| 摘要 |
<p>A three-part valve means is used in an electromagnetic fuel injector to control fuel flow out through a metering orifice, defined by the valve means in an open position relative to an associated valve seat, to an injector discharge orifice located closely downstream of the metering orifice. The three-part valve means includes a valve member provided with a flat surface on one end thereof and a semi-spherical seating surface at its opposite end for seating engagement with the valve seat; a movable armature having a flat at one end thereof for abutment against the flat surface of the valve member; and, a valve retainer operatively connected to the armature for supporting the valve member with its flat surface in abutment against the flat of the armature for movement therewith, the valve retainer permitting the flat surface of the valve member to move transversely relative to the flat of the armature.</p> |
