Aero-engine and air inlet system thereof

Abstract

The invention discloses an aero-engine and air inlet system thereof. The aero-engine comprises a pressure stabilizing box, a carburetor A, a carburetor B, an air inlet manifold A and an air inlet manifold B, wherein the air inlet is formed in the middle of the pressure stabilizing box; an air outlet A and an air outlet B are formed in the two ends of the pressure stabilizing box respectively; the air outlet A of the pressure stabilizing box is connected with the carburetor A; the carburetor A is connected with the inlet manifold A; the air outlet B of the pressure stabilizing box is connected with the carburetor B; the carburetor B is connected with the air inlet manifold B; filter screens are arranged in the air outlet A and the air outlet B respectively; and protruding flow dividing pieces are arranged on the inner wall of the air inlet end of the air inlet manifold A and the inner wall of the air inlet end of the air inlet manifold B. Through the organic combination of the uniform filter screens and the flow dividing pieces, the stable operation of the air inlet system of the aero-engine can be ensured under the requirements of limited space and light weight.

Description

[0001] This application is a divisional application of an invention patent application with an application date of "July 8, 2020", an application number of "202010650782.9", and an invention title of "Aero-engine and its air intake system". technical field [0002] The invention relates to an air intake system, in particular to an air intake system of a four-cylinder horizontally opposed aero-engine. Background technique [0003] In existing four-cylinder engines, each cylinder body is usually connected with an air source respectively. Such an arrangement is suitable for the motor vehicle industry with relatively large layout space. [0004] Aeroengine air intake system is the core component to ensure efficient and stable air intake of the engine. A key indicator for evaluating the engine intake effect is the airflow consistency (intake uniformity) provided by the intake system to each cylinder of the engine. At present, in order to reduce the size and weight of the air in...

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Problems solved by technology

[0006] However, in the above-mentioned patent, the two cylinders on the left use one air source, and the two cylinders on the right use another air source. In this way, it cannot meet the lightweight requirements of the aero-engine, and when the space layout takes up too much space

When the engine operating conditions change, it cannot meet the requirements of the consistency of intake air in each cylinder of the engine

During use, there will be a phenomenon that the 3 / 4 cylinder intake air is too rich under high throttle conditions, and the 3 / 4 cylinder intake air is too lean under low throttle conditions.

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