Aviation power system, liquid nitrogen expansion assembly, aircraft and driving method of aircraft

Abstract

The invention relates to an aviation power system, a liquid nitrogen expansion assembly, an aircraft and a driving method of the aircraft. The aviation power system comprises an air inlet part, a pressurization assembly, an air separation assembly, the liquid nitrogen expansion assembly and a power assembly; the liquid nitrogen expansion assembly comprises an expansion chamber and a guide piece; the expansion chamber comprises a first inlet, a second inlet and an expansion space, the first inlet is used for spraying liquid nitrogen output from a liquid nitrogen storage container to the expansion space, the second inlet is used for inputting pressurized air to the expansion space, the liquid nitrogen is in direct contact with the pressurized air in the expansion space to be severely gasified, so that the volume of the liquid nitrogen is expanded to form expanded nitrogen, the expanded nitrogen is guided by the guide piece to be output to the power assembly from the expansion chamber, and the expanded nitrogen pushes a turbine of the power assembly to do work and output power. The aviation power system has the advantages of zero emission, low operation cost and the like.

Description

technical field [0001] The invention relates to the field of energy and power, in particular to an aviation power system, a liquid nitrogen expansion assembly, an aircraft and a driving method thereof. Background technique [0002] Aviation power plant involves a variety of disciplines such as aerodynamics, thermal engineering, structure and strength, control, testing, computer, manufacturing technology and materials. The systems are complex and demanding, with extremely high requirements for performance, weight, serviceability, reliability, durability and environmental characteristics. Therefore, the traditional development process is a multiple iterative process of design, manufacture, test, and design modification. [0003] Traditional aerodynamic systems such as figure 1 , figure 2 As shown, the gas turbine power system 10 includes a fan 100, a compressor unit 200, a combustion chamber 300, and a turbine 400. The air enters the combustion chamber 300 after passing th...

AI Technical Summary

Problems solved by technology

However, the liquid oxygen system generally produces liquid oxygen directly from the ground and stores it in the liquid oxygen storage tank of the aircraft. However, due to the volatilization of liquid oxygen, the ground oxygen storage equipment is complicated and the maintenance cost is high.

[0006] Therefore, this field needs a kind of aviation power system, liquid nitrogen expansion assembly, aircraft and driving method thereof, to overcome above-mentioned environmental pollution and aviation kerosene cost height, non-renewable, and the high risk that is not easy to store, and existing aircraft liquid state Oxygen source system oxygen supply caused by complex ground oxygen storage equipment, high maintenance costs and other shortcomings

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