US 2014/0193247 A1Published application

Impeller pump

AssigneeE.G.O. Elektro-Geraetebau GmbH

InventorsJoern Friedrichs, Tobias Albert, Volker Block

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Abstract

An impeller pump has a pump casing including a pump chamber and an inlet and an outlet thereon and an impeller therein, and including a heating device for heating the conveyed medium, which heating device forms an external wall of the pump chamber. The pump chamber extends annularly around the impeller and away from the pump chamber floor, wherein the outlet leads off on a region of the pump chamber which, viewed in the axial direction of the impeller pump, is pointing away from the pump chamber floor. The cross-sectional area of the pump chamber decreases in the axial direction of the longitudinal center axis of the impeller pump away from the pump chamber floor toward the outlet by virtue of an obliquely inwardly inclined external wall.

Claims16

Dependent claims

An impeller pump for the conveyance of a medium, comprising:

a pump casing comprising a pump chamber and an inlet and an outlet thereon;
an impeller, disposed in said pump chamber, behind said inlet and before said outlet within a conveyance path;
and
a heating device for heating said conveyed medium, said heating device forming at least part of an external wall of said pump chamber,
wherein said impeller is arranged on a pump chamber floor and, starting therefrom, said pump chamber extends annularly around said impeller and away from said pump chamber floor, and wherein said outlet leads off on a region of said pump chamber which, viewed in an axial direction of the impeller pump, is pointing away from said pump chamber floor, and
wherein a cross-sectional area of said pump chamber decreases in said axial direction of a longitudinal center axis of said impeller pump away from said pump chamber floor and toward said outlet.

3 more elements

Dependencies are inferred from the claim text.