FUEL INJECTION DEVICE, PARTICULARLY FOR INTERNAL COMBUSTION ENGINES WITH DIRECT FUEL INJECTION

摘要

Disclosed is a fuel injection device (24) comprising a housing (30) and a valve element (34) which can be impinged upon by a sealing edge (39) counter to the valve seat area (36) located on the housing side. A fuel discharge duct (38) extends into the valve seat area (36). A conical area (42) of the valve element (34) is disposed downstream of the sealing edge (39) while a recess (44) is provided within said conical area (42). The depth of the recess (4) in a direction running vertical to a plane located tangential to the conical area (42) of the valve element (34) amounts to a maximum of one tenth of a width thereof, the width extending on the plane located tangential to the conical area (42) of the valve element (34) and on a plane on which the longitudinal axis (48) of the valve element (34) is located.