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US 2023/0258187 A1Published application
Centrifugal Pump for Conveying Media Containing Solids
AssigneeKSB SE & Co. KGaA
InventorMarkus PITTROFF
Life of this patent
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Abstract
A centrifugal pump for conveying media containing solids includes at least one arrangement for reducing a backflow from a first chamber into a second chamber. The at least one arrangement includes at least one non-rotating element that cooperates with at least one rotating counter element. At least one of the at least one non-rotating element and the at least one rotating element I coated at least in parts by a tetrahedral hydrogen-free amorphous carbon layer.
Claims21
1-14. (canceled)
A centrifugal pump for conveying solids-containing media, comprising:
- at least one arrangement configured to reduce backflow from a first space into a second space, the arrangement including at least one nonrotating element that cooperates with at least one rotating counterpart element to minimize backflow,
- wherein the at least one nonrotating element at least partly has a layer of carbon.
Dependencies are inferred from the claim text.