Onboard minitype high-pressure compressor

Abstract

The invention provides an onboard minitype high-pressure compressor. Integrated design is achieved by fully combining the beneficial effects of speed type compression and piston type compression. A wind wheel and a swash plate plunger are simultaneously driven to move through a direct current motor, air is subjected to speed type initial compression through rotation of the wind wheel, the air suction capacity is high, the flow is high, a high-pressure air source is provided for piston type compression, and the motor and an air cylinder in piston type compression can be subjected to forced aircooling. A variable-section swash plate plunger type multistage boosting manner is adopted for piston type compression, the system pressure ratio is increased, it is guaranteed that gas is sequentially boosted through one-way valves, and finally high-pressure gas is output. By means of the structural manner, the size and the weight are small, minitype design is achieved, the cooling effect is good, the working efficiency is also greatly improved, and high-pressure air can be online provided for combat aircrafts in high airspace in real time.

Description

technical field [0001] The invention relates to an airborne miniature high-pressure compressor, which mainly compresses air in the airspace of a fighter plane to provide continuous high-pressure compressed gas for the fighter plane. Background technique [0002] The on-board miniature high-pressure compressor is mainly to provide continuous high-pressure compressed air for weapon ejection, infrared seeker and thermal imaging equipment cooling in the stealth fighter cabin. The on-board miniature high-pressure compressor should have high output pressure (35Mpa), light weight, small size, low power consumption, high reliability, good stability, and strong environmental adaptability, which will enable the compressor to achieve high-pressure, high-efficiency miniaturization posed great challenges. Since the flying altitude of fighter jets can reach more than 12,000 meters, as the altitude increases, the absolute pressure, density, temperature, dynamic viscosity, and speed of sou...

AI Technical Summary

Problems solved by technology

At an altitude of 12,000 meters, the atmospheric pressure is only 1 / 5 of the atmospheric pressure on the ground, which not only increases the pressure ratio of the compressor by more than 5 times, but also directly affects the opening of the primary intake check valve for positive displacement compressors. In turn, the intake mass flow rate is greatly reduced, resulting in an exponential drop in compression efficiency

The gas will generate a lot of heat in the process of being compressed, and the heat production will also increase greatly with the increase of the pressure ratio. However, the heat dissipation conditions in the high-altitude airspace are poor, causing the temperature of the compressor to rise rapidly, which will not only damage the structure and The seal has a big impact, and it can also seriously affect the compression efficiency and even cause mechanical failure

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