Propulsion

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

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.

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

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.

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.

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…

According to motor company Indar, up to now vessels complying with Silent class notation have had to use DC motors, but this has now changed.

Wärtsilä believes that the dual-fuel option for gas-fuelled ships offers economic benefits as well as practical and environmental advantages.