Pump housing of a magnetic and a non-magnetic material
First Claim
1. A pump device comprising:
- a pump housing comprising a wall surrounding an interior region and having an inlet and an outlet;
an impeller provided in the interior region of the pump housing;
wherein the wall of the pump housing has at least one first subregion and at least two further subregions in at least one plane perpendicular to the longitudinal extension of the pump housing and wherein the at least one first subregion and at least one further subregion alternate on a circumference of the pump housing;
wherein the at least one first subregion comprises at least 60% by weight, based on the total mass of the at least one first subregion, of at least one nonmagnetic material;
wherein the further subregions comprise at least 41% by weight, based on the total mass of the further subregions, of at least one ferromagnetic material;
wherein each further subregion is adjacent to at least one first subregion in the plane; and
wherein the at least one first subregion and the further subregions are connected to one another in a material-fitting manner.
1 Assignment
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Accused Products
Abstract
One aspect of the invention relates to a pump device comprising an impeller; a pump housing surrounding an interior region and having an inlet and an outlet. The impeller is provided in the interior region of the pump housing. The wall of the pump housing has at least one first subregion and at least two further subregions in at least one plane perpendicular to the longitudinal extension of the pump housing. The at least one first subregion comprises at least 60% by weight, based on the total mass of the at least one first subregion, of at least one nonmagnetic material. The further subregions comprise at least 41% by weight, based on the total mass of the further subregions, of at least one ferromagnetic material, wherein each further subregion is adjacent to at least one first subregion in the plane.
38 Citations
16 Claims
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1. A pump device comprising:
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a pump housing comprising a wall surrounding an interior region and having an inlet and an outlet; an impeller provided in the interior region of the pump housing; wherein the wall of the pump housing has at least one first subregion and at least two further subregions in at least one plane perpendicular to the longitudinal extension of the pump housing and wherein the at least one first subregion and at least one further subregion alternate on a circumference of the pump housing; wherein the at least one first subregion comprises at least 60% by weight, based on the total mass of the at least one first subregion, of at least one nonmagnetic material; wherein the further subregions comprise at least 41% by weight, based on the total mass of the further subregions, of at least one ferromagnetic material; wherein each further subregion is adjacent to at least one first subregion in the plane; and wherein the at least one first subregion and the further subregions are connected to one another in a material-fitting manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A pump housing obtained by a method comprising:
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providing a first material; providing a further material; forming a pump housing precursor; wherein at least one first subregion of the pump housing is formed by the first material; and wherein at least two further subregions of the pump housing are formed by the further material; wherein the at least one first subregion and at least one further subregion alternate on a circumference of the pump housing; and heating the pump housing precursor at a temperature of at least 300°
C. - View Dependent Claims (13)
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14. A housing comprising a wall surrounding an interior region, wherein the housing has an inlet and an outlet,
wherein the wall of the housing has at least one first subregion and at least one further subregion in at least one plane perpendicular to the longitudinal extension of the housing and wherein the at least one first subregion and the at least one further subregion alternate on a circumference of the pump housing; -
wherein the at least one first subregion comprises at least 60% by weight, based on the total mass of the at least one first subregion, of at least one nonmagnetic material, wherein the at least one further subregion comprises at least 41% by weight, based on the total mass of the at least one further subregion, of at least one ferromagnetic material, wherein the at least one further subregion in the plane and the at least one first subregion in the plane are adjacent and wherein the at least one first subregion and the at least one further subregion are connected to one another in a material-fitting manner. - View Dependent Claims (15, 16)
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Specification