一种径向进气旋流式细管预混燃油喷嘴

赵巍; 韩品连; 张坤

赵巍

南方科技大学

南方科技大学

518000 广东省深圳市南山区西丽学苑大道1088号

嘉兴意动能源有限公司

314000 浙江省嘉兴市秀洲区油车港镇东方北路1282号-185 (浙江,嘉兴,秀洲区)

嘉兴意动能源有限公司

314000 浙江省嘉兴市秀洲区油车港镇东方北路1282号-185 (浙江,嘉兴,秀洲区)

CN201611217585.8

2016-12-26

CN107023854B

2019-08-23

2019-08-23

授权 ; 权利转移

2019-08-23

授权发明

第一

本发明公开了一种径向进气旋流式细管预混燃油喷嘴，属于航空发动机技术领域。本发明包括喷嘴本体、燃料管和混流细管，喷嘴本体内部设置有贯穿该喷嘴本体的预混管，预混管包括彼此连通的进气管段和预混管段,燃料管与喷嘴本体采用增材制造技术一体成型，燃料管位于喷嘴本体内部的管壁上设置有混流孔,混流细管一端与预混管连通，另一端通过混流孔与燃料管连通。本发明不仅结构简单、尺寸紧凑、体积小、重量轻，还通过在喷嘴本体内部设置预混管，将空气和燃料在预混管段内预混形成预混燃油后以与喷嘴轴线呈一定角度喷出，在喷嘴外形成回流区，从而降低了火焰区峰值温度和有害气体的排放量、缩减了火焰长度，有效地提高了预混燃油火焰的稳定性，避免了在进行贫油预混燃烧时火焰吹熄现象的发生。

The invention discloses a spiral-flow type thin-pipe premixing fuel nozzle capable of realizing radial intake, and belongs to the technical field of aero-engines. The spiral-flow type thin-pipe premixing fuel nozzle disclosed by the invention comprises a nozzle body, a fuel pipe and a thin flow mixing pipe, wherein a premixing pipe penetrating through the nozzle body is arranged in the nozzle body; the premixing pipe comprises an intake pipe section and a premixing pipe section which are mutually communicated; the fuel pipe and the nozzle body are integrally formed through adopting an additive manufacturing technology; a flow mixing hole is formed in the pipe wall located in the nozzle body, of the fuel pipe; and one end of the thin flow mixing pipe communicates with the premixing pipe, and the other end of the thin flow mixing pipe communicates with the fuel pipe through the flow mixing hole. The spiral-flow type thin-pipe premixing fuel nozzle disclosed by the invention is simple in structure, compact in dimension, small in size and light in weight; and the premixing pipe is arranged in the nozzle body, air and a fuel are premixed in the premixing pipe section to form premixed fuel oil, and then the premixed fuel oil is ejected in a manner of forming a certain angle with the axis of the nozzle to form a backflow area outside the nozzle, so that the peak temperature of a flame area and the emission amounts of harmful gases are lowered, the length of flame is reduced, the stability of the flame of the premixed fuel oil is effectively improved, and a flame blow-out phenomenon during lean oil premixing combustion is avoided.

F23R3/28

（TRANSFER OF PATENT RIGHT）[2020-10-27][CN]

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潘登 ; 邓猛烈

北京品源专利代理有限公司

PatSnap

赵巍,韩品连,张坤. 一种径向进气旋流式细管预混燃油喷嘴[P]. 2019-08-23.