Marine diesel engine 4 min read
Slow Medium High speed diesel Engines
The term medium refers to diesel engines that operate with in the approximate speed range 250 to 800 revolutions per…
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Marine diesel engine 4 min read
Components and functions of IC Engines
The cylinder block is the main body of the engine, the structure that supports all the other components of the…
Marine diesel engine 6 min read
VALVE TIMING DIAGRAM OF TWO STROKE AND FOUR STROKE ENGINES
THEORETICAL AND ACTUAL A valve timing diagram is a graphical representation of the opening and closing of the intake and…
Marine diesel engine 5 min read
8 Common Problems Found In Ship’s 2-Stroke Marine Engines
The 2-stroke marine engine is the main propulsion power source and also the biggest machinery on a ship. A great…
Marine diesel engine 4 min read
Maintenance
Running checks should include: Gear box – oil level; inspect for leaks around casing; ensure pins and bolts in mechanical linkages…
Marine diesel engine 5 min read
Gearing and tail shafts
Ships with low speed engines typically use direct drive from the crankshaft to the tail shaft with its propeller. Smaller…
Marine diesel engine 8 min read
Engine cooling
Marine cooling systems The purpose of a cooling system is to maintain a constant temperature throughout the engine that minimises…
Marine diesel engine 6 min read
Diesel fuel systems
Direct supply A simple diesel fuel supply system is shown below. The fuel tank with filler cap and venting breather…
Marine diesel engine 5 min read
Fuel supply, injection and control
Petrol fuel systems Petrol engines use similar tank and supply arrangements to the diesel but dependant on the engine complexity…
Marine diesel engine 4 min read
Engine protection – devices
In best practice vessels of the 25 metres class (80 tonne) will be fitted with an audible warning device to…
Marine diesel engine 4 min read
Operation of the turbo charger on a diesel engine
In a four stroke engine, exhaust gases flow from each cylinder into the exhaust manifold and then past the turbine…
Marine diesel engine 3 min read
Air supply
Turbo charging A turbo charger (sometimes called a turbo blower) can be fitted to both two and four stroke engines…