliness of the inner wall of the outer duct determines the noise level during jetting to a certain extent. Therefore, The inner wall of the outer duct is often cleaned, and the traditional cleaning method is to manually inser...

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Problems solved by technology

The part through which the air of the core part of the engine passes is called the inner duct, and the outer part of the core engine where only the fan air passes is called the outer duct, and the cleanliness of the inner wall of the outer duct determines the noise level during jetting to a certain extent. Therefore, The inner wall of the outer duct is often cleaned, and the traditional cleaning method is to manually insert the cleaning cloth into the outer duct for operation, but this operation method has certain safety hazards, and the cleaning effect is poor and inefficient. Meet the use

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