| 摘要 |
<p>A nozzle assembly (10) has a nozzle body (14) and a nozzle insert (12). A sealing member for the assembly is mounted in a groove on the nozzle insert (12), so as to be removed with the insert (12). The sealing member (88), for example an O ring, provides both a sealing function and resiliently biases the insert (12) and body (14) into engagement with one another. Locking projections are provided on the body (14) and insert (12). The insert (12) has a frusto-conical surface (64) on which the O ring (88) is mounted, so that the O ring (88) is both stretched radially and compressed between the body and insert. A second O ring seal (89) can be provided. For ease of manufacture, locking projections on the insert (12) are formed by a pressing operation, and these locking projections can include a short step to facilitate the engagement of the nozzle body and nozzle insert.</p> |
