1Kraftstoffinjektor for operation with fuel gas

A fuel injector (3) for operation with fuel gas, - wherein the fuel injector (3) to a nozzle end (25) having a gas-nozzle arrangement (23) with at least one gas jet port (27); - wherein the fuel injector (3) has at least one gas nozzle needle (21) which is associated with the gas nozzle arrangement (23) and added hubsteuerbar in an axial seat (29), wherein a respective gas-jet opening (27) (at the nozzle end 25) opening out from the receptacle (29) with a radial directional component; - wherein the fuel injector (3) in the receptacle (29) comprises a needle seat (31) upstream of the respective gas jet port (27), which is provided, in cooperation with the gas nozzle needle (21) has a fuel gas flow path to a respective gas jet port (27) to selectively block; - wherein the one or more gas-Dusenoffungen (27) are arranged partially circumferentially distributed only in the circumferential direction (A) of the gas nozzle needle (21), characterized, in that - the receptacle (29) on the needle seat (31) adjacent to and axially away therefrom in the upstream direction extending asymmetrically with respect to an axial central axis (B) by the gas nozzle needle (21) is formed, wherein - the asymmetry resulting from a cross-sectional enlargement (33) of the receptacle (29) at one to the at least one gas jet port (27) radially opposite side of the receptacle (29), so that by means of the cross-sectional enlargement (33), a larger fuel gas mass flow in the receptacle (29) can be guided as to the opposite thereto gas nozzle opening side (35); - wherein the receptacle (29) is further formed, a part of the cross-sectional enlargement (33) on the needle seat (31) guided combustion gas stream (C) by means of the cross-sectional enlargement (33) already upstream of the needle seat (31) toward the radially opposed imparting at least one gas jet port (27) oriented direction of flow.