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公开(公告)号：US10330107B2
公开(公告)日：2019-06-25
申请号：US14889763
申请日：2014-04-29
发明人： Juergen Groeschel
IPC分类号： F04D25/06 , F04D29/42 , F04D29/043 , F16D1/08 , F04D13/02 , F04D13/06 , F16D3/77 , F04D29/60 , F04D29/044
摘要： A magnetic clutch pump arrangement is provided. The pump arrangement includes a pump housing containing an impeller shaft, a containment shell sealing an enclosed chamber within the housing, an impeller mounted on the impeller shaft, an inner rotor mounted on the other end of the impeller shaft, a drive motor, a drive shaft drivable by the drive motor, and an outer rotor outside of the enclosed chamber, mounted on the drive shaft, which magnetically interacts with the inner rotor. The external rotor has a hub with a through-bore having an interior surface which includes an axial groove extending parallel to the axis of rotation which cooperates with a feather key and a drive shaft key groove to rotationally secure the hub to the drive shaft. At least one radially circumferential first groove and at least one radially circumferential second groove in the hub interior surface receive tolerance rings.
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公开(公告)号：US10288073B2
公开(公告)日：2019-05-14
申请号：US14889662
申请日：2014-04-29
发明人： Patrick Drechsel , Joerg Engelbrecht , Juergen Groeschel , Christoph Jaeger , Markus Lay , Wolfram Wetzel
摘要： A pump arrangement, in particular a magnetic clutch pump arrangement, includes a pump housing containing an impeller shaft, a containment shell which seals an enclosed chamber within the inner chamber of the pump housing, an impeller mounted on one end of the impeller shaft, an inner rotor mounted on the other end of the impeller shaft, an outer rotor which is mounted on the drive shaft and co-operates with the inner rotor, and an auxiliary impeller mounted in the chamber adjacent to a domed base of the containment can. The auxiliary impeller is secured to the inner rotor and includes vanes and impeller channels for circulation of media.
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