Correct.
I know cummins uses upwards of 30,000 psi on there common rail systems. At these fuel pressures, it is vital to keep any moisture out of the fuel. Since water is none condensable, it will blow the injector tip right off and wreak havok. A fuel/water seperator is mandatory. Maybe this is part of the problem with gasoline engines?
Quote:
Originally Posted by Matt D.
I thought it was the necessity of the high fuel pressure in direct injection systems (1000psi+) to overcome the cylinder pressures and to provide proper atomization, otherwise whatever is in the cylinder would be forced right back into the fuel system once the injector opened.
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