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公开(公告)号：US20150171698A1
公开(公告)日：2015-06-18
申请号：US14390487
申请日：2013-04-03
Applicant: KSB Aktiengesellschaft
Inventor： Sven Urschel
CPC classification number: H02K5/132 , F04D13/08 , H02K5/12 , H02K5/1677 , H02K7/09 , H02K2201/03 , H02K2213/03
Abstract: The present invention relates to a synchronous reluctance motor for an underwater pump having a stator and a rotor which comprises a fluid barrier section for fanning one or more magnetic pole pairs, wherein the airgap between the rotor (12) and the stator (II) is at least partially filled with a ferrofluid (20). A further partial aspect of the invention relates to an underwater pump with such a synchronous reluctance motor for driving the pump.
Abstract translation: 本发明涉及具有定子和转子的水下泵的同步磁阻电动机，其包括用于扇形一个或多个磁极对的流体阻挡部分，其中转子（12）和定子（II）之间的气隙是 至少部分地填充有铁磁流体（20）。 本发明的另一部分方面涉及一种具有用于驱动泵的同步磁阻电动机的水下泵。
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2.发明授权公开(公告)号：US09685845B2
公开(公告)日：2017-06-20
申请号：US14211316
申请日：2014-03-14
Applicant: KSB Aktiengesellschaft
Inventor： Gerhard Huth , Sven Urschel , Ralf Fischer
CPC classification number: H02K15/03 , H02K1/278 , H02K17/165 , H02K21/46 , Y10T29/49012
Abstract: A rotor (11) with a squirrel cage and permanent magnets (19) mounted on and distributed around the circumference of the rotor, including a core stack extending over the entire rotor region with longitudinally continuous rotor slots extending over the length of the core stack. The squirrel cage is constructed with cage bars disposed, and preferably cast, in the rotor slots; short circuit rings connect the cage bars at both end faces of the core; and the radius of the rotor region is reduced by at least the radial thickness of the magnets. The radius of rotor (11) is reduced over the entire length between short circuit rings (17) such that the radial height of cage bars (15, 29) or cage webs (27) connected thereto is reduced. Also an electric motor or a radial pump having such a rotor, and methods of producing or operating such devices.
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