• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 1987, Vol. 23 ›› Issue (3): 69-76.

• Article • Previous Articles     Next Articles

PROFILING METHOD OF CENTRIFUGAL COMPRESSOR HAVING ELLIPTIC VANE SHAPES

Ren Bosen   

  1. Shanghai Internal Combustion Engine Research Institute
  • Published:1987-06-01

Abstract: With the development of high performance and high pressure ratio centrifugal compressor, it is pointed out in reference[1]that the elliptic type is a optimal vane shape during higher pressure ratio. This paper presents a profiling method of elliptic vane shape in which a simple polar equation with elliptic center as pole were estalished by adopting the polar coordinates instead of Descartes coordinates. The relationship between vane camber angleβs,βh[2][3]and polar angle ψ were directly directly derived to give the distribution of vane camber angles βs, βh along the revolution surface of hub and shroud. As an example, the author calculated a centrifugal impeller with a diameter of 95mm just to show that this method is simple and feasible.