Standing vortex cavity rotational flow atomization device for head of flame tube

A technology of atomization device and trapped vortex chamber, which is applied in combustion methods, combustion chambers, combustion equipment, etc., can solve problems such as poor combustion stability, poor nozzle atomization level, and reduced combustion efficiency.

Active Publication Date: 2019-01-29
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. When the engine is in high working condition, the pressure in the main combustion chamber is high, and the fuel near the nozzle is relatively concentrated, causing problems such as smoke, carbon deposits, and reduced combustion efficiency;
[0006] 2. When the engine is in a small working condition

Method used

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  • Standing vortex cavity rotational flow atomization device for head of flame tube
  • Standing vortex cavity rotational flow atomization device for head of flame tube

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention relates to the field of main combustion chamber design of an aero-engine, in particular to a standing vortex cavity rotational flow atomization device for a head of a flame tube. The standing vortex cavity rotational flow atomization device comprises an outer swirler, a nozzle shell body, a supporting rod, a standing vortex cavity, an inner swirler, a main oil pipe, an auxiliary oilpipe and a fuel pipe, wherein the nozzle shell body comprises an outer cylinder, a middle cylinder body and an inner cylinder, a main nozzle is formed in the wall surface of the outer cylinder, a cooling through hole is formed in the wall surface of the standing vortex cavity, a middle air flow channel is formed between the outer cylinder and the outer swirler, a main oil cavity is formed betweenthe outer cylinder and the middle cylinder body, an auxiliary oil cavity is formed between the middle cylinder body and the inner cylinder, and an air inlet channel is formed between the inner cylinder and the standing vortex cavity. The device has the advantages that the structure is simple, staged combustion of an main combustion chamber of the aero-engine, and the defects in the prior art are solved.

Description

technical field [0001] The invention relates to the design field of the main combustion chamber of an aero-engine, in particular to a vortex cavity swirl atomization device used for the head of a flame cylinder. Background technique [0002] At present, with the development of aero-engine technology, the design of the main combustion chamber of the aero-engine tends to be high-temperature and low-pollution gradually. Many problems such as low combustion efficiency and high exhaust pollution can no longer meet the current design requirements. [0003] In order to meet the above requirements, those skilled in the art have improved the design of the swirl atomization device at the head of the flame tube in the main combustion chamber to realize the hierarchical and partitioned combustion organization, so as to meet the current requirements. [0004] At present, the swirling atomization device at the head of the flame tube in the main combustion chamber is mainly composed of a ...

Claims

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Application Information

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IPC IPC(8): F23R3/38F23R3/42
CPCF23R3/38F23R3/42
Inventor 白瑞强朱宇边际赵传亮
Owner AECC SHENYANG ENGINE RES INST
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