Development of a gas-diesel engine injection system using a hydraulically actuated, electronically controlled unit injector (HEUI) for flexible dual-fuel operation

开发一种采用液压驱动、电控单元喷油器（HEUI）的燃气柴油发动机喷射系统，实现灵活的双燃料操作。实现温室气体减排的目标需要实用的、易于实施的汽车替代燃料。将现有的卡车/公共汽车柴油发动机转换为使用天然气的双燃料系统非常重要。特别是，对于长距离应用，这些系统需要允许灵活地从单一柴油切换到双燃料操作，并在城市内低负荷时良好的天然气替代。在ARC资助的早期项目中，UNSW开发了世界上最紧凑、最灵活的HEUI柴油喷油器。该项目旨在开发、测试和探索使用紧凑的单单元组合NG/HEUI喷射器的双燃料燃烧，这将具有相当大的燃烧和操作优势。

Development of a gas-diesel engine injection system using a hydraulically actuated, electronically controlled unit injector (HEUI) for flexible dual-fuel operation. Achieving targets for greenhouse gas reduction will require practical, easily implemented alternative fuels for vehicles. Converting existing truck/bus diesel engines to dual-fuel systems using natural gas is important. In particular, for long distance application, these systems need to allow flexible switching from sole diesel to dual-fuel operation and good gas substitution at low loads within cities. An earlier ARC funded project allowed UNSW to develop the world's most compact, flexible HEUI diesel injector. This project aims to develop, test and explore dual-fuel combustion using a compact single unit, combined NG/HEUI injector which will have considerable combustion and operational advantages.