| 摘要 |
A guide device for a diffuser at the compressor wheel outlet of a radial compressor has guide blades (10, 20) with stepped inlet edges (11, 21). The step is realized by recessing the hub-side inlet edge (21). Said meridional stepping divides the guide blades into two partial blades (10, 20), of which a first partial blade (10) is longer than the second partial blade (20). The recessing of the inlet edge of the hub-side partial blade, and the associated superposition of the sound fields which are generated at the front and rear inlet edge of the diffuser, leads to an improvement of the acoustic properties of the compressor.
|
