| 摘要:基于29届CIMAC大会交流内容，分析了船用中高速发动机整机开发趋势。分析表明:当前整机开发关注的重点是降低排放和提高综合能效；LNG气体机及双燃料机成为整机开发趋势；两级增压可变配气正时成为越来越多主机厂的技术选择。在LNG气体机及双燃料机的开发上，欧美的研究重点是整机的瞬态性能及闭环控制等；日韩的研究重点则侧重于减少燃烧室死区，优化缸内燃烧，提高效率等；而我国船用气体机研究尚处于起步阶段，整机的可靠性有待进一步验证及改进提高。 |
| 关键词: 船用中高速发动机 气体机 双燃料机 开发 |
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| The Development Tendency of Marine Medium and High Speed Engines Fromthe 29th CIMAC Congress Point of View |
| Jin Feng,Yan Lan,Yang Tao,Wang Cong |
| Shanghai Marine Diesel Engine Research Institute, Shanghai 201108 |
| Abstract:Based on the 29th CIMAC congress, the development tendency of marine medium and high speed engines is analyzed. It shows that:the development nowadays focus on emissions reduction and improvement of comprehensive energy efficiency; LNG gas engines and dual fuel engines have becoming the development tendency of whole engines; two stage turbocharging and variable valve timing have become a technical choice for more and more main engine manufantares. In the development of LNG engines and dual fuel engines, the engine makers in western countries focus on transient performance and close loop control of whole engines, the Japanese and Korean engine makers tend to choose the way of reducing the dead zone of combustion room, optimizing combustion in cylinder, improving efficiency, etc. The deve-lopment of marine gas engines in China is still at the early stage, the reliability of whole engines still needs to be verified and improved. |
| Key words: marine medium and high speed engine gas engine dual fuel engine development |
