Centrifugal pump, in particular circulation pump
A technology of centrifugal pumps and circulating pumps, which is applied in the field of circulating pumps and can solve problems such as degradation problems
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[0037] The following descriptions refer to, but are not limited to, circulator pumps and are generally applicable to any form of centrifugal pump. Figures 1 to 4 Different embodiment variants of the circulating pump are shown, and the figures show, in particular, a partial sectional view of a synchronous reluctance motor used for driving the circulating pump as an integral part of the pump housing. The basic construction is the same for all variants, ie the drive unit comprises a motor housing 1 with a mounted shaft 2 . Mounted on the shaft is a rotor 3 which runs in a stator bore of an outer stator 4 . Both the rotor 3 and the stator 4 consist of individual plate-like laminations 3 ′, 4 ′ respectively stacked in the axial direction to form a lamination pack. An air gap 5 is located between the rotor core 3 and the stator core 4 . According to the Vagati-Design of US Pat. No. 5,818,140, the plate-like laminae 3' of the rotor 3 are preferably provided with flux suppression...
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