| 摘要 |
PURPOSE:To properly supply fuel all over the driving area by providing a control valve which is installed in an exhaust pipe in a pressure liquid pipe passage to open and close corresponding to the driving condition of an engine and an electronic controller which gives the control valve opening and closing signals with pulses of a preset duty ratio. CONSTITUTION:A control valve 9 which is installed in an exhaust pipe 85 to open and close corresponding to the driving condition of an engine and an electronic controller 10 which gives the control valve 9 opening and closing signals with pulses of a preset duty ratio are provided. Gas fuel, adjusted to a preset positive pressure, which is injected after metered by a nozzle hole 62 with an effective area adjusted by a computing member 63, is supplied to the engine. Pressure in a pressure liquid room 64 is controlled by the control valve 9, so that a metering member 63 changes the effective area of the nozzle hole 62 in no steps corresponding to the driving condition of the engine to control the amount of injection. The non-compressed quality pressure liquid which is adapted to increase the strokes of the metering member allows the adequate control of the engine all over the driving area. |
