Main features of Cummins PT pump fuel system: In the PT pump fuel system, the fuel generates high pressure, and the timing distribution and fuel volume adjustment are in the fuel pump. In the fuel pump and fuel injector fuel system, the fuel generates high pressure, and the timing distribution and fuel volume adjustment are in the fuel pump and the injector, only about 20% of the fuel entering the injector is injected into the combustion chamber from the fuel injector, the remaining fuel cools and lubricates the injector and returns to the fuel tank. Because the fuel pump in the PT fuel pump system only outputs low oil pressure without high-pressure fuel pipes, there is no problem of pressure waves at high speed, and the driving speed under the injector plunger is fast, the size of the injection hole is small, so the injection pressure can reach 100MPa, which is beneficial to combustion atomization, full combustion, and good economy. It can be seen that Cummins PT fuel sy...
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