Marine Engines News

Vessel owners are making new fuel choices, but increasingly, they have options to help reduce the risk of doing so.The latest engine developments aim to make it easier for owners to avoid the chicken-and-egg fuel price and availability risks of new fuels.As Roger Holm, President of Wärtsilä Marine and Executive Vice President at Wärtsilä Corporation recently pointed out, the challenge is that owners won’t commit to a fuel today that is expensive, only produced in small quantities and may be usurped by another fuel that scales faster and more affordably.

In the course of the market launch of the MAN D3872 for workboats, MAN Engines is expanding its portfolio with additional performance for heavy-duty applications. The new MAN D3872 in the LE427 variant for heavy-duty applications has an output of 920 kW (1,250 hp) at 1,800 rpm and is equipped with an exhaust gas aftertreatment system consisting of a diesel particulate filter and SCR system.This means that the engine meets the strict emission standards of the EU Stage V for inland navigation with the limits of 1.8 g/kWh nitrogen oxides (NOx)…

Ships trials reportedly confirmed that CM Technologies’ new scuffing sensor can detect early onset cylinder wear in marine diesel engines. Trials onboard a number of large containerships and a two-stroke engine Baltic ferry showed it was possible to measure the friction in the cylinder when the engine is running.CMT noted a trend in cylinder liner scuffing following the widespread use of 0-0.50% low sulphur fuel (LSF). These fuels together with insufficient or over lubrication…

On October 1, 2024, NYK began operation of a test engine facility in Chiba Prefecture to evaluate the safety of new fuels.The introduction of new marine fuels used to necessitate testing and analysis at external engine facilities, in addition to trial operations, all of which would require about two years to complete. Shortening this period and reducing the cost of testing have been key to meeting the increasing demand for new fuels, such as biofuels, and satisfying the environmental regulatory measures of various countries.

MAN Engines has introduced its MAN D3872 LE432 workboat engine with a displacement of 30 liters.The V12 engine has an output of 1,213kW (1,650hp) at 2,100rpm, making it suitable for medium-duty applications such as wind farm supply vessels, ferries, passenger ships and fishing boats.Further power variants of the MAN D3872 (1,471 and 1,618kW or 2,000 and 2,200hp at 2,300 rpm) for light applications have already started in production.The MAN D3872 engine has a completely new basic engine and benefits from improved coolant delivery through a new coolant pump and thermostat housing…

MAN Energy Solutions has announced a new generation of its Common Rail injection system for its medium-speed, four-stroke engine portfolio.Its core components comprise an optimised and uniform high-pressure pump and a newly developed injector, integrating the CR 1.6 valve group and making the entire system setup more coherent. It is initially being introduced via the MAN 49/60DF engine.MAN Energy Solutions reports that CR 2.2 can boast of up to 38% increased rail-pressure for all applications, and over 33% increased target time-between-overhaul intervals for most components.

Auramarine has launched an ammonia fuel supply system designed in adherence to all safety, design and material requirements for the fuel.The system is suitable for both two-stroke and four-stroke engines as well as other ammonia consumers. Safety measures include gas and leak detection, ammonia capture, reliquefying and ammonia release mitigation functions.The system has been developed in collaboration with experts on ammonia as well as using findings from the HENNES research…

Chevron Marine Lubricants has experts at SMM 2024 demonstrating how the company is leveraging the synergy across its products and services to develop a suite of solutions designed to help lower the carbon intensity of the marine sector while aligning with global carbon emission goals.One example is Chevron’s taro ultra advanced 40 which has been granted gas validation status by WinGD. It covers all WinGD gas (LNG burning) engines and follows the previously granted ‘gas general use’ approval…

The Transport Emission Control Team at VTT Technical Research Centre of Finland has released a study of methane slip and other emissions from an LNG-powered marine engine operating under real-life conditions.The now published study ‘Methane slip and other emissions from newbuild LNG engine under real-world operation of a state-of-the art cruise ship' details the results of a study conducted on the newbuild cruise ship MSC World Europa. One of its five engines, a Wartsila 46DF…

New Times Shipbuilding Co. Ltd. of Jiangsu province, China, has ordered 12 × 8G95ME-GI (Gas Injection) Mk10.5 main engines in connection with the construction of 12 × 18,000 teu container vessels for Singapore’s Eastern Pacific Shipping (EPS).MAN Energy Solutions says the Diesel principle provides the ME-GI engine with high operational stability and efficiency, while also ensuring reliable operation during load changes on gas with just normal additions of pilot-oil amounts. Furthermore, the ME-GI operational principles feature a seamless change-over between gas and diesel operation.Thomas S.

Swiss marine power company WinGD has teamed up with global shipping line CMA CGM to test its Variable Compression Ratio (VCR) technology for dual-fuel engines onboard one of CMA CGM’s vessels.The collaboration marks the first field test for the new dual-fuel engine technology and follows successful factory tests showing significant efficiency improvements with both diesel and LNG fuel.The CMA CGM project comprises a long-term, full-scale test to confirm operability and reliability.Onboard testing is expected to begin following the dry-docking of the vessel in September…

WinGD reports it has successfully completed type approval and factory acceptance testing for its X52-S2.0 engine, bringing a new option to shipowners in need of compact, medium-bore two-stroke engines. The tests at Yuchai Marine Power Co (YCMP) confirmed the engine’s performance and compliance.The X S series succeeds the RT flex50 and RT flex58 engines and is available in 52cm and 62cm bore sizes, with confirmed orders already for diesel, LNG and methanol configurations and an ammonia fuel option under development.

