Pump

Abstract

A radial pump for fluids has a central water inlet that leads to a rotating impeller that is enclosed by an annular pump chamber extending radially outside the impeller and from which leads a water outlet. An intermediate wall is arranged in the pump chamber which is of an encompassing design and divides the pump chamber into an annular inner region, lying radially on the inside, and an annular outer region, lying radially on the outside. These regions, at one end of the pump chamber that is remote from the impeller, merge into each other through openings in the intermediate wall, wherein the water outlet projects from the outer region.

1 . A pump for fluids, comprising:
 a central water inlet leading to a rotating impeller;   an annular pump chamber enclosing said rotating impeller, said annular pump chamber extending radially outside said rotating impeller and comprising
 an intermediate wall dividing said annular pump chamber into an annular inner region lying radially on an inside and an annular outer region lying radially on an outside, wherein said inner region and said outer region merge into each other via openings in said intermediate wall at an end of said annular pump chamber remote from said rotating impeller; and 
   a water outlet leading outwards from said annular pump chamber at said outer region.   
     
     
         2 . The pump of  claim 1 , wherein said intermediate wall is fastened on a side of said annular pump chamber in a direction of extent parallel to a rotational axis of said rotating impeller. 
     
     
         3 . The pump of  claim 1 , wherein said intermediate wall is fastened in an encompassing and continuous manner. 
     
     
         4 . The pump of  claim 1 , wherein said intermediate wall, at said end of said annular pump chamber, is distanced from an outside wall of said annular pump chamber to form an opening. 
     
     
         5 . The pump of  claim 4 , wherein said distance of said intermediate wall from said annular pump chamber wall is in an order of magnitude of a width of said annular pump chamber in a radial direction, wherein said entire intermediate wall has said distance from said outside wall of said annular pump chamber to form said opening. 
     
     
         6 . The pump of  claim 1 , wherein said rotating impeller is arranged proximate to a pump chamber bottom, and wherein said intermediate wall is arranged on said pump chamber bottom, or projects from said pump chamber bottom. 
     
     
         7 . The pump of  claim 1 , wherein said water outlet is arranged at an axial height of, or radially outside, said rotating impeller. 
     
     
         8 . The pump of  claim 1 , wherein a longitudinal extent of said inner region and of said outer region of said annular pump chamber in a direction parallel to a rotational axis of said rotating impeller are approximately of equal length. 
     
     
         9 . The pump of  claim 1 , wherein widths of said inner region and of said outer region of said annular pump chamber in a radial direction are unequal. 
     
     
         10 . The pump of  claim 9 , wherein said width of said outer region of said annular pump chamber in said radial direction is about 25% to 100% wider than said width of said inner region. 
     
     
         11 . The pump of  claim 1 , wherein a radial width of said inner region or of said outer region varies, along a direction of a rotational axis of said rotating impeller. 
     
     
         12 . The pump of  claim 1 , wherein said intermediate wall is heated, or has a heating device or forms a heating device. 
     
     
         13 . The pump of  claim 1 , wherein an outside wall around said outer region of said annular pump chamber is heated, or forms a heating device. 
     
     
         14 . The pump of  claim 13 , wherein said heating device forms, covers or occupies at least 50% of said outside wall. 
     
     
         15 . The pump of  claim 13 , wherein said heating device comprises a metal tube with at least one flat heating element on an outer side, wherein said metal tube forms said outside wall of said annular pump chamber, or is designed for contact with fluid being delivered by said pump. 
     
     
         16 . The pump of  claim 15 , wherein said heating element comprises a thick-film heating element. 
     
     
         17 . The pump of  claim 1 , wherein said annular pump chamber, in a transition region from said inner region to said outer region, comprises a rounding on an outer side. 
     
     
         18 . The pump of  claim 17 , wherein said transition region comprises a plurality of guide vanes for creating a swirl-like motion of said delivered fluid along said outside wall. 
     
     
         19 . The pump of  claim 18 , wherein the plurality of guide vanes is configured in a circumferential direction of said annular pump chamber.