Propulsion

The Norwegian engine manufacturer Bergen Engines, has become part of the Tognum Group, a leading supplier of engines and propulsion systems and distributed power generation systems.

Danish company C.C.Jensen describes, in a case study, how its oil filter systems were installed onboard a number of offshore supply vessels, saving on oil consumption, manpower and cost, paying for themselves…

Wärtsilä has been contracted by Norwegian ferry operator Color Line to retrofit four exhaust gas cleaning systems to the company’s ‘SuperSpeed 2’ ro-pax ferry.

Recent deliveries for offshore and navy applications demonstrate improved maintenance and safety features suitable for all workboats and patrol vessels with waterjet propulsion, writes Wendy Laursen.

Slow steaming, fuel sulphur limits and desires to cut fuel costs and ship weight all provide challenges for two-stroke designers, builders and lubricant suppliers.

Marine gas turbines are looked on as a comparatively new development and most marine turbines have been developed from aircraft engines, writes Dag Pike.

GE Marine has delivered another LM2500+G4 marine gas turbine to Avio of Italy, which will power the French Navy’s eighth FREMM frigate.

Swedish company MJP waterjets says that two recent refits of waterjets allowed a direct comparison to be made between waterjet brands.

An optimised stern tube assembly and improved shaft bearings aim to improve yard installation time.