US 12,228,137 B2
Manufacture of an impeller in a hybrid process
Tammuz Nobel, Frankenthal (DE)
Assigned to KSB SE & Co. KGaA, Frankenthal (DE)
Appl. No. 18/281,035
Filed by KSB SE & Co. KGaA, Frankenthal (DE)
PCT Filed Mar. 4, 2022, PCT No. PCT/EP2022/055537
§ 371(c)(1), (2) Date Sep. 8, 2023,
PCT Pub. No. WO2022/189286, PCT Pub. Date Sep. 15, 2022.
Claims priority of application No. 10 2021 105 610.1 (DE), filed on Mar. 9, 2021.
Prior Publication US 2024/0141914 A1, May 2, 2024
Int. Cl. F04D 29/22 (2006.01); B33Y 80/00 (2015.01); F04D 1/00 (2006.01); F04D 1/06 (2006.01); F04D 17/00 (2006.01); F04D 29/62 (2006.01)
CPC F04D 29/22 (2013.01) [B33Y 80/00 (2014.12); F04D 1/00 (2013.01); F04D 1/06 (2013.01); F04D 17/00 (2013.01); F04D 29/62 (2013.01); F05D 2230/31 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An apparatus for a centrifugal pump, comprising:
an impeller having a rear shroud on which blades are arranged, wherein
the impeller has a hybrid component structure including at least one generative component and at least one conventional component, at least one of the generative component and the conventional component being subdivided into at least two segments,
a connecting joint is a connecting element between two of the segments and one of the blades, and
the connecting joint connects the segments and the blade with a small gap, that measures at most 10 μm, between the segments and the blade in a working state of the centrifugal pump.