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

采用液压致动、电控单体喷油器（HEUI）的燃气-柴油发动机喷射系统的开发，以实现灵活的双燃料操作。实现温室气体减排目标需要切实可行、易于实施的车辆替代燃料。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，这些系统需要允许从单一柴油到双燃料操作的灵活切换，以及在城市内的低负荷下的良好气体替代。早期的ARC资助项目使新南威尔士大学能够开发出世界上最紧凑、最灵活的HEUI柴油喷射器。该项目旨在开发、测试和探索双燃料燃烧，使用紧凑的单个单元，组合NG/HEUI喷射器，其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.