Supergreen dimethyl fuel

摘要

Daihatsu Diesel lays out its plans to develop marine engines running on a completely new fuel source. Japan's 'Supergreen Marine Diesel Engine' project has state support and ranges across high-, medium- and low-speed marine engines. Initiated in 2007, the project supports work being done by Mitsubishi Heavy Industries to develop a low NQx and SOx main slow-speed engine, with Yanmar chosen to develop an equivalently green high-speed engine. In the medium-speed range, however, research is being carried forward by three companies: Daihatsu Diesel Mfg Co, Niigata Power Systems, and Hitachi Zosen Diesel and Engineering Co. Toshio Matsuka, Daihatsu Diesel general manager, marine diesel engine sales department, said that there would be no difficulty in Daihatsu meeting the International Maritime Organizations recently arrived at formula for 'Tier II' marine engines under the revised Annex VI of Marpol. This envisages a 20% cut in NOx emissions by 2012. 'We can do that already by developing our existing engines,' said Mr Matsuko. 'We will need to develop the Miller cycle and increase turbocharger power to meet the requirements' Daihatsu offers engines ranging from 17cm to 32cm bore in its diesel range, with a larger 36cm bore gas engine also available.