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Firing Order
Most marine engines have several cylinders for more power and smoothness. (The cylinders are identified…
Posted inMarine diesel engine
Timing – valves, injection and ignition
Diesel engines Timing methods vary widely in different engine designs, but all must be set…
Posted inMarine diesel engine
The work cycle
A sequence of four operations called the work cycle must occur for engines to work:…
Posted inMarine diesel engine
Principles of internal combustion engines
Operating principles Combustion is the process in which fuel heated beyond its flash point ignites…
Posted inMarine diesel engine
Essential Terminologies
1. Meaning of a complete cycle: a) Intake of Air b) Compression of Air…
Posted inMarine diesel engine
2-stroke & 4-stroke Engine comparison
2-Stroke Engine cycle in comparison to 4-stroke Engine: 2-Stroke Engine4-Stroke Engine2 strokes to complete 1…
Posted inMarine diesel engine
2-Stroke Engine
Above: Timing Diagram for a 2-stroke Engine Cycle StagesPiston MotionTemp. Of Compressed Air(°C)Pressure of Compressed Air…
Posted inMarine diesel engine
4-Stroke Diesel Engine
Above: 4-stroke Diesel Engine timing diagram StagesPiston MotionTemp. Of Compressed Air (°C)Pressure of Compressed Air…
Posted inMarine diesel engine
Starting Air System
Purpose of Air Start System: · A high pressured compressed air will start cranking the flywheel…
Posted inMarine diesel engine
Fuel Oil System
Essential Components: · Fuel Pump · Fuel Injector · Fuel Delivery Pipe Fuel pump: · Deliver a specific amount…