Multi-stage horizontal centrifugal pump for conveying a fluid and a method for repairing the same
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United States of America Patent
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Jul 28, 2020
Grant Date -
Jul 6, 2017
app pub date -
Dec 16, 2016
filing date -
Dec 30, 2015
priority date (Note) -
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Abstract
A multi-stage horizontal centrifugal pump for conveying a fluid has a rotor including a rotatably arranged shaft and a plurality of impellers for conveying the fluid and a stator. All the impellers are arranged in a rotatably fixed manner on the shaft. The stator includes a plurality of stage casings, which are arranged consecutively one after another with respect to an axial direction determined by a central axis. The stator encompasses the rotor, and each stage casing is designed and arranged centrically with respect to the central axis. A plurality of wear rings is disposed between the rotor and the stator, each of which is fixed with respect to the stator, and surrounds the rotor with a clearance. At least one of the wear rings is designed eccentrically.
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