Ventilated and cooled fairing structure

Abstract

The invention belongs to the field of helicopter / aircraft structure design, and relates to a ventilated and cooled fairing structure. The structure comprises a fairing (1), a ventilation intake pipe (2), an air intake grille (3) and an annular cushion plate (4). The invention provides a fairing structure with ventilation and cooling functions capable of controlling the intake direction and the flow rate of cold air in the fairing. The design scheme can provide normal working environment for the surrounding structure of the high-power engine in the limited space, and avoid insufficient heat dissipation of the engine due to the space restriction, which affects the normal work of the surrounding structure components. Ventilation intake pipe can control the intake direction and velocity of cold air in the fairing, and improve the ventilation cooling efficiency in the fairing.

Description

technical field [0001] The invention belongs to the field of helicopter / aircraft structure design, and relates to a fairing structure capable of ventilation and cooling. Background technique [0002] At home and abroad, for helicopters / aircraft equipped with high-power engines, there are two solutions to solve the problem of ventilation and cooling of structural components around the high-power engines. The first solution is to increase the space in the engine compartment, and the space in the engine compartment is sufficient to provide sufficient space for high-power engines. Heat dissipation space; scheme 2, active ventilation and cooling design scheme, provides ventilation and cooling equipment for high-power engines, uses the pressure difference inside and outside the engine compartment to exchange hot and cold air in the engine compartment, so as to achieve the purpose of heat dissipation and cooling. Option 1, increasing the space of the engine compartment requires a l...

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Problems solved by technology

Option 1, increasing the space of the engine compartment requires a lot of design time and cost, which greatly increases the design cost and post-manufacturing cost; Option 2, the existing helicopter fairing structure has no ventilation and cooling channels, and the ventilation and cooling efficiency is low, which cannot guarantee replacement The ventilation volume in the power compartment behind the engine, in order to ensure the ventilation and cooling efficiency in the engine compartment, it is necessary to control the intake direction and flow rate of the cold air in the fairing to ensure that the high-power engine can work normally in a limited space

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