| 摘要 |
The diffuser has through-openings (5) provided in a diffuser face (1) that is made of plastic. Curve-shaped air guiding elements (6) are arranged in a flow direction, where a mean blade angle of the elements is of different sizes along a longitudinal extension of the elements. The blade angle lies between a plane of the diffuser face and a straight line. The straight line runs between upstream and downstream side edges of the elements. Width of the through-openings is smaller than a projection of the elements associated with the through-openings.
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