Noise-Optimized Centrifugal Pump
US-2024309887-A1 · Sep 19, 2024 · US
US12510098B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12510098-B2 |
| Application number | US-202118267511-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 16, 2021 |
| Priority date | Dec 16, 2020 |
| Publication date | Dec 30, 2025 |
| Grant date | Dec 30, 2025 |
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A pump assembly such as a centrifugal pump assembly includes a lantern arranged between a pump housing and a motor housing. Surface enlarging elements are arranged at the lantern for increasing heat dissipation and/or enhancing cooling air flow.
Opening claim text (preview).
The invention claimed is: 1 . A pump arrangement, comprising: a pump casing; a fan impeller; a motor casing; and a lantern having a first part that contacts the pump casing and a second part that contacts the motor casing; wherein the lantern has heat dissipating surface-enlarging elements that extend farther along a radially-outward direction of the lantern than the first and second parts, wherein the motor casing has cooling ribs which cooperate with the heat dissipating surface-enlarging elements of the lantern in such a way that: i) both the cooling ribs and the heat dissipating surface-enlarging elements each comprise portions that extend at least partially in the same direction, and ii) a stream of cooling air generated by the fan impeller flows successively over the cooling ribs of the motor casing and the heat dissipating surface-enlarging elements of the lantern. 2 . The pump arrangement as claimed in claim 1 , wherein a lantern internal diameter remains constant and a lantern external diameter is widened over an axial length of a base body of the lantern. 3 . The pump arrangement as claimed in claim 2 , wherein the lantern external diameter is wider on a pump side of the lantern than on a motor side of the lantern. 4 . The pump arrangement as claimed in claim 1 , wherein the lantern is rotationally symmetric. 5 . The pump arrangement as claimed in claim 1 , wherein the heat dissipating surface-enlarging elements are arranged on a base body of the lantern. 6 . The pump arrangement as claimed in claim 1 , wherein the thermal conductivity of the heat dissipating surface-enlarging elements is more than 150 W/m-K. 7 . The pump arrangement as claimed in claim 1 , wherein the thermal conductivity of a base body of the lantern is less than 40 W/m-K. 8 . The pump arrangement as claimed in claim 5 , wherein the heat dissipating surface-enlarging elements are guide elements configured to: i) guide a stream of cooling air over the pump housing, and ii) reduce flow resistance by guiding the stream of cooling air in such a way that it does not strike the pump casing at right angles. 9 . The pump arrangement as claimed in claim 8 , wherein the heat dissipating surface-enlarging elements are oriented axially. 10 . The pump arrangement as claimed in claim 8 , wherein the heat dissipating surface-enlarging elements are oriented radially. 11 . The pump arrangement as claimed in claim 9 , wherein the heat dissipating surface-enlarging elements have at least one of a plate shape, a trapezoidal shape, a curved shape, a triangular shape and an annular shape. 12 . The pump arrangement as claimed in claim 10 , wherein the heat dissipating surface-enlarging elements have at least one of a plate shape, a trapezoidal shape, a curved shape, a triangular shape and an annular shape.
by increasing the heat transfer surface · CPC title
heat insulation or conduction · CPC title
the pump being electrically driven · CPC title
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