総重量8トンDME自動車の研究開発(<特集>DME(ジメチルエーテル))

概要

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Dimethyl ether (DME) has been attracting much attention as a clean alternative fuel for diesel engines. The authors developed a middle duty DME truck, and investigated aspects of vehicle performance such as engine power, exhaust characteristics, fuel consumption, noise, vehicle systems and so on. Our results indicated that larger engine torque and power could be achieved with DME compared to with diesel fuel operation of the base engine at any engine speed, and that emissions were decreased by 27% of NOx, 74% of HC, 95% of CO and 94% of PM (Particulate Matter) from Japanese 2003 emission regulations. The running noise of the DME vehicle was almost lower than the base vehicle with diesel fuel, because the combustion noise with DME was decreased compared to with diesel fuel operation. The DME vehicle was given a public license plate on October 2004, after which running test were continued on public roads and test course.
一般社団法人日本エネルギー学会の論文
2005-04-20