四气门柴油机进气道开发.pdf

第29卷第2期 内 燃机工程 V01．29No．2 ’2008年4月 chineseInternalCombustion Apr．2008 EngineEngineering 文章编号：1000—0925(2008)02一051一05 290030 四气门柴油机进气道开发 王天友1一。刘大明1。沈 捷2，韩义勇2。金成吉2，朱杰2，谷 峪2．刘书亮1．刘锦池1 (1．天津大学内燃机燃烧学国家重点实验室，天津300072； 2．广西玉柴机器股份有限公司) OfIntakePortsofFouI。ValVeDiesel DeVelopment Engine wANG Jie2，HAN Da-min91，SHENYi—yon酽， Tian—youl”，LIU JIN Jie2，GUYu2，LIUShu-Uan91，LIUJin-chil Cheng-ji2，ZHU (1．State of KeyLaboratoryEngines，TianjinUniVersity，Tianjin300072，China； Yuchai Co．，Ltd．) 2．GuangxiMachinery for diesel coreboxes Abstract：Aintakewas adomesticfour—Valve different port developed engine，and the oftraditional incombinationof ofintakeweremade method port respectivelybyusing technology advanced Theresultsof flowtestshowthatthemeanflowcoefficient CAD／CAMtechnology． portsteady the andswirlratioofthe madeofthecorebox CAD／CAM are sameas port using techn0109yapproximately themaximumdeviationislessthan Theresultsof simulationare thoseoftargetport，and 1％． steady—state in withtest thedeviationisatabout3％． Researchshowsthat