Heat exchanger comprising a supply channel

Abstract

A heat exchanger for a motor vehicle, said heat exchanger including an outer casing in which heat exchanger tubes are arranged and a medium can be guided into the casing on the front side and can be evacuated on the opposite side, and a second medium can be guided to the casing via the lateral side, wherein a channel extends along at least part of the periphery on the outer side of the casing, the second medium can be guided by a supply line into the peripheral channel and passes the channel into the inner chamber of the casing via the openings in the casing.

1 .- 9 . (canceled) 
     
     
         10 . A heat exchanger for a motor vehicle, comprising
 an outer sheath having opposing ends;   heat exchanger tubes arranged in the outer sheath, wherein a medium is introducible into the sheath at one of the opposing ends of the outer sheath and is dischargeable at another one of the opposing ends;   a flange arranged on the one end of the outer sheath so as to engage around an outer circumference of the one end of the outer sheath, said flange having a radially outwardly oriented bulge forming a channel between the outer sheath and the flange, said channel being in fluid communication with an inside of the outer sheath via openings arranged on the one end of the outer sheath;   a supply line fluidly connected with the channel, for conducting a first medium into the circumferential channel; and   an exhaust gas line formed on the flange for conducting a second medium into the outer sheath at the one end of the outer sheath.   
     
     
         11 . The heat exchanger of  claim 10 , wherein the openings are spaced apart holes, and are arranged along an inner circumference of the sheath in a region of the channel. 
     
     
         12 . The heat exchanger of  claim 11 , wherein the holes have different opening cross sections. 
     
     
         13 . The heat exchanger of  claim 12 , wherein the opening cross sections increase between spaced-apart holes in a direction from the supply line. 
     
     
         14 . The heat exchanger of claim  1 , wherein a cross sectional surface of the channel is configured variable. 
     
     
         15 . The heat exchanger of  claim 14  wherein the cross sectional surface decreases from the supply line in flow direction of the channel. 
     
     
         16 . The heat exchanger of  claim 10 , further comprising a guide plate arranged in the outer sheath in flow direction upstream of the openings, said guide plate being traversed by the heat exchanger tubes. 
     
     
         17 . The heat exchanger of  claim 16 , wherein the guide plate has a central recess for passage of the first medium. 
     
     
         18 . The heat exchanger of  claim 10 , further comprising a front plate arranged in flow direction of the second medium upstream of the openings, said front plate being traversed by the heat exchanger tubes for passage of the second medium. 
     
     
         19 . The heat exchanger of  claim 10 , wherein the flange and the outer sheath are connected by a materially bonding connection, in particular a soldered connection, preferably a brazing solder joint. 
     
     
         20 . The heat exchanger of  claim 19 , wherein the materially bonding connection is formed between the flange and an outside of the outer sheath. 
     
     
         21 . The heat exchanger of  claim 10 , wherein the channel is formed by two spaced-apart circumferential contact surfaces between the flange and the an outside of the sheath, said outer contact surfaces being thermally joined to each other 
     
     
         22 . The heat exchanger of  claim 10 , wherein the contact surfaces are joined in a fluid tight manner.