DIFFUSER FOR A RADIAL COMPRESSOR

摘要

Illustrative embodiments of vaned diffusers of radial compressors and exhaust turbochargers comprising the same are disclosed. In some illustrative embodiments, angular spacings between guide vanes of the diffuser which are arranged adjacent to one another may vary along the circumference, allowing resonant vibration of the compressor to be reduced. In addition, the narrowest cross-sectional area between in guide vanes can be held constant, allowing an increased efficiency and a positive effect on the surge margin.

主权项

1. A vaned diffuser of a radial compressor comprising:
a plurality of guide vanes distributed in a circumferential direction, wherein a first angular spacing of two guide vanes of the plurality of guide vanes arranged adjacent to one another differs from a second angular spacing of two other guide vanes of the plurality of guide vanes arranged adjacent to one another, the second angular spacing being different from the first angular spacing, wherein at least some of the plurality of guide vanes have angular positions that differ from one another such that a narrowest cross-sectional area of each diffuser channel bounded by any two guide vanes of the plurality of guide vanes arranged adjacent to one another is the same size.