CENTRIFUGAL COMPRESSOR IMPELLER Russian patent published in 1998 - IPC

FIELD: centrifugal compressors. SUBSTANCE: impeller has main and cover disks with blades installed between them. Surface of each blade is made in the form of surface of revolution whose angle of inclination to own axis of revolution gradually changes. Axis of revolution is parallel to impeller axis. Impeller geometry is chosen considering relations between impeller entrance and exit radii, blade curvature radius, entrance and exit angles, inclination angle of surface of revolution forming the blade to its axis, and other parameters. EFFECT: improved efficiency of compressor due to shockless flow of medium onto impeller blades. 3 dwg