Oil transportation heat management integrated system for controlling fuel oil temperature rise of high-speed aircraft

Abstract

The invention provides an oil transportation heat management integrated system for controlling fuel oil temperature rise of a high-speed aircraft. The oil transportation heat management integrated system comprises a main oil tank, a built-in oil tank, an oil pump, a first oil pipe, a second oil pipe, a supporting frame and an air inlet pipe. Oil tank pressurized gas enters the main oil tank from the gas inlet pipe to provide pressure for fuel oil in the main oil tank, so that the fuel oil is conveyed to the built-in oil tank from the main oil tank through the first oil pipe, then is conveyed to the oil pump through the second oil pipe, and finally is supplied to an engine through the oil pump. According to the technical scheme, the built-in oil tank is arranged in the main oil tank, the temperature of fuel oil at the flight tail section of the long-endurance high-speed aircraft can be effectively reduced, and the effects of reducing the cavitation risk of a fuel oil pump, reducing thepressurization pressure of a fuel oil tank, reducing the design difficulty of oil passing equipment, increasing available fuel oil heat sinks of an engine and the like can be achieved. The method canbe applied to high-speed aircrafts such as high-speed aircrafts and aerospace aircrafts.

Description

technical field [0001] The invention relates to the technical field of high-speed aircraft fuel delivery and thermal management, in particular to an integrated fuel delivery thermal management system for controlling the temperature rise of high-speed aircraft fuel. Background technique [0002] At present, the fuel tank body of the existing high-speed aircraft is not only used for storing fuel oil, but also plays the role of carrying the aircraft. Due to the high flight speed and severe aerodynamic heating, the temperature of the fuel in the cabin continues to rise after a long flight; especially at the end of the flight, the amount of fuel decreases and the temperature rise of the fuel accelerates. Elevated fuel temperature will make the pump inlet more prone to cavitation, and will also increase the risk of overtemperature failure of the oil passage valve. For high-speed aircraft that use fuel for active engine cooling, increased fuel temperature also increases the risk o...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an integrated fuel delivery thermal management system for controlling the fuel temperature rise of high-speed aircraft, which can solve the problem of cavitation and overheating of fuel valves in high-speed aircraft fuel pumps in the prior art without reducing the fuel loading space. Technical problems of failure and engine wall overheating

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