Fuel injector for internal combustion engine, has actuator actuating injection valve unit that is supplied with pressure over one of control areas, where two control areas are separated from each other by intermediate disc between areas

摘要

The injector has an actuator actuating an injection valve unit, and a pressure intensifier with a transmitting area (24). The unit is mechanically coupled with a transmission unit of the intensifier. The transmission unit is supplied with pressure over the area and the valve unit is supplied with pressure over a control area (48). Control areas (36, 48) are separated from each other by an intermediate disc (32) between the areas.