Fuel injector for combustion chamber of internal combustion engine, has control valve combined to hydraulic damper having throttling unit in which fuel is transferred in movement direction by displacement of valve element

摘要

The injector (1) has an injection valve element (9) moved in an axial direction relative to pressure in a control chamber (11) between a closed position and an open position. A control valve (18) is combined to a hydraulic damper (36) having a throttling unit (40) in which fuel is transferred in a movement direction (22) by displacement of a control valve element that is in a sleeve form, in the movement direction, and the fuel is transferred in a movement direction (43) by displacement of the valve element in the direction opposite the displacement direction.