Flow-adjustable centrifugal fuel nozzle of engine

A fuel nozzle and engine technology, applied in the direction of combustion chamber, combustion method, combustion equipment, etc., can solve the problems of irreversible debugging process, long debugging cycle, and difficult to adjust the product performance to a high level, so as to save production time and reduce The effect of workload and difficulty reduction

Active Publication Date: 2018-08-10
CHENGDU HOLY AVIATION SCI & TECH
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  • Abstract
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  • Claims
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Problems solved by technology

Existing fuel nozzles are generally of a fixed structure. After processing and assembly, the flow angle and other indicators are fixed. In the later stage of experimental debugging, to change the flow angle and other indicators, the relevant dimensions of the nozzle must be changed. The debugging process is irreversible and the debugging cycle is long. , and the performance of a batch of products is difficult to adjust to a high degree of consistency

Method used

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  • Flow-adjustable centrifugal fuel nozzle of engine
  • Flow-adjustable centrifugal fuel nozzle of engine

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0015] Such as figure 1 , figure 2 As shown, an engine centrifugal fuel nozzle with adjustable flow rate includes a nozzle housing 5, a swirler 1, a spout 3, and an adjustable screw 6. The nozzle housing 5 is a hollow structure, and the inside of the nozzle housing 5 An internal thread is provided, and an external thread is provided on the lower part of the outer wall of the spout 3, and the external thread of the spout 3 is connected with the internal thread of the nozzle housing 5. The spout 3 is provided with an inner cavity, and the inner cavity is cylindrical, and the inner cavity of the spout 3 The lower part of the adjustable screw 6 is provided with an internal thread, and the outside of the adjustable screw 6 is provided with an external thread, and the external th...

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Abstract

The invention discloses a flow-adjustable centrifugal fuel nozzle of an engine. The centrifugal fuel nozzle comprises a nozzle shell body, a swirler, a spraying opening and an adjustable screw, wherein the nozzle shell body is of a hollow structure, internal threads are arranged in the nozzle shell body, and external threads are correspondingly arranged on the lower half section of the spraying opening; the spraying opening is connected with the nozzle shell body through the threads, and an inner cavity is formed in the spraying opening; the inner cavity is cylindrical, internal threads are arranged on the lower half section of the inner cavity, and external threads are arranged on the adjustable screw; and the adjustable screw is arranged in the inner cavity in a threaded connection manner, and the swirler is arranged above the adjustable screw. The flow-adjustable centrifugal fuel nozzle of the engine has the advantages that the workload of experiment debugging can be greatly reduced, the production time can be greatly saved for batch production, and meanwhile, the structure of the fuel nozzle can greatly reduce the difficulty of product maintenance.

Description

technical field [0001] The invention relates to the field of aeroengines, in particular to an engine centrifugal fuel nozzle with adjustable flow. Background technique [0002] As an important part of the engine combustion chamber, the fuel nozzle's high quality and stable and reliable performance are of great significance to the aero-engine, and its working performance directly affects the power, fuel economy and reliability of the engine. Existing fuel nozzles are generally of a fixed structure. After processing and assembly, the flow angle and other indicators are fixed. In the later stage of experimental debugging, to change the flow angle and other indicators, the relevant dimensions of the nozzle must be changed. The debugging process is irreversible and the debugging cycle is long. , and the performance of a batch of products is difficult to adjust to a high degree of consistency. Contents of the invention [0003] The object of the present invention is to overcome...

Claims

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Application Information

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IPC IPC(8): F23R3/38
CPCF23R3/38
Inventor 伍文峰吴建华钟柳花杨震
Owner CHENGDU HOLY AVIATION SCI & TECH
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