Propulsion – Page 80

  • EGR unit (shown in orange) on MAN low-speed engine
    News

    Two-strokes gear up for latest emission regulations

    2012-01-31T23:45:00Z

    The two main low-speed engine designers continue to bring upgraded versions of their range to the marketplace.

  • Close-up view of the CLT propeller on tanker ‘Roy Maersk’
    News

    Maersk opts for energy-saving propellers

    2012-01-31T23:00:00Z

    During 2011, Spanish company Sistemar, part of the Cintranaval-Defcar group, concluded a trial in conjunction with A.P. Moeller – Maersk on Sistemar’s CLT propeller.

  • Seatek’s latest high-performance V12 engine is being adopted for patrol craft applications
    News

    12-cylinder engine designed for high power and light weight

    2011-12-31T23:45:00Z

    Italian engine manufacturer Seatek is probably the only diesel engine builder in the world that builds engines dedicated to the marine market, writes Dag Pike.

  • Reintjes’ Fortjes drive is intended to fill the gap between the smaller commercial pod drives and leisure craft-derived units
    News

    New fixed podded drive

    2011-12-31T23:45:00Z

    Gearbox manufacturer Reintjes is the latest company to enter the developing market for pod drives for smaller vessels, writes Dag Pike.

  • Lockheed Martin’s proposal for the Littoral Combat Ship is powered by Rolls-Royce gas turbines and Kamewa waterjets, with Pielstick-designed diesels completing the CODAG plant (Picture: Lockheed Martin, prime contractor)
    News

    Europeans supply propulsion for US Navy

    2011-12-31T23:45:00Z

    Rolls-Royce and Converteam have recently secured multi-ship high-power propulsion contracts with Lockheed Martin and General Dynamics NASSCO, writes Henrik Segercrantz.

  • Model illustrating the compact architecture of MAN two-stage turbocharging with intermediate cooling
    News

    Turbo developments major on increased airflow and greater efficiency

    2011-12-31T23:45:00Z

    Advances in turbocharger design allow smaller frame sizes, energy savings, higher efficiency, reduced emissions and cost savings, writes David Tinsley

  • A 22-shipset patrol craft order for MJP waterjets from French yard OCEA has resulted in further global orders
    News

    Success for Swedish waterjets

    2011-12-31T23:45:00Z

    Swedish waterjet maker MJP reports several recent significant military orders for its products.

  • One of the new MTU 1163 TB 73L is craned onboard a Colombian navy frigate
    News

    Colombian Navy modernisation project

    2011-12-30T23:00:00Z

    After 30 years of service, the Colombian Navy’s Almirante Padilla class frigates are being modernised at the Cotecmar naval dockyard.

  • The new generation of MTU’s series 1163 engines sees a newly developed version of the engine, without exhaust after-treatment, seen here in the: 20-cylinder version
    News

    Ready for the next emissions stage

    2011-12-30T23:00:00Z

    The further development of MTU’s series 1163 engine for the IMO Tier II limits is described by Christoph Fenske, senior manager, application center marine, naval surface craft at MTU Friedrichshafen.

  • Hyundai's inexorable development of its HiMSEN brand has included this year's release of vee-form models in the H25/33 medium-speed series
    News

    Hyundai expands home-grown engine range

    2011-11-30T23:45:00Z

    In a relentless drive to extend the market reach and brand power of its home-grown HiMSEN four-stroke range, Hyundai Heavy Industries’ Engine & Machinery Division (HHI-EMD) has introduced more powerful variants of its smallest medium-speed design, the H17/28.

  • Opened this year, MAN's CentAur emissions test centre at Augsburg is currently connected with two medium-speed engines for SCR(selective catalytic reduction) evaluation and optimisation
    News

    MAN sets up dedicated emissions test centre

    2011-11-30T23:45:00Z

    At the Augsburg fountainhead of its medium-speed engine technology, MAN Diesel & Turbo has this year opened a new emissions test facility.

  • Belgian bastion of medium-speed engine production: ABC continues to build on a diversified business base
    News

    Belgium’s independent maker shows resilience

    2011-11-30T23:45:00Z

    Independent producer of medium-speed engines Anglo Belgian Corporation(ABC) has provided the propulsive power for a new generation of shortsea cargo vessels commissioned by the UK-based company Union Transport.

  • News

    Japanese provide new options in gas engines

    2011-11-30T23:45:00Z

    As a pointer to Kawasaki Heavy Industries’ plans to make its Green Gas Engine series available to the marine market, two 12-cylinder versions of the spark-ignited, medium-speed design have been written into the specification for K Line’s conceptual, LNG-fuelled car carrier.

  • Wärtsilä has given a new edge to competition in the 320mm-bore category of the medium-speed market with a more powerful version of the W32 type
    News

    Wärtsilä strengthens hand in hotly-contested sector

    2011-11-30T23:45:00Z

    Representing a further major stage in the evolution of its 320mm-bore medium-speed engine, Wartsila’s popular W32 series has been augmented by new models offering a 16% power advance over the earlier engine design.

  • The Wärtsilä 50DF tri-fuel medium-speed engine can switch smoothly between natural gas, light fuel oil and heavy fuel oil during operation
    News

    Steep rise projected for dual-fuel applications

    2011-11-30T23:45:00Z

    Implicit in the recent news that Wärtsilä dual-fuel, medium-speed engines have topped 3million running hours in marine and landside applications, the technology has attracted wide endorsement as a viable solution to environmental and economic challenges facing the respective markets. In fact, DF capability is spearheading the company’s technological drive in ...

  • Trelleborg Cushymount XK flexible mounting
    News

    Good vibrations with cushioned mountings

    2011-11-28T23:30:00Z

    Trelleborg Industrial AVS (TIAVS) designs and manufactures mountings and isolation solutions for marine machinery on vessels of every type, and describes some particular products here.

  • Screen shot from ShaftDesigner’s ice impact torsional vibration feature
    News

    Design software aids calculation of shaft vibrations

    2011-11-27T23:00:00Z

    Dutch company Machine Support, part of the SKF group, says that during the period 1998-2006, one third of ship problems were machinery-related, and a significant proportion of these equipment failures resulted from vibration.

  • News

    Well-designed silencers to deal with low frequency noise

    2011-11-27T22:46:00Z

    Danish company Silentor reports success with a project in which an initial order for five silencers grew to encompass the delivery of 84 silencer units in total.

  • Mitsubishi’s MET83MAG  hybrid turbocharger/generator made its debut this year
    News

    Japanese marque puts more resources into R&D

    2011-10-31T23:45:00Z

    Complementing its production of low-speed machinery under licence from Wärtsilä, with whom it has a history of collaboration, Mitsubishi Heavy Industries’ sustained in-house development of the UE range ensures that European designs do not completely dominate the world market for large, two-stroke marine engines, writes David Tinsley.

  • MAN estimates that use of a 7G80ME-C in a VLCC will give rise to an overall efficiency increase of 4%-5% compared with a 7S80ME-C9 or alternative design with the same running speed
    News

    New generation quickly extends market reach

    2011-10-31T23:45:00Z

    Regarded as the most significant development in the MAN low-speed portfolio since the introduction of the ME electronically-controlled generation of engines, the release of the ultra long stroke G-type has proved timely and apposite to market needs, writes David Tinsley.