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Aircraft fuel system

A technology for aircraft and fuel tanks, which is applied to the fuel tank of the power unit, etc., can solve the problem that it is difficult to run out of fuel in the fuel tank, achieve the effect of shortening the refueling time and ensuring the weight balance

Inactive Publication Date: 2016-03-30
XIAN AIRCRAFT BRANCH OF XIAN AIRCRAFT INT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the difference in engine fuel consumption and the installation position of the fuel tank, the left and right fuel tanks are loaded differently. In order to ensure that the weight of the aircraft is balanced within a certain range, it is difficult to use up the fuel in each group of fuel tanks at the same time.

Method used

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  • Aircraft fuel system

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Such as figure 1 As shown, a kind of aircraft fuel system comprises fuel tank, engine fuel supply pipeline 13, pressure refueling pipeline 15, fuel tank output pipeline 14, fuel supply main pipe 16; Fuel tank is multiple groups, is respectively installed in wing and fuselage The front section and the rear section include wing left fuel tank group 4, wing right fuel tank group 3, fuselage front section fuel tank group 1, fuselage rear section fuel tank group 2, left central wing fuel tank 7, and right central wing fuel tank 6; each The fuel tank is connected to the oil supply main pipe 16 through two parallel fuel tank output pipelines 14 and the pressure refueling pipeline 15; after the fuel oil enters the oil supply main pipe 16, it is diverted to each fuel tank through the pressure refueling pipeline 15, and the fuel tank is filled. ...

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Abstract

The invention provides a new fuel system which comprises a fuel tank, an engine fuel supply pipeline, a pressure refueling pipeline, a fuel tank delivery pipeline and a fuel supply and delivery main pipe, wherein the pressure refueling pipeline and the fuel tank delivery pipeline are provided with adjustable throttle valves and pressure sensors. When fuel is supplied to an engine of an aircraft, the fuel flows of a left fuel tank unit of wings and a right fuel tank unit of the wings or a fuel tank unit of a front fuselage and a fuel tank unit of a rear fuselage can be simultaneously adjusted so as to ensure that the position of the center of gravity of the aircraft is not changed. The fuel system provided by the invention not only can meet the operating requirements of the aircraft but also can increase the refueling speed according to the existing control means so as to balance fuel supply of the engine and effectively improve the efficiency of the fuel system.

Description

technical field [0001] The invention relates to aircraft design and manufacturing technology, in particular to an aircraft fuel system. Background technique [0002] The fuel system of a certain type of aircraft inherits the main design of the fuel system, and all fuel is stored in 27 rubber soft fuel tanks. These tanks are divided into groups of 10, with 5 groups per power unit. The tanks of each group are connected to each other and form a total group of connected tanks. There is a consumable fuel tank in each group of fuel tanks. [0003] Introduction of pressure refueling, engine oil supply, and emergency oil draining functions of a certain fuel system: [0004] An aircraft fuel system follows its series of aircraft fuel systems, mainly through one-way valves, refueling valves (including refueling switches and fixed orifice plates), fire switches, fuel electric switches, fuel supply lines, pressure refueling lines, etc. , to ensure that the fuel flows in a specific p...

Claims

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Application Information

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IPC IPC(8): B64D37/18B64D37/16
CPCB64D37/18B64D37/16
Inventor 徐波徐涛徐建伟
Owner XIAN AIRCRAFT BRANCH OF XIAN AIRCRAFT INT
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