Propulsion – Page 78

  • The RDPS Alpha sealing system
    News

    Piston seals for high-viscosity cylinder oils

    2012-11-30T23:31:00Z

    The RDPS Alpha piston sealing system has been developed to counter problems resulting from the effects of emission regulation and slow steaming on cylinder lubrication, as described by Ernie Terry of Marine Sealing Services, UK.

  • Caterpillar’s G3500 pure-gas marine genset engine
    News

    Cat goes for pure gas genset power

    2012-11-30T23:30:00Z

    At the recent SMM exhibition in Hamburg, Caterpillar Marine Power Systems announced that it is currently developing a high speed gas engine based on the 3500 engine platform.

  • The 62cm bore version of Wärtsilä’s Generation X engine family
    News

    A shorter route to greater profits

    2012-11-30T23:30:00Z

    Wärtsilä’s so-called ‘new generation’ – the Generation X series – of two-stroke engines was introduced in May 2011, with the aim of significantly contributing to lowering marine engine fuel costs and improving environmental performance.

  • MAN’s GI-fitted ME research engine
    News

    Progress on gas-fuelled two-strokes

    2012-11-30T23:30:00Z

    The pressure to find alternative fuels, driven by both emissions legislation and the resulting commercial pressures that threaten to drive up the cost of low-sulphur fuel oils, is impacting on the low speed engine market.

  • Volstad’s OCV ’Grand Canyon’, for which NES has supplied what is claimed to be the world’s largest low voltage diesel electric plant.
    News

    Success for Norwegian electro specialist

    2012-11-01T00:00:00Z

    Norwegian Electric Systems says that since it was established in October 2009, it has achieved a sales turnover close to 1 billion NOK.

  • Caterpillar’s C175-16 extends the capabilities of the existing 3516 platform
    News

    New high-speed propulsion and gas-fuelled genset engines added to Cat high-speed range

    2012-11-01T00:00:00Z

    Caterpillar Marine Power Systems has announced a new high-speed propulsion engine based on its 3516 platform, but optimised to deliver clean-burn combustion along with an up to 15% power increase in its commercial ratings.

  • Operation of Voith’s swing-out azimuthing rim-drive thruster
    News

    Voith adds swing-out capability to rim-drive thruster

    2012-11-01T00:00:00Z

    At the recent SMM show in Hamburg, German manufacturer Voith featured a new version of its rim drive thruster - a retractable azimuthing unit.

  • MAN is raising the stakes in the dual-fuel engine market with the new 35/44DF series, seen here in six-cylinder format
    News

    MAN boosts dual-fuel marine offering

    2012-10-01T00:01:00Z

    MAN is adding a new string to its bow in the dual-fuel stakes through the development of the 35/44DF marine engine, to serve a broad power band in 10 configurations, writes David Tinsley.

  • Masson Marine has developed a propeller-pump for improved propeller efficiency that consists of a stator assembly, specific nozzle and rotor
    News

    New propulsor designs target speed and manoeuvrability

    2012-10-01T00:00:00Z

    Some are still on the drawing board, but a range of new propulsor designs are expanding speed and manoeuvrability limits for high speed vessels, says Wendy Laursen.

  • The benefits of dual-fuel operation
    News

    MAN unveils latest cruise power technology

    2012-10-01T00:00:00Z

    Henrik Segercrantz speaks to MAN Diesel & Turbo about the future of four-stroke propulsion, particularly concerning passenger vessels.

  • Incheon Port Authority's new guideship will use Wärtsilä dual-fuel machinery and Stadt Stascho's No-Loss electric drive system
    News

    No-loss electric drive for Korean ‘green ship’

    2012-10-01T00:00:00Z

    David Tinsley describes an innovative, Norwegian-developed electric propulsion system ordered by Samsung Heavy Industries as part of a South Korean ‘green ship’ initiative.

  • A 170t bollard pull AHTS with 2x2 XL27/38 engines with twin in/single out RENK gearboxes and CP propellers was tested running the engines from idle speed 38Hz to 61Hz; the auxiliary genset provided power for the hotel load: a fuel saving of 41% ...
    News

    Constant speed versus variable engine speed

    2012-09-01T00:00:00Z

    A study by MAN Diesel & Turbo compares a diesel mechanical plant with CP propellers operating with constant engine speed with operations at variable engine speed on an offshore vessel. Henrik Segerkrantz explains.

  • Castrol recommends its new 80BN cylinder oil for ships undertaking long ocean voyages at ultra-slow speed
    News

    Lubrication dangers of slow steaming

    2012-08-28T15:44:00Z

    According to Castrol Marine, it is vital to have a choice of different cylinder oils to suit the varying demands of slow steaming and fuel sulphur content.

  • NPT propeller from Stone Marine Propulsion
    News

    Advanced propeller designs suit slow revving engines

    2012-08-28T15:43:00Z

    Advanced propeller designs such as the NPT, Kappel and CLT find their worth with ultra slow speed diesel engines, writes Wendy Laursen

  • New crankshaft taken onboard
    News

    Engine service organisation reports difficult cases

    2012-08-28T15:43:00Z

    MAN PrimeServ has handled some demanding repair jobs on both two-stroke and four-stroke engines, as discovered on a recent visit by Henrik Segercrantz to MAN PrimeServ’s hub in Hamburg, Germany.

  • The new 32/44 K genset, built with conventional fuel injection
    News

    MAN looks forward to next-generation diesel-electric power

    2012-08-01T00:00:00Z

    Propulsion requirements for diesel-electric offshore vessels with deeper-water capabilities have come under the microscope at MAN. Henrik Segercrantz reports

  • ABB Turbocharging has retroffitted its high efficiency type A175-L34T turbocharger with VTG variable turbine geometry, and integrated control technology mounted on the turbocharger, on the engine of the container feeder ship Alexander Maersk
    News

    High charge air pressure for clean engines

    2012-07-30T13:22:00Z

    ABB Turbocharging, of Switzerland, recently released for sales and production the first frame size in its A100-L series of high pressure turbochargers for low speed, two-stroke engines.

  • Rendering of the diesel-electric Italian Coastguard OSV, with ZF ‘hybrid ready’ transmission
    News

    Transmissions for specialised applications

    2012-07-01T00:07:00Z

    Transmission specialist ZF Marine says that it is involved in several specialist applications, supplying, in some cases, thrusters and propellers as well as reduction gearboxes.

  • 1.‘RT Adriaan’ was converted from an almost new rotor tug into Europe’s first true hybrid in just three months (photo courtesy Hans Hoffman)
    News

    European hybrid tugs are coming to fruition

    2012-07-01T00:06:00Z

    Tug owners worldwide have long recognised the need to meet future demands for more environmentally acceptable vessels, and Europe is joining the USA in making ‘green’ tug power a reality, writes Jack Gaston.

  • Conceptual design at the beginning of a project cuts the risk of wasted money and time later on
    News

    Conceptual design avoids expensive delays

    2012-06-30T15:50:00Z

    The importance of conceptual design and pre-engineering in the design of complex systems such as those for propulsion was recently reinforced for Alewijnse Marine Systems when the opening stages of a new contract took considerably longer than was originally anticipated.