MOL Group to Adopt Fully Electronic Controlled Main Engine Equipped

TOKYO-Mitsui O.S.K. Lines, Ltd. today announced that its group company, Mitsui O.S.K. Kinkai, Ltd. (President: Kenichi Nagata; headquarters: Minato-ku, Tokyo) will use a main engine equipped with the MAN Diesel & Turbo SE (MDT)-developed ”common rail fuel injection system” on a newbuilding vessel. Shop test of the main engine was completed on January 29 and the vessel is slated for launching in 2018.

After launched, Mitsui O.S.K. Kinkai, MDT and Makita Corporation (President: Yu Makita; headquarters: Takamatsu-shi, Kagawa Prefecture) will continue testing the system with support from MOL while the vessel is in service.

The pilot engine for MDT, manufactured by Makita Corporation, is the first to adopt the MAN B&W 2 Cycle engine. Makita Corporation manufactures and sells small-displacement engines through sub-license agreement with Mitsui Engineering & Shipbuilding Co., Ltd., a licensee of MDT.

The system can inject fuel oil from fuel valves that incorporate solenoid valves, at the optimal timing, with the optimal volume, and in the optimal pattern to maximize engine output, by increasing the fuel oil pressure to 1,000 bars with an electric pump, and storing the fuel oil at high pressure in the common rail pipe.

The system also uses hydraulic pressure, instead of the conventional camshaft, to operate the exhaust valves allowing for electronic control and enabling the valves to open and close more freely. 

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