Honed to perfection

Article Abstract:

Increased speeds and higher expectations demanded by ship owners have forced the makers of low-speed engines to hone cylinder bores. scuffing, trumpeting and ovality are three of the main problems associated with cylinder bores which are not honed.

Engines, Machine dynamics

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Straight down the line

Article Abstract:

Bearing problems associated with misaligned marine engine shafts can be prevented with the installation of a new anti-hogging and sagging device designed by engineering firm MAN B&W.

Marine engineering, Shafting, Shafts (Machinery), MAN B og W Diesel A/S

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Harnessing spare power

Article Abstract:

Electrical control power-take-off- (PTO) and power-take-in- (PTI) driven generators are increasingly being used in sea vessels. The generators are driven from the main engine. PTO and PTI can provide an economical and efficient method of powering a wide range of onboard equipment and optimizing spare engine capacity for electric power production. The electrical control also enables greater speed variation.

Management, Energy use, Ships, Electricity

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