电控排气阀开启/关闭角度对智能化低速柴油机性能的影响

Effect on Performance of Mairne Intelligent Low-speed Diesel Engine by Different Opening and Closing Angles of Electrically Controlled Exhaust Valves

以RT-Flex60C大型智能化低速柴油机为研究对象,建立了智能化柴油机工作过程仿真模型,用自主开发的大型智能化柴油机电控排气阀系统硬件在环(HIL)仿真试验平台和柴油机台架试验数据验证仿真模型的正确性;在此基础上,对电控排气阀开启/关闭角度对柴油机性能与排放特性的影响进行了仿真计算分析。根据分析结果提出了RT-Flex60C机排气门开启/关闭角度的优化方案。

A simulation model was built based on RT-Flex60C marine intelligent low-speed marine diesel engine,and was validated by data from hardware in loop（HIL） simulation test bench developed independently for large intelligent diesel engine’s electrically controlled exhaust valves,as well as data from diesel engine bench test.Based on these research,simulation analysis was carried out on the effect on performance of mairne intelligent low-speed diesel engine by different opening and closing angles of electrically controlled exhaust valves.The optimized opening and closing angles of exhaust valves on RT-Flex60C was given according to the analysis results.