Invention Grant
- Patent Title: Multi-stage centrifugal pump assembly (shaft)
- Patent Title (中): 多级离心泵总成（轴）
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Application No.: US12720792Application Date: 2010-03-10
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Publication No.: US08376701B2Publication Date: 2013-02-19
- Inventor: Karl-Henrik Svendsen
- Applicant: Karl-Henrik Svendsen
- Applicant Address: DK Bjerringbro
- Assignee: Grundfos Management a/s
- Current Assignee: Grundfos Management a/s
- Current Assignee Address: DK Bjerringbro
- Agency: Panitch Schwarze Belisario & Nadel LLP
- Priority: EP09003441 20090310
- Main IPC: F04D17/12
- IPC: F04D17/12 ; F04D29/044
Abstract:
With the multi-stage centrifugal pump assembly, the connection between the motor shaft (7) and the pump shaft (9) is effected by way of a thread (26, 27), which joins the fits (31, 34) lying therebehind, between a pocket hole bore (24) in the pump-side end of the motor shaft (7) and the motor-side end of the pump shaft (9). Thereby, a transition fit (32) is provided in the region of the bearing (11), and a press fit 34 in the free region therebehind.
Public/Granted literature
- US20100232950A1 MULTI-STAGE CENTRIFUGAL PUMP ASSEMBLY (SHAFT) Public/Granted day:2010-09-16
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