Fuel injection valve for internal combustion engine has pressure division moving portion that divides upper part of nozzle hole and lower part of cylinder hole

摘要

A piston (4) is slidable in a cylinder hole of a lower body. A needle (9) is supported so as to be slidable in a nozzle hole (7) of a nozzle (8) attached to the lower end of the lower body. A sliding shaft (41) between the piston and needle is slidable in a sliding hole (46). A pressure division moving portion (35) divides the lower part of the cylinder hole and the upper part of the nozzle hole.