Patent ID: 6517047
Filing Date: 2003-02-11
Classification: F02M,F16K,Y10S

Abstract:
A control valve for a fuel injection nozzle, comprising a control chamber (12), into which a fluid conduit (14) discharges, a valve element (18), which rests on a valve seat (16) in the control chamber, so that the fluid conduit is closed, an armature plate (22), which is disposed in a damping chamber (24), said armature plate (22) is integral with a pressure piece (20) that cooperates with the valve element, and having an armature coil (28) which acts upon said armature plate when excited, andbetween the control chamber (12) and the damping chamber, an overflow conduit (30, 32, 34) is provided, there being no other outlet from the control chamber (12), and the overflow conduit having means to restrict the flow there through, so (12) and through the overflow conduit (30, 32, 34) by the closing of the valve element (18) against the valve seat (16) causes damping of the valve element (18).