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Why does advancing Fuel Oil injection timing in marine diesel engines increase cylinder firing pressures?
Wiki User
∙ 14y ago
It increases pressure because you are firing the fuel into the cylinder as the piston is still rising. This starts the "combustion" early, and gives it enough time to burn ALL the fuel fired into the cylinder. The combusion is also pushing on the cylinder as its rising. This is why you do not want to advance it to much.
Wiki User
∙ 14y ago
Advancing fuel oil injection timing in marine diesel engines allows more time for fuel to combust before the piston reaches the top dead center, resulting in increased cylinder firing pressures. This leads to higher peak pressure, improved combustion efficiency, and better power output from the engine. However, advancing the timing too much can cause knocking and potential engine damage.
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