公开(公告)号：US10823186B2

公开(公告)日：2020-11-03

申请号：US16027509

申请日：2018-07-05

申请人： GRUNDFOS HOLDING A/S

发明人： Brian Lundsted Poulsen ,  Anders Bøge Jensen

IPC分类号： F04D29/046 ,  F16J15/00 ,  F04D29/62 ,  F04D29/047 ,  F16C33/76 ,  F04D29/12 ,  F04D1/00 ,  F16C35/02

摘要： A pump bearing retainer (1), for a wet-running pump, includes a radially inner section (3) including an inner section surface (9) for a press-fit contact with an essentially cylinder-shaped radial outer surface (29) of a pump bearing (13). A radially outer section (7) includes an annular or essentially conical-shaped outer section surface (17) with a cone angle (θ1) equal to or larger than 45°. An intermediate section (5) extends from the inner section (3) to the outer section (7). The intermediate section (5) includes an essentially conical-shaped intermediate section surface (15) with a cone angle (θ2) smaller than 45°. A longitudinal cross-section area (A) of the inner section (3) is smaller than a longitudinal cross-section area (B) of the intermediate section (5).