Patent ID: 7306173

Claim:
A fuel injector for a fuel-injection system of an internal combustion engine, the engine having a combustion chamber, the fuel injector comprising: a valve-seat member having a cup-shaped design; a valve-seat surface situated at the valve-seat member; a valve-closure member which, together with the valve-seat surface, forms a sealing seat; an energizable actuator; a valve needle in operative connection with the actuator; a restoring spring acting upon the valve needle in a closing direction to actuate the valve-closure member; and at least two spray-discharge orifices situated in the valve-seat member, an axis of each orifice having a different spatial orientation within the valve-seat member, the valve-seat member having a convexly rounded end face forming an outermost tip of a discharge-side part of the fuel injector on which a shielding of the spray-discharge orifices formed on the convexly rounded end face as one single rounded ring wall surrounding all of the at least two spray-discharge orifices and projecting beyond the at least two spray-discharge orifices in an axial direction from the convexly rounded end face is provided to prevent a return flow of the fuel to the spray-discharge orifices.