吕晓东 

中国北车集团（大连）柴油机有限公司

摘要：8240ZCDF型柴油/天然气双燃料发动机是我公司新开发的新能源发动机，该发动机既可以在纯柴油模式下运行，也可以在柴油/天然气双燃料模式下运行,安全标准满足国内最高安全标准—中国船级社《天然气燃料动力船舶规范》中“本质安全”标准。该发动机采用了先进的天然气电子控制多点喷射技术，柴油替代率达80%以上，按照中国船级社“本质安全”标准进行总体设计，该发动机可以满足船用推进及发电、陆用发电等多种用途，具有柴油替代率高，NOx、CO₂排放低、经济性高等特点。

关键词  双燃料发动机；多点喷射；替代率；本质安全

Abstract: The 8240ZCDF diesel/gas duel fuel engine is new developed engine on new energy, suitably operating either on diesel or natural gas duel fuel. The engine meets the standards of intrinsic safety specified in the CCS “Rules for Natural Gas Fuelled Ships”. This engine uses multipoint electronic controlled fuel injection, achieving diesel substitution  rate of over 80 percent . Being designed according to the standard intrinsic safety, the engine is applied for   marine propulsion, electrical generation, providing these features like high substitution rate, low NOx and CO₂ emission and high economy.

Key words: Dual Fuel Engine； Multipoint Injection； Substitution Rate；Intrinsic Safety Functions