| 摘要 |
<p>The fan has two induction cavities, the first (A1) of which has an induction aperture (28), The induction aperture has an injector wall (20) extending into the first induction cavity to act as a feed injector. It is in the form of an annular wall, part annular wall or spoiler wall. and improves the achievable static pressure, working pressure and output.</p> |
