| 摘要 |
<p>The bend (66) in the inlet flow surface (58) is followed by a bend (68) in the opposite direction in the outlet channel (64) which changes into an inclined bottom surface (74) of the expansion chamber (72), with the angle of inclination to the horizontal being at least 10 deg. and may be between 10 and 30 deg. or between 10 and 20 deg. The oppositely orientated bend in the outlet channel may be greater than 90 deg. A second oppositely orientated bend may be connected to the first, and changes into the bottom surface of the expansion chamber.</p> |
