Valve for regulating an exhaust gas flow of an internal combustion engine, heat exchanger for exhaust gas cooling, system having at least one valve and having at least one heat exchanger

Abstract

The invention relates to a valve ( 1, VT 1 ) for regulating an exhaust gas flow of an internal combustion engine having at least one closure element, having at least one actuator for actuating the closure element, and having at least one heat transfer duct ( 30, 36 ) for valve cooling, which heat transfer duct can be traversed by at least one first medium (M 1 ).

1 . A valve for regulating an exhaust gas flow of an internal combustion engine, having at least one closure element and at least one actuator for activating the closure element, wherein the valve has at least one heat transfer duct for cooling the valve, through which heat transfer duct at least one medium can flow. 
   
   
       2 . The valve as claimed in  claim 1 , wherein the heat transfer duct is embodied as an annular duct. 
   
   
       3 . The valve as claimed in  claim 1 , wherein the heat transfer duct has at least one wall pairing whose walls are embodied concentrically with respect to one another. 
   
   
       4 . The valve as claimed in  claim 1 , wherein the valve has at least a first opening for the inflow of the first medium and/or at least a second opening for the outflow of the first medium. 
   
   
       5 . The valve as claimed in  claim 1 , wherein the first medium is coolant, in particular a cooling fluid or air. 
   
   
       6 . The valve as claimed in  claim 1 , wherein the valve has at least one plate in which the heat transfer duct is arranged. 
   
   
       7 . The valve as claimed in  claim 6 , wherein the plate has reinforcing devices and/or cavities in order to save weight. 
   
   
       8 . The valve as claimed in  claim 6 , wherein the plate is connected to a valve housing in a materially joined and/or positively locking fashion. 
   
   
       9 . The valve as claimed in  claim 8 , wherein the plate is embodied in one piece with the valve housing. 
   
   
       10 . The valve as claimed in  claim 6 , wherein the plate has at least a first flange face for fastening purposes. 
   
   
       11 . The valve as claimed in  claim 1 , wherein at least one aperture for preventing a flow around the heat transfer duct is arranged in the heat transfer duct. 
   
   
       12 . The valve as claimed in  claim 1 , wherein the valve has at least one sealing element, in particular a flat seal. 
   
   
       13 . The heat exchanger for cooling an exhaust gas having at least one valve as claimed in  claim 1 . 
   
   
       14 . The heat exchanger as claimed in  claim 13 , wherein the heat exchanger has a first flow duct through which the first medium and/or a second medium can flow. 
   
   
       15 . The heat exchanger as claimed in  claim 13 , wherein the heat exchanger has a second flow duct through which a third medium can flow. 
   
   
       16 . The heat exchanger as claimed in  claim 14 , wherein the second medium is a cooling fluid or air and/or the third medium is exhaust gas. 
   
   
       17 . The heat exchanger as claimed in  claim 13 , wherein the heat exchanger has an inlet diffuser for the third medium. 
   
   
       18 . The heat exchanger as claimed in  claim 17 , wherein the inlet diffuser has a second flange face which can be connected to the first flange face of the valve. 
   
   
       19 . The heat exchanger as claimed in  claim 18 , wherein the sealing element for sealing the valve with respect to the inlet diffuser is arranged between the first flange face and the second flange face. 
   
   
       20 . The heat exchanger as claimed in  claim 13 , wherein the heat exchanger has at least one bypass valve to permit the third medium to bypass the heat exchanger. 
   
   
       21 . The heat exchanger as claimed in  claim 20 , wherein the at least one bypass valve can be activated by means of a second actuator. 
   
   
       22 . The heat exchanger as claimed in  claim 20 , wherein the at least one bypass valve and/or the valve are arranged in, or adjacent to, the inlet diffuser. 
   
   
       23 . A system having at least one valve and having at least one heat exchanger for cooling an exhaust gas having at least one valve as claimed in  claim 1 , having
 at least one internal combustion engine for a vehicle,   at least a first turbine of an exhaust gas turbosupercharger, wherein the valve is arranged on the inflow side of the heat exchanger, and the heat exchanger is arranged on the high pressure side of the first turbine.   
   
   
       24 . The system having at least one valve and at least one heat exchanger for cooling an exhaust gas having at least one valve as claimed in  claim 1 , having at least one internal combustion engine for a vehicle, at least a first turbine of an exhaust gas turbosupercharger, wherein the valve is arranged on the inflow side of the heat exchanger, and the heat exchanger is arranged on the low pressure side of the first turbine. 
   
   
       25 . The system as claimed in  claim 23 , wherein the system has at least a second heat exchanger for cooling charge air and/or the first turbine has a first compressor for supercharging charge air. 
   
   
       26 . The system as claimed in  claim 23 , wherein the system has at least a second turbine which drives at least a second compressor for supercharging charge air.