Reliability remains prime consideration for the future

Article Abstract:

Participants at a panel discussion held during the Motor Ship's 15th International Marine Propulsion Conference noted that engine and electronic equipment reliability will continue to be a major consideration in engine design. Consequently, two-stroke diesel engines will continue to be a primary choice of shipbuilders because of their reliability. In addition, otherpanelists stated that the application of 'intelligent' systems in engine monitoring will depend on their credibility as fail-safe systems.

Usage, Panel Discussion, Computer terminals

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Installations illustrate medium-speed options

Article Abstract:

The increased demand for power output on board ships has forced ship designers and engine manufacturers to develop new engine configurations. New engine configurations allow engine crews to change engines to meet the varying power output needs for'sightseeing' speed, normal cruising and high speed modes. In addition, these engine configurations also allow crews to adapt power output to the needs of other non-propulsion demands such as electrical power and maneuvering power.

Cruise ships, Ship registers

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New plain bearing gives reliability and compactness

Article Abstract:

The design of Mitsubishi's contra-rotating propeller required a new bearing which would overcome the problem of counter rotation and subsequent loss of lubricant oil. In the new design, highly pressurized oil is pumped into the internal shaft. This minimizes the chances of misalignment and lessens the inclination between shaft and bearing. A discussion of the bearing's tests in action is given.

Innovations, Propellers, Fluid-film bearings

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