A light-duty aviation two-stroke engine atomizing nozzle and its working method
An atomizing nozzle and two-stroke technology, which is applied to engine components, machines/engines, and the direction of bringing fuel into the engine through high-pressure gas, can solve the problem of poor atomization and compaction quality of centrifugal nozzle bottom oil and narrow fuel injection range of pneumatic nozzles , Large oil supply pressure changes, etc., to achieve the effect of small change range of combustion flame, wide injection range, and stable injection oil pressure
Active Publication Date: 2020-05-05
安徽省飞腾航空科技有限公司
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Problems solved by technology
[0004] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a light-duty aviation two-stroke engine lubricating atomizing nozzle and its working method, which can improve the poor atomization and compaction quality of the bottom oil of the centrifugal nozzle when the aviation two-stroke engine atomizing nozzle is started. , The oil supply pressure changes greatly, the fuel injection range of the pneumatic nozzle is narrow, and the combustion performance is poor at low speed.
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[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. 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.
[0041] see Figure 1-Figure 9 As shown, the present invention is an atomizing nozzle for a light-duty aviation two-stroke engine, comprising a primary spray body 3, a secondary spray body 4, a primary nozzle opening 7, and a secondary nozzle opening 8; the upper end of the secondary spray body 4 Installed at the lower end of the primary spray body 3, the primary nozzle port 7 is set at the lower end of the primary spray body 3, the secondary nozzle port 8 is set at the lower end o...
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The invention discloses an atomizing spray nozzle of a light type two-stroke aero-engine and a work manner of the atomizing spray nozzle of the light type two-stroke aero-engine. The atomizing spray nozzle of the light type two-stroke aero-engine comprises a first-grade spray body, a second-grade spray body, a first-grade spray nozzle opening and a second-grade spray nozzle opening. The upper endof the second-grade spray body is installed at the upper end of the first-grade spray body. The first-grade spray nozzle opening is arranged at the lower end of the first-grade spray body. The second-grade spray nozzle opening is arranged at the lower end of the second-grade spray body. The first-grade spray nozzle opening is installed on a centrifugal oil return spray nozzle. The second-grade spray nozzle opening is installed on a pneumatic spray nozzle. A pressurizing air compression mechanism and a centrifugal acceleration mechanism are arranged on the upper side of the first-grade spray body. According to the atomizing spray nozzle of the light type two-stroke aero-engine, combination and separation of a centrifugal spray nozzle and a start spray nozzle are controlled by means of an electromagnetic valve, so that the spray range of the atomizing spray nozzle is wide, the spray oil pressure is stable, and the variation range of a combustion flame is small; when the engine operates at a low speed, the centrifugal spray nozzle is adopted, after stabilization, the centrifugal-pneumatic combined type spray nozzle is adopted, so that the stability of the engine and the atomizing efficiency of fuel oil are greatly improved, and fuel oil is sufficient when the engine is at different rotation speeds.
Description
technical field [0001] The invention relates to the technical field of light aviation atomizing nozzles, in particular to a light aviation two-stroke engine lubricating atomizing nozzle and its working method. Background technique [0002] Due to the increasingly perfect intelligent control system, UAVs have been widely used in various fields. The miniaturization of UAVs promotes the development of light aeroengines. The main development direction of light aeroengines is two-stroke gasoline engines. Technology has been continuously improved. [0003] The atomizing nozzles of the engine have various methods such as direct injection, centrifugal, pneumatic, steam, oil flinger, etc. Among them, centrifugal nozzles and pneumatic nozzles are the most widely used in aero-engines, and the structure of centrifugal nozzles is complex. , the pressure change is unstable, but the combustion flame has a wide range of stability, the pneumatic nozzle has a simple structure and low cost, a...
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IPC IPC(8): F02M61/18F02M67/02
CPCF02M61/18F02M61/1806F02M67/02
Inventor 贾晓敏姚尔强朱轩郏斌祥褚鹏飞
Owner 安徽省飞腾航空科技有限公司