| 摘要 |
PURPOSE:To ensure stable ignition and satisfactory mixture forming property by constituting independently a fuel path and different kind fluid path and controlling the drive current for a electromagnetic valve with a controller. CONSTITUTION:Pressure waves sent from a fuel injection pump and reaching a fuel reservoir 15 through a fuel path 11 pushes up a needle 04 so that the fuel injection from a jet 01 is started. A controller 14 controllably drives an electromagnetic valve 06 in a necessary time and current pattern during a preset period on the basis of the rotational frequency and load detecting signal of an engine. When the electro-magnetic valve 06 lifts a heterogeneous fluid side needle valve 05 according to an operating signal from the controller 14, a heterogeneous fluid paths 18 and 12 communicate to each other and a pressurized heterogeneous fluid reaches the inside of an outer tube 03 through a path 12 and jets through a heterogeneous fluid jet 02 together with fuel. Or after the completion of fuel injection the heterogeneous fluid following spray jets into a combustion chamber. Thus, the correlation between the fuel injection and heterogeneous fluid injection can be set at will. |
