| 摘要 |
PURPOSE:To secure the injection pressure of a given high pressure at all times and permit to effect direct starting easily even in case low-quality oil is empolyed by preventing the adhesion of the fuel by a method wherein injection timing is permitted to be changed arbitrarily and the fuel is circulated during stopping the engine by opening the check valve of a nozzle holder. CONSTITUTION:The injection timing of the fuel may be adjusted by rotating the control plunger 46 of an injection timing control pump device B. The injection timing is changed in accordance with the revolving number of the engine by rotating the plunger 46 by a control equipment 50 receiving a command from a sensor 49 detecting the revolving number of the engine. On the other hand, during stopping the engine, the check valve 37, incorporated into the nozzle holder, is opened. According thereto, the fuel supplied to the plunger chamber 65 of the injection amount control pump device C returns to a fuel tank D. According to the circulation of the pressure oil of high temperature, the fuel in a fuel circuit may be prevented from being adhered during stopping the engine. |
