哈尔滨工程大学学报2018，Vol.39Issue(2)：338-343,6.DOI:10.11990/jheu.201608024
四气阀大功率双燃料发动机进排气口优化设计
Optimization design of intake/exhaust port for a 4-valve heavy duty dual fuel engine
摘要
Abstract
To achieve an optimum match between the cylinder and the intake/exhaust port in a marine heavy-duty dual fuel engine,an air dynamics modeling and simulation approach is used to research the change rule relating to the flow coefficient and the swirl number for different intake/exhaust port circulation areas. Optimized match results are verified by experimental results of physical intake and exhaust port models. Experiments show a decrease in the swirl number with an increase in the intake flow section area. In addition,the flow coefficient increases to a maxi-mum and then decreases with an increase in the intake flow section area. Final results show that an optimized air-way port circulation area that has an inlet diameter of 88.60 mm and exhaust duct diameter of 80.00 mm provides excellent valve lift adaptability.关键词
船用双燃料发动机/进排气道/进气涡流/气道流通效率/气道仿真/气道设计/气道优化/气道试验Key words
marine dual fuel engines/intake and exhaust port/swirl number of intake/flow coefficient of intake and exhaust/air duct simulation/air duct optimization/practical air duct test分类
能源科技引用本文复制引用
钱正彦,朱树林,郑先全..四气阀大功率双燃料发动机进排气口优化设计[J].哈尔滨工程大学学报,2018,39(2):338-343,6.基金项目
工信部联装项目([2013]412). （[2013]412）
