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首页> 外文期刊>International Journal of Applied Engineering Research >The influence of location of input edges of injection holes on hydraulic characteristics of injector the diesel fuel system
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The influence of location of input edges of injection holes on hydraulic characteristics of injector the diesel fuel system

机译：喷油孔输入边缘位置对柴油机喷油器水力特性的影响

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摘要

Perfection of fuel atomization by increasing injection pressure required for compliance of diesel engines with increasingly restrictive ecological standards related to toxic emissions is associated with the increase of power for high pressure fuel pump drive and decrease of the nozzle lifetime. Development of the nozzle design which ensures high quality fuel atomization with minimal energy consumption is a relevant task. Tests with several variants of nozzles having different design were carried out in MADI. The first variant was distinguished by location of the injection holes entering edges in the nozzle sack. The second variant had the injection holes entering edges located on the locking cone of the nozzle body. The third variant had two groups of holes (on the locking cone and in the nozzle sack). The aim of the research was estimation of the influence of the location of the injection holes entering edges on parameters which determine the fuel injection process (penetration length and atomizing fineness). A possibility of fuel delivery correction by injection orifices and hence by combustion chamber areas taking into consideration diesel engine operation conditions was demonstrated. Applied research and experimental developments are carried out with financial support of the state represented by the Ministry of Education and Science of the Russian Federation under the Agreement No 14.580.21.0002 of 27.07.2015, the Unique Identifier PNIER: RFMEFI58015X0002.
机译：通过增加喷射压力来完善燃料雾化，这是为了使柴油发动机符合与有毒物质排放有关的越来越严格的生态标准，这与高压燃料泵驱动的功率增加以及喷嘴寿命的减少有关。喷嘴设计的发展是一项重要的任务，该喷嘴设计可确保以最小的能耗实现高质量的燃油雾化。在MADI中对具有不同设计的几种不同型号的喷嘴进行了测试。第一种变型的区别在于进入喷嘴袋边缘的喷孔位置。第二种方案是使喷孔进入位于喷嘴体锁紧锥上的边缘。第三个变体有两组孔（在锁紧锥和喷嘴袋上）。该研究的目的是估计喷射孔进入边缘的位置对确定燃料喷射过程的参数（穿透长度和雾化细度）的影响。已经证明了通过喷射孔并因此通过燃烧室面积校正燃料输送的可能性，其中考虑了柴油机的运行条件。在俄罗斯联邦教育和科学部代表的国家财政支持下，根据2015年7月27日第14.580.21.0002号协议（唯一标识符PNIER：RFMEFI58015X0002），进行了应用研究和实验开发。

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