| 摘要 |
The radial blower has an intake air duct (3) which is arranged in the intake port of the radial blower. The interspace existing between the air intake duct (3) and the outer wall of the spiral casing (1) is partially filled by a nose (5). Using a radial blower of this type, it is possible to increase the coefficient of pressure and to raise the delivery rate, without increasing the noise level at the same time. <IMAGE>
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