Position: Home > Articles > A Refitted Design of the LPG/Diesel Dual-fuel Engine with Electronic Controlled Multi-point Injection System
Journal of Agricultural Mechanization Research
2010,32
(1)
166-169
电控多点喷射LPG/柴油双燃料发动机的改装设计
作 者：
郑建;樊啟洲;刘艳蓉;张俊峰
单 位：
华中农业大学工程技术学院
关键词：
直喷柴油发动机;双燃料;多点喷射;液化石油气
摘 要：
为了在直喷柴油机上实现柴油与液化石油气(LPG)高效混燃,充分发挥LPG优越的理化特性和燃烧特性,专门研制了双核电控单元(ECU),建立了相应的控制模型,设计了LPG电控喷射系统,对295T直喷柴油机实现了电控多点喷射LPG/柴油双燃料发动机改装。在相同条件下,以改装后的发动机为试验装置,分别燃用柴油和LPG/柴油双燃料进行了台架性能试验。试验结果表明:改装后的LPG/柴油双燃料发动机与原机(燃用纯柴油时的发动机)相比,动力性能略有提高,热效率提高,当量燃油消耗率降低。
译 名：
A Refitted Design of the LPG/Diesel Dual-fuel Engine with Electronic Controlled Multi-point Injection System
作 者：
Zheng Jian,Fan Qizhou,Liu Yanrong,Zhang Junfeng ( College of Engineering & Technology,Huazhong Agricultural University,Wuhan 430070,China)
关键词：
direct injection diesel engine; dual-fuel; multi-point injection; liquefied petroleum gas
摘 要：
To achieve efficient mixed combustion of liquefied petroleum gas ( LPG) and diesel in a direct injection ( DI) diesel engine,and to develop adequately the advantageous physicochemical and combustion characteristics of LPG. A special dual-core electronic control unit ( ECU) with control model and LPG electronic control injection system was developed,by which a 295T DI diesel engine was successfully refitted into a LPG /diesel dual-fuel engine with electronically controlled multi-point injection. Taking diesel oil and LPG / diesel as fuel respectively,under the same condition,performance tests of the modified engine had been done. Test results indicate that the refitted LPG /diesel dual fuel engine has a slightly higher power performance,a higher thermal efficiency and lower equivalent fuel consumption compared with the original diesel engine.
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