Fuel injection device e.g. for internal combustion engine, has housing and two coaxial valve elements with outer valve element has outer nozzle needle and external coupler pistons

摘要

The fuel injection device (10) has a housing (24) and two coaxial valve elements (30, 32). An outer valve element (30) has an outer nozzle needle (34) and an external coupler pistons (44). A part is arranged between two sections (38) and is inserted in the housing. The leading section of the outer piston coupler (44) and the external nozzle needle (34) are separated parts.