Oil tank thermal protection structure for high-speed aircraft and high-speed aircraft with the same
A technology of thermal protection structure and high-speed aircraft, which is applied to fuel tanks of power units, safety measures for fuel tanks, weight reduction, etc., can solve the problems of reduced fuel loading space, increased weight of fuel tank structures and thermal protection structures, etc., and achieves thermal management. System Requirements, Adiabatic Form and Ease of Implementation, Effect of Adiabatic Form Simple
Active Publication Date: 2020-09-29
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 case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0023] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...
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The invention provides an oil tank thermal protection structure for a high-speed aircraft. According to the oil tank thermal protection structure, a second oil tank is arranged in a first oil tank, and a preset distance is reserved between the first oil tank and the second oil tank; and a cavity used for storing fuel oil is designed to be formed between the first oil tank and the second oil tank,after the fuel oil in the cavity is used up in an aircraft climbing stage, a gas heat insulation layer is formed between the first oil tank and the second oil tank, a heating heat flow of pneumatic heating of the first oil tank to the fuel oil in the second oil tank can be effectively reduced, and a certain heat insulation effect is achieved. Therefore, compared with the prior art, the oil tank thermal protection structure provided in the invention can better solve a problem that a temperature rise of the fuel oil in a high-speed flight process meets requirements of a thermal management system, and a thermal insulation form is simple and easy to realize.
Description
technical field [0001] The invention relates to the technical field of brakes, in particular to a fuel tank thermal protection structure for high-speed aircraft and a high-speed aircraft with the same. Background technique [0002] At present, under the condition of high-speed and long-endurance flight, the outer wall of the airframe is aerodynamically heated, and the air intake, engine, and equipment in the airframe are seriously heated. The collection, transmission, utilization and dissipation of fuel, and fuel as an effective cooling source for the aircraft thermal management system, the thermal protection structure of the fuel tank needs to ensure that the temperature rise of the fuel during flight meets the requirements of the thermal management system. [0003] With the increase of aircraft speed and flight time, the aircraft puts forward higher requirements for the lightweight of the structure and thermal management system and the fuel storage space. However, the aero...
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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