| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronically controlled gasoline injection device reducing the device cost by simplifying the peripheral structure of a solenoid valve device and by reducing the number of component items, and reducing the emission amount of NOx and providing highly efficient combustion by highly accurately controlling a fuel injection mode adapted to the operation state of an engine. SOLUTION: This electronically controlled fuel injection device is so constituted that a return passage connected from a plunger chamber of a fuel injection pump to the oil feed side is opened/closed by an opening/closing valve directly driven by the solenoid device and the opening/closing valve controls the gasoline injection timing by changing the closing timing of the return passage. The opening/closing valve is characterized in being directly driven to an output end of the solenoid device so as to be reciprocated in a case and being composed of a spool valve opening/closing a return hole provided between the plunger chamber and the return passage. |
