US 12,276,281 B2
Multiple-pump device
Maron Badt, Bietigheim (DE); Vojko Blazic, Volcja Draga (SI); Ales Cigoj, Rence (SI); Eugen Makarow, Ludwigsburg (DE); Alexander Spies, Marbach (DE); and Benjamin Weimann, Radolfzell (DE)
Assigned to Mahle International GmbH, (DE)
Filed by MAHLE International GmbH, Troy (DE)
Filed on Oct. 14, 2022, as Appl. No. 17/966,097.
Claims priority of application No. 10 2021 211 693.0 (DE), filed on Oct. 15, 2021.
Prior Publication US 2023/0121945 A1, Apr. 20, 2023
Int. Cl. F04D 13/06 (2006.01); F04D 1/00 (2006.01); F04D 13/02 (2006.01); F04D 13/14 (2006.01); F04D 25/16 (2006.01); F04D 29/043 (2006.01); F04D 29/42 (2006.01); F04D 29/58 (2006.01)
CPC F04D 13/06 (2013.01) [F04D 1/00 (2013.01); F04D 13/025 (2013.01); F04D 13/026 (2013.01); F04D 13/0606 (2013.01); F04D 13/0633 (2013.01); F04D 13/064 (2013.01); F04D 13/0646 (2013.01); F04D 13/14 (2013.01); F04D 25/16 (2013.01); F04D 29/043 (2013.01); F04D 29/426 (2013.01); F04D 29/5806 (2013.01); F04D 29/5813 (2013.01); F04D 29/588 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multiple-pump device, comprising
a housing, the housing including at least a first drive device for driving a first drive shaft with a first impeller and a second drive device for driving a second drive shaft with a second impeller;
a bearing shield, the bearing shield penetrated by the first drive shaft and the second drive shaft and separating a wet region with the first impeller and the second impeller, and a dry region with the first drive device and the second drive device;
power electronics arranged in the dry region and connected with the bearing shield to transfer heat;
a spiral housing;
wherein at least one drive device of the first drive device and the second drive device includes an electric motor having a rotor and a stator;
the stator includes at least one holding contour projecting axially from the stator, via which the power electronics are secured;
wherein the housing is connected to the spiral housing via a seal; and
wherein the spiral housing includes a first spiral channel corresponding to the first impeller and a second spiral channel corresponding to the second impeller.