| 摘要 |
<p>A fuel injection nozzle has a valve member (16) slidable in a bore (15) in a nozzle body (13). The valve member has an end profile(31) shaped to engage a seating at the end of the bore. The valve member has an electrically conductive elongated core member (30) which at one end defines the profile (31) and is surrounded in spaced relationship by a metallic sleeve (34) which guides the movement of the valve member in the bore. The sleeve is bonded to the core member by a layer (35) of electrically insulating material conveniently a ceramic, whereby the elongated member is electrically insulated from the nozzle body except when the valve member is in the closed position.</p> |
