Aerospace low-noise engine

Abstract

The invention relates to the technical field of aerospace equipment, and discloses an aerospace low-noise engine. The aerospace low-noise engine comprises a shell, a transverse rod is arranged on theleft side of the interior of the shell, a low-pressure air compressor is fixedly installed in the middle of an inner cavity of the shell, the left end of the low-pressure air compressor extends to aninner cavity of the transverse rod and is fixedly provided with a rotating rod, the left end of the rotating rod extends to the outside of the shell and is fixedly arranged with a propeller shaft in asleeve mode, and the outside of the rotating rod is fixedly arranged with a reduction gear located in the inner cavity of the transverse rod in a sleeve mode. According to the aerospace low-noise engine, an air inlet pipe and a breather pipe communicate with the cross rod, so that the air pressure difference caused in a high-speed operation process of a propeller can drive a sliding block to do reciprocating contraction motion, the air pressure difference inside and outside the engine is relieved, the problem that external pressure drives the whole engine to vibrate due to the fact that the internal and external air pressure difference of the engine is too large is avoided, and therefore noise of the whole engine can be reduced in the aspect of pressure difference.

Description

Technical field [0001] The invention relates to the technical field of aerospace equipment, in particular to a low-noise engine for aerospace. Background technique [0002] Although the development of aerospace is closely related to military applications, what is more important is that the tremendous progress made by mankind in this field has had a significant impact on many sectors of the national economy and many aspects of social life, and has changed the face of the world. , Aerospace vehicles are the most important equipment in the development of aerospace. [0003] The engine in aerospace aircraft is the final component of the aircraft. Existing aircraft engines use fuel to make the rotor run at a high speed during operation to provide flight power. Due to the high-speed operation of the rotor inside the engine, the airflow inside the engine is high. The movement creates a very high air pressure difference between the inside and outside of the engine. At the same time, the m...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a low-noise engine for aerospace, which has the advantages of reducing engine noise, etc., and solves the problem that the existing aircraft engine uses fuel to make the rotor run at high speed during operation to provide flight power. The high-speed operation of the rotor inside the engine causes the airflow inside the engine to move at a high speed, resulting in a very high air pressure difference inside and outside the engine. At the same time, the movement of the rotor drives the internal mechanism to vibrate at high speed, and finally makes a lot of noise, which greatly affects the passengers inside the aircraft. the rest of the problem

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