Side-by-side distribution-typed oil tank system

A distributed and fuel tank technology, applied in the direction of the fuel tank of the power plant, can solve the problems of aircraft control and trim, the position of the center of gravity of the aircraft, insufficient problems, etc., and achieve the effect of uniform weight distribution of the lateral structure

Inactive Publication Date: 2012-02-22
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the obvious change of the center of gravity position of the flying wing layout aircraft in the prior art due to fuel consumption, resulting in the deficiencies of the aircraft control and trim problems, the present invention aims at the small flying wing layout on the bas...

Method used

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  • Side-by-side distribution-typed oil tank system
  • Side-by-side distribution-typed oil tank system
  • Side-by-side distribution-typed oil tank system

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] This embodiment is a fuel system for a small-sized twin-engine turbojet flying-wing unmanned aerial vehicle. The total take-off weight of the aircraft is about 45kg, and the total fuel weight is 11kg.

[0022] Such as image 3 Shown, the present invention comprises seven oil tanks altogether, is connected together in order to form oil supply system. All fuel tanks are made of fiberglass. Such as Figure 4 As shown, No. 1, 2, 4, and 5 fuel tanks all reserve one hole on the side and the center of the upper surface; No. 3 fuel tank has one hole on each side and two holes on the upper surface; Figure 5 As shown, one hole is left on the upper and lower surfaces of No. 6 and No. 7 anti-bubble fuel tanks, and one hole is left on the front side; the diameter of all holes is 16mm.

[0023] Such as Image 6 As shown, the connecting piece 1 is made of...

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Abstract

The invention discloses a side-by-side distribution-typed oil tank system, which is characterized in that: five oil tanks are sequentially distributed along the longitudinal direction of an airplane and are symmetrically distributed along a longitudinal axis and a transverse axis in an axon system adopting the gravity center of the airplane as an origin, two bubble-preventing oil tanks or counterweights are symmetrically distributed on the left side and the right side of the airplane, all oil tanks are sequentially connected with each other through connecting pieces and flexible rubber oil pipes according to a stipulated oil supply path, so the obvious variation of the position of the gravity center of the airplane with a flying swing layout caused by the consumption of the fuel oil can be overcome; and under the situation that the oil is non-uniformly absorbed because of stalling of one engine at one side of the airplane or asymmetric power of the engines at two sides of the airplane during flying, the position of the gravity center of the airplane can be maintained constant. In addition, the side-by-side distribution-typed oil tank system is simple to produce, has low cost and short period, is practical and reliable and is convenient to use, different fuel systems with different sizes can be produced according to a specific size of the airplane, and the side-by-side distribution-typed oil tank system is particularly suitable for the small-sized turbo-jet flying-swing layout unmanned proof airplane.

Description

technical field [0001] The invention relates to a fuel tank system, in particular to a fuel tank system designed for a small flying-wing layout unmanned aerial vehicle. Background technique [0002] Compared with the conventional layout aircraft, the flying wing aerodynamic layout mainly has the advantages of weight reduction and drag reduction. However, the adoption of the flying wing layout also brings a series of problems, such as weak longitudinal stability, the sensitivity of the aircraft to the position of the longitudinal center of gravity, the problem of longitudinal trimming and so on. In recent years, various researches on flying-wing layout aircraft have been carried out gradually in China. With the rapid development of remote control aircraft technology and automatic control technology, scaled-down aircraft flight test technology has attracted more and more attention because of its low cost, low risk and short cycle characteristics. [0003] For small flying wi...

Claims

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Application Information

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IPC IPC(8): B64D37/04
Inventor 张炜徐孝武蒋坤吕佩剑张冰融
Owner NORTHWESTERN POLYTECHNICAL UNIV
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