The Maersk Mc-Kinney Møller Center for Zero Carbon Shipping (MMMCZCS) has released a new report: Tackling methane slip in shipping.Past research at the MMMCZCS has demonstrated that current regulations that include methane, such as CO2-equivalent fuel standards (e.g., FuelEU Maritime), will have a limited effect on reducing onboard methane emissions in the short- to mid-term. Furthermore, the default methane slip value concept does not provide a direct incentive to engine makers…

CIMAC has welcomed Charlotte Røjgaard, Bureau Veritas, as a new board member.She will act as Vice President Working Groups. Røjgaard succeeds Marko Dekena who recently decided to leave the CIMAC Board after many years in various roles.Røjgaard is the Global Marine Fuels Director at Bureau Veritas. She holds a Master of Science degree in Chemical Engineering from the Technical University of Denmark and an executive MBA in Shipping and Logistics from Copenhagen Business School.

Swiss marine power company WinGD has secured an order for its X‑DF‑A ammonia-fueled engines for what will be the world’s first ammonia dual-fuel Aframax tankers.Two vessels ordered by Singapore based ship owner and operator AET, a petroleum arm of Malaysia’s MISC Group, will be built at Dalian Shipbuilding Industry with six-cylinder X62DF-A engines, the newest addition to WinGD’s clean-fuel engine portfolio.AET recently entered into time charter party (TCP) contract with Petronas'…

Norwegian power solutions supplier Bergen Engines has been selected to provide four generating sets to support the world’s largest hydrogen ferries, operating on Norway’s longest ferry connection from Bodø to Lofoten.The C25:33L8A generating sets will be fueled by low carbon Hydrotreated Vegetable Oil (HVO) and will serve as support power to the hydrogen fuel cells onboard, which act as the vessel’s main propulsion power.Scheduled for delivery in 2026, these new ferries will be…

Wärtsilä will supply the methanol-fueled auxiliary engines for five new container vessels for COSCO Shipping Lines and seven new container vessels for Orient Overseas Container Line.Each vessel will operate with three 8-cylinder and two 6-cylinder Wärtsilä 32M engines. This is the Chinese maritime sector’s largest order to date for methanol-fueled newbuild vessels. The order was booked by Wärtsilä in December 2023.To complement the solution, the ships will be equipped with the Selective Catalytic Reduction (SCR) exhaust cleaning systems and alternators.

WinGD will record the first installation of its new X-S short-stroke engine design following successful factory acceptance tests with engine builder Dalian Marine Diesel in March.The six-cylinder, 62cm-bore 6X62-S2.0 engine will be installed on a pulp carrier being built for a Chinese owner at COSCO Dalian shipyard.The X-S series succeeds the well-established RT-flex50 and RT-flex58 engines and is available in 52cm and 62cm bore sizes, for the range of fuel options including traditional diesel or dual-fuel LNG…

MAN Energy Solutions and Svitzer have signed a Memorandum of Understanding (MoU) focused on the development of a methanol-fuelled version of the MAN 175D engine. Designated 175DF-M (Dual Fuel-Methanol), the MoU targets the finalisation of a field-test agreement based on which a dual-fuel engine and plant equipment will be installed on board one of Svitzer’s newbuild tugs.Svitzer has a long-standing relationship with MAN Energy Solutions, especially recently with the MAN 175D engine.

MAN Energy Solutions has announced the production of a massive Cluster 5 Double Layer Selective Catalytic Reduction (SCR) converter to MITSUI E&S.The cluster comes ammonia-ready and is the largest such unit that the company has ever built.Such systems are typically used aboard cruise ships and cargo ships to reduce nitrogen oxide emissions by 90%.“As the very first SCR for an ammonia engine anywhere in the world, this is a historic moment. As the largest, high-pressure SCR we have ever built, this marks a new milestone for our business.

Norwegian power solutions provider Bergen Engines has secured DNV’s approval of its methanol-ready statement for marine engines.According to Bergen Engines, methanol will be an important fuel option for marine applications and is currently adapting research accordingly, with the maritime industry in focus.Methanol, a versatile and sustainable fuel when produced from renewables, offers numerous advantages for Bergen medium-speed engines, the company said, adding that its efficient…

Accelleron has been chosen to supply turbochargers for Japanese engine builder Makita’s first small-bore two-stroke marine engine featuring exhaust gas recirculation (EGR). The step follows a successful matching test in which Accelleron’s A255-L turbocharger demonstrated high efficiency, supporting both low NOx emissions and overall fuel consumption on the Makita-built MAN B&W 6G45ME-C9.7-EGRBP engine.The Makita engine, 6G45ME-C9.7-EGRBP, will be the first of its type worldwide to feature EGR bypass…

Mitsubishi Shipbuilding, part of Mitsubishi Heavy Industries (MHI) Group, has acquired an approval in principle (AiP) from the Japanese classification society ClassNK for its ammonia fuel supply system (AFSS).The AiP has been issued for the AFSS developed for the X-DF-A, a large, low-speed two-stroke ammonia-fueled engine under development by WinGD, a Swiss designer and licensor of large marine engines.In June 2023 Mitsubishi Shipbuilding and WinGD concluded a memorandum of understanding (MoU) to undertake joint technical studies on an AFSS…