摘要
柴油机直接燃用植物油燃料,存在启动困难、在怠速、低转速和小负荷等工况时燃烧排放性能差等问题。本文对原车柴油机燃料供给系统进行改进设计,应用控制单元对燃油供给系统进行控制,在启动、怠速、低转速和小负荷时给发动机供柴油,中高负荷时给发动机供植物油,实现柴油和植物油燃料的双供给。改装后整车道路试验表明,燃用植物油汽车运行可靠,动力性、经济性与原车相当,在中高负荷时燃烧和排放特性优于柴油车。
When a diesel engine fuels vegetable oil fuel directly, the engine is difficult to start and has bad combustion emissions performance at idle or low speed under low load conditions. In this paper, the diesel fuel supply system for the original vehicle is designed and is controlled with control units. When the engine starts or runs at idle, low speed or at small load, it is controlled to fuel diesel fuel but changed to burn vegetable oil fuel at medium and high load. The road tests based on a modified vehicle shows that it can run reliable with similar economy and power and better com- bustion and emission characteristics under medium and high load while fueling vegetable oil with comparison to the original vehicle.
出处
《内燃机与动力装置》
2011年第6期46-49,共4页
Internal Combustion Engine & Powerplant
