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Maritime Dictionary

Four-Stroke Engine

Marine Engineering

Meaning

Definition

A type of internal combustion engine that completes a power cycle in four strokes of the piston (two revolutions of the crankshaft). In maritime applications, four-stroke medium-speed diesel engines are commonly used as main engines on smaller vessels and as auxiliary engines and generators on larger ships.

Related Terms

See Also

Two-Stroke EngineAuxiliary Engine
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