FUEL INJECTION SYSTEM HAVING VARIABLE PRESSURE FUEL PUMP

摘要

The present invention provides a fuel injection system in which fuel is delivered to the engine by varying the fuel pump pressure creating a variable flow rate through a fuel injector. The system comprises an engine control unit, a variable DC brushless motor fuel pump, and a fuel injector, wherein the engine control unit drives and varies the pump rate of the fuel pump to vary the fuel flow rate to the engine.