高压共轨柴油发动机新型配油转阀设计及其内部流场分析

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中图分类号：U464.136+.6 文献标志码：A DOI：10.20104/j.cnki.1674-6546.20240322

【Abstract]In order to improve the fuel performance of diesel engine，this paper proposes a new type oil distribution rotary valve structure，which is designed basedontheworking parametersof YC4EG170-50 commonrail diesel engine.The sizeof thevalveportisobtainedbytheoreticalcalculation，andthephysicalmodelof therotaryvalvebasinisdeveloped. Thedistributionofvelocityandpresureinthebasinand theflowrateof thevalveportaresimulatedatvalvecoreanglesof 0∘ ， 5∘ ， 10∘ ， 15∘ and 45∘ in Fluent software.The results show that the oil flow rate of the rotary valve outlet is stable at about （204号 20m/s ，and the oil pressure of the outlet is stable at about 0.2MPa ，the outlet flow rate isabout 0.4745kg/s at different valve core angles，which meets the working requirements of YC4EG17O-50 common rail diesel engine.

KeyWords：Diesel engine，Rotaryvalve，Structural design，Flowfieldanalysis

【引用格式】刘京，赵永强.高压共轨柴油发动机新型配油转阀设计及其内部流场分析[J].汽车工程师，2025（11）：25-31. LIU J，ZHAO YQ.Design and Internal Analysis ofA New Oil Distribution Valve of High-Pressure Common Rail Diesel Engine[J].AutomotiveEngineer，2025（11）： 25-31.

1前言

内燃机的高效化可实现更高的喷射速度、更精准的喷射控制、更低的能耗和污染物排放量。（剩余7567字）