Fuel tank thermal protection structure for high-speed aircraft and high-speed aircraft having same
A technology of thermal protection structure and high-speed aircraft, which is applied to fuel tanks of power units, fuel tank safety measures, weight reduction, etc., can solve the problems of reduced fuel loading space, increased weight of fuel tank structures and thermal protection structures, etc.
Active Publication Date: 2022-05-20
BEIJING AEROSPACE TECH INST
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Problems solved by technology
[0004] The invention provides a fuel tank thermal protection structure for high-speed aircraft and a high-speed aircraft with it, which can solve the problem of more significant aerodynamic heating caused by long-duration high-speed flight in the prior art, and the weight increase of the existing fuel tank structure and thermal protection structure And the technical problem of reducing the oil filling space
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[0022] It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The following will be combined with the accompanying drawings in the embodiments of the present invention, the technical solution in the embodiments of the present invention will be described clearly and completely, it is clear that the embodiments described are only a part of the embodiment of the present invention, not all embodiments. The following description of at least one exemplary embodiment is in fact merely illustrative and in no way is intended as any restriction on the present invention and its application or use. Based on embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative labor, are within the scope of protection of the present invention.
[0023] It should be noted that the terminology used herein is only to describe a ...
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The invention provides a fuel tank heat protection structure for high-speed aircraft, the fuel tank heat protection structure is that a second fuel tank is arranged in a first fuel tank and a predetermined distance is between the first fuel tank and the second fuel tank, and the design of the first fuel tank and the second fuel tank A cavity for storing fuel is formed between the second fuel tanks. After the fuel in the cavity is used up during the aircraft's climbing phase, a gas insulation layer is formed between the first fuel tank and the second fuel tank, which can effectively reduce the impact of the aerodynamic heating of the first fuel tank on the second fuel tank. The heating heat flow of the fuel in the second fuel tank plays a certain role of heat insulation. Therefore, compared with the prior art, the thermal protection structure of the fuel tank provided by the present invention can better solve the problem that the temperature rise of the fuel meets the requirements of the thermal management system during high-speed flight, and the heat insulation form is simple and easy to implement.
Description
Technical field [0001] The present invention relates to the field of brake technology, in particular to a fuel tank thermal protection structure for high-speed aircraft and a high-speed aircraft having a high-speed aircraft thereof. Background [0002] At present, under the condition of high-speed long-flight time flight, the outer wall of the fuselage aerodynamic heating, the fuselage intake tract, engine, equipment heating is serious, in order to ensure the normal operation of the fuselage structure and cabin equipment, thermal management measures need to be used to achieve the collection, transmission, utilization and discharge of aircraft heat, and the fuel as an effective cold source of the aircraft thermal management system, the fuel tank thermal protection structure needs to ensure that the temperature rise of the fuel during flight meets the needs of the thermal management system. [0003] With the increase of aircraft speed and lengthening of the flight time, the aircraf...
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IPC IPC(8): B64D37/06B64D37/32
CPCB64D37/06B64D37/32Y02T50/40
Inventor 杨晓东金亮刘海涛林晔郭威
Owner BEIJING AEROSPACE TECH INST