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Minimum fuel oil delivery pressure required for

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  • Minimum fuel oil delivery pressure required for

    efficient fuel injection depends primarily on which function?

  • #2


    maximum pressure in the engine cylinder during injection.

    When the piston is approaching TDC on compression stroke, the fuel oil injected into the cylinder. The fuel oil injected has to overcome

    the resistance or backpressure offered by the high pressure compressed air. Hence the pressure of the fuel oil injected has to be more than

    the pressure inside the cylinder head; otherwise it will not be possible for the fuel to penetrate the mass of dense air available. This will

    result in improper combustion of the fuel. Hence it is necessary to maintain minimum injection pressure higher than the compression

    pressure existing at the time of injection.


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