MITSUI-Everllence B&W Engine
MITSUI E&S's Marine Engines Leading the World in Next-Generation Fuel Compatibility
MITSUI E&S boasts the top share in Japan for large low-speed two-stroke marine engines.Since entering into a technical partnership with Everllence (formerly Burmeister & Wain) in 1926, we have been manufacturing engines under the single brand "MITSUI-Everllence B&W" and in November 2024, we achieved a cumulative production of 120 million horsepower. Looking ahead, we have shifted the focus of our main products from heavy oil engines to dual fuel engines (DF) that can burn methanol and LNG in order to achieve zero net GHG emissions. While expanding our manufacturing capabilities for various DF engines, we are currently developping ammonia dual fuel and hydrogen dual fuel engines, which are the ultimate zero-emission fuels.
Development track record of various fuels
2015
- Methanol dual fuel engine: World's first engine
- Methane dual fuel engine: Our first engine
2016
- Ethane dual fuel engine: World's first engine
2022
- LPG dual fuel engine: Our first engine
2024
- World's first successful hydrogen combustion operation with a large marine engine
- Accumulated production of engines reaches 120 million horsepower
2025
- World's first test operation of large-bore low-speed ammonia dual fuel engine
"MITSUI-Everllence B&W" single brand cumulative production horsepower history
Engine Lineup by Fuel Type
Fuel Oil

Methanol

Methane

Ethane

LPG

Ammonia (Under Devolopment)

Hydrogen (Under Devolopment)

NOx Tier III Technologies
We provide technologies that comply with nitrogen oxide (NOx) regulations. EGR reduces NOx generation by cooling and cleaning a portion of the exhaust gas, then recirculating it to the exhaust receiver. SCR is a technology that reduces NOx contained in exhaust gas to nitrogen and water, rendering it harmless.


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Inquiries about products
Sales Dept., Marine Propulsion Systems Div.