PUMP UNIT FOR A CENTRIFUGAL PUMP AND CENTRIFUGAL PUMP
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Aug 15, 2024
filing date -
Aug 15, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
A pump unit includes a pump housing and a rotor in the pump housing. The pump unit contactless magnetic levitating and driving the rotor. The pump housing has a bottom part and a cover, the bottom part having a cylindrical cup to receive the rotor and a substantially ring-shaped first sealing surface for a sealing interaction with the cover. The cover has a substantially ring-shaped second sealing surface for a sealing interaction with the first sealing surface. One of the first and second sealing surfaces is a ribbed surface with a radial sealing rib, which extends in the circumferential direction along the entire sealing surface, while the other of the first and second sealing surfaces is a smooth surface.
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