| 摘要 |
<p>The spinner (10) has an annular groove (20) provided at its downstream end and including radial inner and outer cylindrical surfaces (22, 24) centered on a spinner's axis (12), where the spinner is made of plastic/metal. The groove has a radial bottom surface (42) with passage orifices to receive a fixation screw (46). A groove sealing ring (26) has an outer surface aligned with an outer surface of the spinner. The ring is connected to a threaded cylindrical surface (28) at its upstream end, where the surface (28) is formed in a direction inverse to a rotational direction of a fan blade (18).</p> |
