COMPRESSOR, SUPERCHARGER INCLUDING THE SAME, AND THROAT PASSAGE WIDTH ADJUSTMENT METHOD OF COMPRESSOR

摘要

PROBLEM TO BE SOLVED: To flexibly correspond to various specifications while reducing a manufacturing cost of a centrifugal compressor.SOLUTION: A compressor 8 includes: a throat passage 41 formed on a radial direction outer periphery side of a compressor impeller 18; a plurality of guide vanes 43 for forming a diffuser 23 by one end in an axial direction being fixed to a passage side surface 92a of the throat passage 41; and a spacer plate 45 being superposed with the passage side surface 92a by a plurality of slit holes 47 in which the guide vanes 43 are inserted being formed. The axial height of the guide vane 43 can be changed by replacing the spacer plate 45 with the one having different thickness. Thereby, by properly selecting plate thickness T of the spacer plate 45, width W of the throat passage 41 can be changed to correspond to various specifications flexibly.SELECTED DRAWING: Figure 2