Heat exchanger, in particular an intercooler, comprising a reinforced pipe base

Abstract

A heat exchanger is disclosed, comprising a block having pipes and ribs and at least one pipe base provided with receiving openings, wherein the pipes have pipe ends, which can be held in the receiving openings and form pipe/base connections with the pipe base, the connections being at least partially reinforced by an additional sheet metal part located on the side of the pipe base facing the block, wherein the sheet metal part has insertion openings for the pipe ends.

1 . A heat exchanger comprising an additional sheet metal part and a block having pipes, ribs, and at least one pipe base having a side facing the block, the at least one pipe base provided with receiving openings, wherein the pipes have pipe ends which can be held in the receiving openings and with the pipe base form pipe/base connections that are reinforced at least in part by the additional sheet metal part, wherein the sheet metal part has insertion openings for the pipe ends and is located on the side of the pipe base facing the block. 
   
   
       2 . The heat exchanger according to  claim 1 , wherein the sheet metal part has a positive connection to the pipe ends and the pipe base. 
   
   
       3 . The heat exchanger according to  claim 1 , wherein the sheet metal part is matched to the contour of the pipe base. 
   
   
       4 . The heat exchanger according to  claim 1 , wherein the pipes are flat pipes. 
   
   
       5 . The heat exchanger according to  claim 1 , wherein the receiving openings of the pipe base are through-holes. 
   
   
       6 . The heat exchanger according to  claim 5 , wherein the through-holes are formed directed away from the block. 
   
   
       7 . The heat exchanger according to  claim 1 , wherein the through-openings of the sheet metal part are through-holes. 
   
   
       8 . The heat exchanger according to  claim 7 , wherein the through-holes of the sheet metal part are formed directed toward the block. 
   
   
       9 . The heat exchanger according to  claim 1 , wherein the sheet metal part is located in the region of an outer pipe. 
   
   
       10 . The heat exchanger according to  claim 1 , wherein the sheet metal part and the pipe base each have a wall thickness, and the wall thickness of the sheet metal part is less than or equal to the wall thickness of the pipe base. 
   
   
       11 . The heat exchanger according to  claim 1 , wherein the pipe base is part of an open box section having longitudinal sides and the additional sheet metal part encompasses at least a portion of the pipe base and adjoining regions of the longitudinal sides. 
   
   
       12 . The heat exchanger according to  claim 11 , wherein the pipe base is domed toward the block side, and has regions between the through-holes that have a convex shape in the longitudinal cross section of the box section and a crest and a crest line, respectively, and the additional sheet metal part forms a contact zone with the pipe base in the region of the crest and of the crest line, respectively. 
   
   
       13 . The heat exchanger according to  claim 12 , wherein the sheet metal part has binding bands in the region of the crest lines. 
   
   
       14 . The heat exchanger according to  claim 12 , wherein the additional sheet metal part is positively connected to the pipe base in the region of the contact zone. 
   
   
       15 . The heat exchanger according to  claim 11 , wherein arranged in the open box section are a separating wall, and at least in the region of the separating wall, the additional sheet metal part. 
   
   
       16 . The heat exchanger according to  claim 1 , wherein said heat exchanger is an intercooler, wherein the pipes are exposed to flowing charge air of an internal combustion engine. 
   
   
       17 . The heat exchanger of  claim 2 , wherein the sheet metal part is soldered to the pipe ends and the pipe base. 
   
   
       18 . The heat exchanger according to  claim 17 , wherein the sheet metal part is matched to the contour of the pipe base. 
   
   
       19 . The heat exchanger according to  claim 17 , wherein the sheet metal part and the pipe base each have a wall thickness, and the wall thickness of the sheet metal part is less than or equal to the wall thickness of the pipe base.