2-Stroke and 4-Stroke – Page 7

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    Joined Up Thinking: MAN’s New NH3 Engine Is On Track


    Thomas S. Hansen, Head of Promotion and Customer Support at MAN Energy Solutions, 2-Stroke has provided an update on the new ammonia engine’s development schedule

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    EPS reported to place 3+3 dual-fuel NH3 Newcastlemax order


    Eastern Pacific Shipping (EPS) is reported to have placed an order for three Newcastlemax bulk carriers with Qingdao Beihai Shipbuilding Heavy Industry, with an option for a further three vessels, according to Chinese-language social media reports and broker reports. The order is understood to be the first order for bulk carriers to be powered by dual-fuel engines capable of operating on ammonia as fuel.

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    New Small-Bore Methanol Genset


    In response to the seemingly inexorable rise of dual-fuel propulsion, MAN Energy Solutions is to augment its genset portfolio with a methanol-capable, auxiliary engine. The foundation for the new L21/31DF-M genset is the current L21/31 small-bore, four-stroke platform.

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    Methane slip reduction potential of Wärtsilä engine solutions


    Swedish shipping company Furetank has announced that it is co-developing and testing two technologies with Wärtsilä that demonstrate the potential to halve methane slip emissions.

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    MAN’s 95-bore LGIM engine ready for Maersk newbuildings


    Representatives from MAN Energy Solutions and A.P. Moller – Maersk presented an update on the methanol engines powering recent newbuilding orders at CIMAC 2023, including the new 95-bore developed for larger vessels.

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    WinGD plans next updates to X-DF engine


    The developments from the X-DF1.0 to X-DF2.0 involved inclusion of the iCER EGR technology without changing brake mean effective pressure (BMEP), but now WinGD is looking to further increase efficiency and reduce emissions, this time with changes to BMEP.

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    Mitsubishi Shipbuilding begins NH3 abatement system demonstration tests


    Mitsubishi Shipbuilding Co., Ltd., a part of Mitsubishi Heavy Industries (MHI) Group, has announced the beginning of demonstration tests of the ammonia gas abatement system (AGAS) at its testing facility at Nagasaki District MHI Research & Innovation Center. The tests are intended to demonstrate that the AGAS can safely process surplus ammonia from ammonia-fuelled vessels.

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    Chevron broadens collaboration with Cummins into biofuels


    Chevron’s US subsidiary Chevron U.S.A. Inc., signed a memorandum of understanding with Cummins on 10 August extending the scope of an existing 2021 strategic collaboration agreement to cover biofuels, including renewable natural gasoline blends and biodiesel. The new agreement is intended to encourage the commercial and industrial adoption of the fuels in North America.


    New engineBOLL marine filtration system gains market share


    BOLL & KIRCH has announced that its newly developed engine filtration system has received more than 1,000 orders since its recent launch, gaining a strong position in orders for MAN Energy Solutions’ ME-type engines.

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    Ammonia combustion without ignition improver demonstrated on single cylinder test engine


    Mads Carsten Jespersen and a team of researchers from Technical University of Denmark (DTU) presented research into widening the operating limits of a spark-ignited engine operating on pure ammonia and confirmed that combustion of 100% ammonia, pre-mixed with air but without an ignition improver is feasible.

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    MAN’s 49/60DF engine ushered in a new generation of engine control


    MAN Energy Solutions highlighted the development work that went into the 49/60DF engine at CIMAC 2023.

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    Hanshin Gas Engine Thermal Efficiency Exceeds Diesel


    A team from Hanshin Diesel led by Satoru Higashikawa presented results at CIMAC 2023 demonstrating the thermal efficiency of the company’s low speed 4-stroke gas engine.

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    J-ENG expands China customer support


    Japan Engine Corporation (J-ENG) has announced the opening of its first customer support center in China. The office in Shanghai opened on 1 August.

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    1MW Scale SWRI Tests Reveal Positive H2 Results


    Researchers from Texas-based Southwest Research Institute studied the effects of introducing hydrogen on a diesel engine that had not been optimised for its use and found no short-term noticeable change in engine operation.

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    Wärtsilä to supply MeOH-fuelled auxiliaries for CMA CGM newbuildings


    Wärtsilä has been awarded an order to supply the methanol-fuelled auxiliary engines for six newbuild container vessels on order for the French shipping company CMA CGM.

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    MAN ES adds Hengli Engine to list of 2-stroke licensees


    Hengli Engine (Dalian) Co., Ltd., (Hengli Engine), agreed a marine two-stroke manufacturing licence agreement with MAN Energy Solutions on 7 July, and plans to enter the marine engine building market. 

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    Wärtsilä targets high injection pressure for methanol


    Methanol has already proven to have the potential to become one of the key solutions for the marine industry to reach net carbon neutrality, and Wärtsilä has multiple newbuild and retrofit solutions available already.

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    Wärtsilä advances testing of new combustion concept


    Wärtsilä has put a considerable R&D effort in developing the next generation of its dual-fuel lean burn gas engine, with about 300 hours testing completed.

  • WTZ Roßlau has specific expertise in conducting research into hydrogen vectors on its single-cylinder test engines (credit: WTZ Roßlau)

    MAN ES participating in 4-stroke methanol retrofit research project


    MAN Energy Solutions has launched a project to develop retrofit solutions for medium-speed marine engines. The ‘CliNeR-ECo’ project includes partners from industry and research institutes, and will run until the end of 2025. Research association comprising MAN Energy Solutions, WTZ Roßlau gGmbH and TU Darmstadt start ‘CliNeR-ECo’ project.

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    MAN 175Ds for Svitzer tugs


    UZMAR Shipyards in Turkey has placed an order for 4 × 12V175D-MM IMO Tier II engines, each rated at 2,400 kW @ 1,800 rpm, for two TRAnsverse tug newbuilds.