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US 11,898,570 B2Granted
Pump assembly comprising a lubrication—and cooling system
AssigneeKSB SE & Co. KGaA
InventorsThomas Pensler, Christoph Jaeger, Daniel Ziegs, Hermann Bonitz
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Abstract
A pump assembly for delivering a medium via a flow chamber (13) defined by a hydraulic housing and a housing cover, includes a pump shaft rotatably drivable about an axis of rotation, an impeller fixed to one end of the pump shaft inside the flow chamber, a bearing carrier. The pump assembly further includes a lubrication and cooling system with oil recirculation in the bearing carrier.
Claims17
A pump arrangement for conveying a medium, comprising:
- a hydraulics housing;
- a housing cover configured to cooperate with the hydraulics housing to define a flow chamber;
- a pump shaft rotatable about an axis of rotation;
- an impeller located in the flow chamber and arranged on a first end of the pump shaft;
- a bearing carrier;
- a lubrication and cooling system in the bearing carrier configured to provide oil circulation;
- and
- a filler body surrounding at least a second portion of the pump shaft is provided in the interior of the bearing carrier, wherein
- a first annular space is formed between the filler body and the pump shaft, and
- a second annular space is formed between the filler body and an outer wall of the bearing carrier.
7 more elements
Dependencies are inferred from the claim text.