BLADELESS APPARATUS FOR INTERMEDIATE STAGE OF CENTRIFUGAL SUPERCHARGER Russian patent published in 2001 - IPC

FIELD: mechanical engineering; centrifugal compressors. SUBSTANCE: bladeless apparatus for intermediate stage includes impeller, bladeless apparatus proper and reverse guide apparatus. Bladeless apparatus is provided with revolving (at relative radial extent of ) divergent () diffusers and circular swivel passage. Apparatus has passage at varying width from b₂ over impeller blade tips to boundary width of revolving diffuser b₃ = 0,9-0,95b₂, outlet width of divergent diffuser b₄ = 1,4-1,45b₂, width of circular passage at turn of flow through 90 deg. from radial to axial direction b₅ = 1,65-1,7b₂ and width of passage at reverse guide apparatus b₆ = 1,1-1,15b₂,. EFFECT: efficiency of intermediate stage of centrifugal supercharge. 1 dwg