Abstract: An injection valve of an internal combustion engine comprises a valve portion arranged in a bore of the valve housing, forming a high-pressure side annular chamber sealed in relation to the valve housing by the sealing contact of the valve portion with a shoulder of the bore and at an axial distance therefrom, by a sealing ring. A spacing sleeve is arranged in the annular chamber and keeps the sealing ring at a minimum axial distance from the shoulder of the bore.

Abstract: The invention relates to a method for manufacturing a fuel injector for an internal combustion engine that has a control valve, which opens or closes an outlet throttle from a control chamber and in which a closing element is moved into a valve seat in order to close the outlet throttle. The valve seat is produced by punch-forming using a forming punch. The invention also relates to a fuel injector that is manufactured in accordance with this method.