Fuel manifold with centrifugal nozzles arranged in layered manner
A centrifugal nozzle and fuel manifold technology, applied in the combustion chamber, combustion method, combustion equipment and other directions, can solve the problems affecting the stable and safe operation of the engine, fuel deposition in the pipe, changing the flow characteristics, etc., to improve the local oil-rich condition, The effect of enhanced atomization and enhanced ignition performance
Active Publication Date: 2020-03-27
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
The thermal load of the fuel increases accordingly, and in severe cases, it will cause fuel deposition and coking in the pipe, thereby changing the flow characteristics and affecting the stable and safe operation of the engine
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[0018] The present invention will be further described now in conjunction with accompanying drawing:
[0019] combine figure 1 , figure 2 , image 3 , The invention provides a fuel oil main pipe structure with layered arrangement of centrifugal nozzles. figure 1 It is an overall schematic diagram of a fuel manifold with layered arrangement of centrifugal nozzles, figure 2 It is an axial front view of a fuel manifold with layered arrangement of centrifugal nozzles, image 3 It is a schematic diagram of stratified fuel pipes.
[0020] fuel through figure 1 (2) The oil inlet pipe shown in (2) enters figure 2 After the fuel main pipe shown in (1), pass through image 3 (2) The fuel pipes shown in (2) enter into different layers figure 1 In the fuel nozzle shown in (5), the fuel is atomized and ingested into the combustion chamber for ignition and combustion. The fuel range is wider, which improves the fuel combustion efficiency and economy. At the same time, the fuel ...
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The invention provides a fuel manifold structure with centrifugal nozzles arranged in a crossed mode and relates to the field of aero-engine combustion chambers. The fuel manifold comprises an oil inlet pipe, a fuel manifold main body, a fuel oil branch pipe and centrifugal nozzles. According to the invention, the centrifugal nozzles are arranged layer by layer according to a certain rule, so thefuel injection area is greatly increased; the fuel oil atomization effect and the ignition performance of the fuel oil are also enhanced; different from the integrated design of a conventional fuel oil main pipe, the provided fuel manifold is formed by connecting the two semi-circular rings, so that the fuel manifold is convenient to disassemble, the problems of assembly, shape correction and assembly stress can be well solved, and inspection and maintenance of a combustion chamber are facilitated.
Description
technical field [0001] The invention belongs to the field of gas turbine engines, and in particular relates to a fuel oil main pipe with centrifugal nozzles in a novel arrangement. Background technique [0002] As one of the key components of the aero-engine, the combustor is located between the compressor and the turbine. Its function is to release the heat from the chemical energy of the fuel through combustion, and the heat generated will do work and be converted into the thrust of the engine. Therefore, The reliability, economy and life of the engine largely depend on the reliability and combustion efficiency of the combustion chamber, and in the combustion of the combustion chamber, the performance of the fuel supply device largely determines the combustion stability of the combustion chamber . [0003] In the working process of the combustion chamber of an aero-engine, it mainly relies on the fuel system to regulate and supply fuel, so the position of the fuel system ...
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IPC IPC(8): F23R3/28
CPCF23R3/28
Inventor 张群程祥旺李小龙胡凡
Owner NORTHWESTERN POLYTECHNICAL UNIV