Heat exchanger

Abstract

A heat exchanger having a first flow channel, through which a first fluid can flow, and having a second flow channel, through which a second fluid can flow, whereby the first flow channel has a first section, a second section, and a redirection region, whereby the first section is in fluid communication with the second section via the redirection region and the second fluid can flow around the first section, the second section, and the redirection region, and whereby the first section and/or the second section of the first flow channel are each formed by a plurality of tubes.

What is claimed is: 
     
         1 . A heat exchanger comprising:
 a first flow channel through which a first fluid flows; and   a second flow channel through which a second fluid flows,   wherein the first flow channel has a first section, a second section, and a redirection region,   wherein the first section is in fluid communication with the second section via the redirection region and the second fluid flows around the first section, the second section, and the redirection region, and   wherein the first section and/or the second section of the first flow channel are each formed by a plurality of tubes.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein the heat exchanger has a housing, which is formed as a single part or as multiple parts with at least one first housing part and a second housing part. 
     
     
         3 . The heat exchanger according to  claim 2 , wherein the housing forms at least partially the second flow channel. 
     
     
         4 . The heat exchanger according to  claim 2 , wherein the first housing part substantially surrounds the first and second section and the second housing part substantially surrounds the redirection region. 
     
     
         5 . The heat exchanger according to  claim 2 , wherein the tube bottom with a cover forms a collecting tank, and wherein an inner volume of the collecting tank forms the redirection region. 
     
     
         6 . The heat exchanger according to  claim 2 , wherein a flow section of the second flow channel is formed between an outer wall bounding the redirection region and an inner wall of the housing and/or a wall of the first flow channel. 
     
     
         7 . The heat exchanger according to  claim 6 , wherein turbulence inserts and/or a cross-section-narrowing component are arranged along the flow section on an outer wall of the redirection region and/or on an inner wall of the housing. 
     
     
         8 . The heat exchanger according to  claim 2 , wherein the housing has a first fluid connection and a second fluid connection, over which the second fluid is supplied to the housing and is removed from the housing. 
     
     
         9 . The heat exchanger according to  claim 2 , wherein the first section and the second section and/or the redirection region of the first flow channel is integrated in the housing, which forms at least partially the second flow channel such that the second flow channel is sealed fluid-tight against the first flow channel and/or the redirection region and the environment. 
     
     
         10 . The heat exchanger according to  claim 1 , wherein all tubes are mounted at least in a same end region in a tube bottom. 
     
     
         11 . The heat exchanger according to  claim 1 , wherein the fluid supply and fluid removal of the first flow channel are arranged at a same end region of the heat exchanger. 
     
     
         12 . The heat exchanger according to  claim 1 , wherein the first fluid is a gas and the second fluid is a coolant.