| 摘要 |
A lift-limiting plunger (13) is slidably fitted in a chamber (6) to receive fuel pressure for limiting the lifting amount of nozzle needle (14). A back pressure chamber (6a) is defined by an end face of the plunger. A selector valve (21) is controlled by an electronic control unit. A pressure inlet chamber (18a) communicates with the back pressure chamber and is selectively communicated with the fuel intake passageway, in synchronism with selective establishment and interruption of communication between the back pressure chamber and the fuel intake passageway. An accumulator (19) is slidably fitted within an accumulator chamber liftable in a direction away from the pressure inlet chamber.
|
