| 摘要 |
An injection nozzle for an internal combustion engine comprising a nozzle body defining a seating surface and having at least one first nozzle outlet and a valve member received within the nozzle body and engageable with an external seating defined by the seating surface so as to control fuel injection through the at least one first nozzle outlet. The valve member is provided with a bore having an internal bore surface and an insert is received within the bore. The insert includes a part-spherical head which spans an internal diameter of the bore so as to maintain contact with an internal surface of the bore as the valve member moves, in use, so as to guide movement of the valve member. The part-spherical head also includes a surface which defines an internal seating for the valve member.
|
