公开(公告)号：US20180216468A1

公开(公告)日：2018-08-02

申请号：US15748825

申请日：2015-10-14

Applicant: GARDNER DENVER NASH LLC

Inventor： Wilson Fabián GAIBOR ,  Giovanni ZAZA ,  Emanuele ROTTA

IPC: F01D5/14 ,  F04C19/00 ,  F04D17/18

CPC classification number: F01D5/141 ,  F04C19/00 ,  F04C19/008 ,  F04C23/001 ,  F04C25/02 ,  F04C2240/20 ,  F04C2250/20 ,  F04C2250/201 ,  F04D17/18 ,  F05B2250/184 ,  F05B2250/71

Abstract: A liquid ring pump includes a stationary housing that defines an inner space, and a drive shaft rotatably mounted within the stationary housing. The drive shaft defines a rotational axis. An impeller includes a plurality of blades extending radially outward with respect to the rotational axis, and each blade includes a root and a tip, wherein a continuous curve extends from the tip of each blade through the root of the blade and intersects with the rotational axis.