Hitachi completes first Wärtsilä RT-flex engine

Hitachi Zosen Diesel & Engineering celebrated the completion of its first Wärtsilä RT-flex common-rail marine diesel engine at its Ariake Machinery Works in Kumamoto Prefecture, Japan.

Hitachi is the eleventh licensed engine builder to manufacture Wärtsilä RT-flex engines that feature a maximum continuous power of 9960 kW (13,560 bhp) at 124 rpm. The 6-cylinder Wärtsilä RT-flex50-B engine built by Hitachi will be delivered to Nanjing Wujiazui Shipbuilding in China for installation onboard a 1085teu containership being built for a German owner. The company has further orders for a total of 26 RT-flex50 engines from shipyards in China and Brazil. Wärtsilä RT-flex marine low-speed engines incorporate the latest electronically-controlled common-rail technology for fuel injection and valve actuation. The new technology is said to provide great flexibility in engine setting, bringing benefits in lower fuel consumption, lower minimum running speeds, smokeless operation at all running speeds, and better control of other exhaust emissions. Wärtsilä RT-flex engines are available in eight cylinder sizes covering a power range from 5650 to 84,420 kW. It is designed to meet the market needs for outstanding reliability, high efficiency, compactness, optimized manufacturing, and environmental requirements.

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