Method for long-term storage of starting fuel for aircraft turbofan engine

A turbofan engine and engine technology, applied in the directions of engine components, container filling method, container discharge method, etc., can solve problems such as unfavorable reliable ignition work of aircraft, lack of fuel in fuel system, etc., and achieve long-term maintenance-free and stable fuel quality. , Reliable effect of ignition and starting

Active Publication Date: 2019-11-15
BEIJING POWER MACHINERY INST
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Problems solved by technology

However, during the storage of dehydrated and deoxygenated fuel, especially during the filling process of the fuel system, there is a risk of moisture, oxygen, and nitrogen re-infiltrating. This will lead to a partial lack of fuel in the fuel system, which is not conducive to the reliable ignition of the guided aircraft under high-altitude and low-temperature conditions.

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  • Method for long-term storage of starting fuel for aircraft turbofan engine
  • Method for long-term storage of starting fuel for aircraft turbofan engine
  • Method for long-term storage of starting fuel for aircraft turbofan engine

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Embodiment Construction

[0041] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0042]The invention provides a scheme for long-term storage of starting fuel for a turbofan engine used in aircraft. The scheme includes long-term storage of starting fuel; long-term reliable storage structure design of the engine fuel system; filling and sealing process of the engine fuel system and related equipment.

[0043] How to store starting fuel:

[0044] The fuel system of a turbofan engine for aircraft is a high-precision executive control system, which has extremely high requirements on the cleanliness of the fuel. Ordinary fuel will be in contact with active metals in the fuel system for a long time, and will deteriorate after storage, causing the actual colloid and sedimentation of the fuel to exceed the ...

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Abstract

The invention relates to an aircraft turbofan engine starting fuel long-time storage method, and relates to the technical field of aircraft turbofan engine long-time storage. Based on the oil seal standard and norm of an aero-engine fuel system, aircraft turbine engine development, production and storage experiences are combined; and through a lot of experimental analysis statistics, a system structure for aircraft turbofan engine starting fuel long-time storage is designed, an aircraft turbofan engine starting fuel filling and sealing process is formulated, the aircraft turbofan engine long-time storage is realized, and the aircraft use demands are met through once ignition success. The method is used for the technical field of aircraft turbofan engine long-time storage, greatly improvesthe aircraft turbofan engine long-time no maintenance, and achieves the purpose of once use reliability. Stable and normal fuel quality in the fuel system and reliable engine ignition starting in theaircraft turbofan engine long-time storage of more than 16 years are guaranteed.

Description

technical field [0001] The invention relates to the technical field of long-term storage of turbofan engines for aircraft, in particular to a method for long-term storage of starting fuel for turbofan engines for aircraft. Background technique [0002] Turbine engines for aircraft have the characteristics of long-term storage and one-time use. They have high requirements for fast start-up and reliability. After the engine is installed in the aircraft, there is no ground cooling operation. The fuel system of the delivered engine must be filled with fuel. Storage will cause aging and deterioration, generating solid particles and colloids. At the same time, the acid value will increase, resulting in increased pipeline flow resistance and corrosion of fuel pipelines. By dehydrating and deoxidizing ordinary jet fuel, the water content and oxygen content can be significantly reduced, and the long-term storage and low temperature adaptability of jet fuel can be improved. It has bee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02C7/22F17C5/00F17C13/02F17D3/01
CPCF17C5/00F17C13/025F17D3/01
Inventor 蒋紫春杨旭赵英
Owner BEIJING POWER MACHINERY INST
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