Patent ID: 6764031
Filing Date: 2004-07-20
Classification: F02M

Abstract:
A fuel injector for a fuel injection system of an internal combustion engine, comprising:a valve needle; a valve seat body in which is disposed a valve seat surface; a valve closing body mechanically linked to the valve needle and cooperating with the valve seat surface to form a sealing seat, the valve seat body including a plurality of recesses downstream from the sealing seat; and a flow-through screen situated downstream on the valve seat body, wherein: in the flow-through screen, for each of the plurality of recesses, at least one discharge orifice is introduced, cross-section of the at least one discharge orifice is smaller than that of an associated one of the plurality of recesses, and an inlet cross-section of the at least one discharge orifice is situated fully within an outlet cross-section of the associated one of the plurality of recesses.