Engineering · Diesel — Fuel Injection
Proper atomization of fuel by an injector is important because finely divided fuel:
- ABurns more slowly to reduce pressure
- BCools the cylinder
- CMixes thoroughly with air for rapid, complete combustion✓ Correct
- DIncreases sulfur content
Explanation
Fine atomization presents a large fuel surface area to the hot compressed air, promoting rapid evaporation and complete combustion. Poor atomization (worn nozzle, low pressure, cold viscous fuel) causes smoke, deposits, and high exhaust temperature.
Authority: Modern Marine Engineer's Manual; fuel injection
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