Patent ID: 6755347
Filing Date: 2004-06-29
Classification: F02M

Abstract:
A method for adjusting a flow quantity in a fuel injector that includes an excitable actuation element, that includes a valve-closure member that can be moved axially along a longitudinal valve axis and that, for the purpose of opening and closing a valve, cooperates with a fixed valve seat configured on a valve seat element, and that includes one of a multilayer and multiple-disk, perforated disk arranged downstream of the valve seat, the method comprising the steps of:measuring a discharged fuel quantity of the fuel injector when opened; and deforming a lower base layer of the perforated disk in a direction of the valve seat into a vacant flow-cross-section of a layer situated on top of the lower base layer, wherein, as a result, the vacant flow-cross-section within the perforated disk is changed until an actual quantity discharged corresponds to a predetermined setpoint quantity.