device for noise reduction in centrifugal pumps

摘要

PCT No. PCT/EP95/00963 Sec. 371 Date Sep. 19, 1996 Sec. 102(e) Date Sep. 19, 1996 PCT Filed Mar. 15, 1995 PCT Pub. No. WO95/25895 PCT Pub. Date Sep. 28, 1995The object of the invention is a device for reducing the hydraulic operating noise in centrifugal pumps. To this end, the flow edges of a guide device downstream of an impeller are in oblique array. Here, the flow edges may be linear or nonlinear.