Patent ID: 7527211
Filing Date: 2009-05-05
Classification: F02M,Y10S

Abstract:
1. In a fuel injector for internal combustion engines, having a control valve ( 1 ) with an electromagnetically actuatable valve needle ( 3 ), in which a coil ( 19 ) is received in a magnet cup ( 18 ) made of magnetizable material, the valve needle ( 3 ) having a head ( 11 ) with an end face stop ( 14 ) at the end of the valve needle ( 3 ) facing the magnetic cup ( 18 ), at least one tubular clamping sleeve ( 23 ) received in the magnet cup ( 18 ), the tubular clamping sleeve ( 23 ) having a slot ( 24 ) extending between its face ends, wherein the diameter ( 28 ) of the end face stop ( 14 ) of the valve needle head ( 11 ) is less than the outer diameter ( 29 ) of the tubular clamping sleeve ( 23 ) and greater than the inner diameter of the tubular clamping sleeve ( 23 ) so that upon opening of the valve the valve needle ( 3 ) will strike against only the tubular clamping sleeve ( 23 ), and not against the magnet cup ( 18 ).