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US 12,510,092 B2Granted
Pressure bushing for a fluid pump and a pump including the pressure bushing
AssigneeBleckmann GmbH & Co. KG
InventorsFrederic Hackl, Hubert Unterberger, Mladen Gojkic, Michael Ullrich
Life of this patent
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Abstract
A pressure bushing for a centrifugal pump for fluid, the pressure bushing having a substantially cylindrical shape, and comprising at least: a bottom portion, an outer side portion, and an inner side portion opposing the outer side portion and having an inner circumference surface, wherein the inner circumference surface of the inner side portion tapers at least partially towards the bottom portion of the pressure bushing.
Claims11
A pump, in particular for domestic appliances such as dishwashers, comprising:
- a pumping chamber including a central axial fluid inlet and a tangential fluid outlet,
- an impeller for conveying fluid, wherein the impeller rotates within the pumping chamber,
- a motor for driving the impeller, and
- a pressure bushing for conveying fluid to the impeller, the pressure bushing having a substantially cylindrical shape, and comprising at least:
- a bottom portion,
- an outer side portion, and
- an inner side portion opposing the outer side portion and having an inner circumference surface,
- wherein the inner circumference surface of the inner side portion tapers at least partially towards the bottom portion of the pressure bushing;
- wherein the inner circumference surface of the inner side portion tapers towards the bottom portion by the method of tensile triangles and by the resulting edges of the tensile triangles being rounded.
6 more elements
Dependencies are inferred from the claim text.