Propulsion

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.

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…

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…

An emergent fleet of ore carriers of record-breaking capacity provides references for electronically-controlled ‘cathedral’ engine designs originating from the two main fountainheads of two-stroke diesel technology in Europe, writes David Tinsley.

Efficiency optimisation trends in the containership sector, prompting a shift to lower vessel speeds, have fostered new solutions to powering arrangements and hull design based on the use of larger propellers and…

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…

Through a major initiative to swell its range of low-speed, two-stroke marine diesels, Wärtsilä is set to provide owners, shipyards and designers with greater choice in the mid-size engine category, writes David…

Anders Andreasen, senior research engineer at MAN Diesel & Turbo in Denmark, describes how emulsifier development enables water-emulsified light distillate fuel for reducing nitrous oxide emissions in large marine engines.

Friedrichshafen-based ZF Marine, in conjunction with Dutch company HRP (now ZF Marine Krimpen) has secured a contract with Aberdeen-based global shipping and energy firm, the Craig Group, to supply retractable azimuth thrusters…

Environmental lobby groups are pressing the shipping industry, and its regulators, to move away from traditional oil-based lubricants which are causing significant harm to the global marine environment.

Demands for higher efficiency, lower emissions and fuel restrictions are prompting designers to look at high speed diesel-based prime mover options, by Dag Pike.

Concerns over the extent and pace at which LNG will become obtainable as a marine fuel, and shortcomings in the international bunkering network, make dual-fuel (DF) machinery rather than pure gas engines…

All electronically-controlled ME engines in MAN’s two-stroke range are available as ME-GI dual-fuel versions, incorporating high pressure gas injection arrangements, writes David Tinsley.

Thruster manufacturer Brunvoll has released details of the first propulsion application for its azimuth rim driven thrusters, on a Norwegian ferry operated by Fjord1 MRF.

Bill Mossey, Corporate Manager Pacific Power Products, MTU Detroit Diesel, outlines the company’s approach to preventive maintenance of high speed diesel engines.

In order to meet future emission limits for marine engines with respect to nitrogen oxides (NOx) and sulphur oxides (SOx), engine manufacturers have been developing a number of solutions. This paper from…

The latest technology from turbochargers manufacturers is timed to meet a new era of low engine-emissions and low fuel-consumption. Mark Langdon reviews the options.

The French have long been noted for their marriage of art and design, writes Alan Haig-Brown. The latest design for a fast support intervention vessel (FSIV) demonstrates this once again.