Testing device and method for aircraft fuel system in simulated high altitude environment

Abstract

The invention provides a testing device for an aircraft fuel system in a simulated high altitude environment, comprising a low temperature gas supply system, a vacuum pumping system and a fuel system, wherein the low temperature gas supply system is used for creating a low temperature environment of the simulated high altitude; the vacuum pumping system is used for pumping air out of a pressure-proof fuel tank to create a low pressure environment of the simulated high altitude; the fuel system comprises the pressure-proof fuel tank, a fuel pump and an engine which are sequentially arranged; the low temperature gas supply system realizes the purpose of cooling fuel in the pressure-proof fuel tank through a plate type heat exchanger; and the vacuum pumping system is connected with the pressure-proof fuel tank. Accordingly, the invention also provides a testing method for the aircraft fuel system in the simulated altitude environment. Therefore, by adjusting the working pressure and temperature of the fuel system, the low temperature and low pressure environment of the high altitude is simulated, and working parameters of the fuel system are recorded, thereby analyzing and testing the fuel system.

Description

Technical field [0001] The invention relates to the technical field of fuel system testing, in particular to a test device and method for simulating the fuel system of an aircraft in a high-altitude environment. Background technique [0002] With the rapid application and development of aviation technology, more and more military and civilian fields have applied aviation methods to improve efficiency and save costs, such as search and rescue, broadcast, investigation, medical rescue, and so on. As the flight altitude increases, the ambient temperature and pressure gradually decrease. In order to maintain the flight safety and performance of the aircraft, it is necessary to conduct simulation tests on the components of the aircraft in the early stage. Existing tests are mostly based on empirical calculations or environmental chamber simulations. The working conditions of components can be calculated through empirical formulas, but there are still errors in accuracy. Environmental ...

AI Technical Summary

Problems solved by technology

Most of the existing tests are based on empirical calculations or environmental chamber simulations. The working conditions of components can be preliminarily calculated through empirical formulas, but there are still errors in the accuracy; and environmental chamber simulations also have the disadvantages of high cost and complex systems

Especially for the test of the aircraft fuel system, since the fuel system is the core component of the aircraft, if there are errors in the test, there will be hidden dangers in the flight of the aircraft

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