Device for Controlling an Exhaust Gas Stream

Abstract

The invention relates to a device for controlling an exhaust gas stream, in particular of an internal combustion engine in a passenger vehicle. Said device comprises a housing that can be traversed by exhaust gas ( 1 ) and a first displaceable actuating element ( 5 ) that is supported on the housing ( 1 ). The exhaust gas stream can be selectively guided into a first exhaust gas conduit ( 3 ) and/or a second exhaust gas conduit ( 4 ) by the displacement of the first actuating element ( 5 ). A second actuating element ( 15 ) is provided on the housing ( 1 ), said actuating element controlling a variable of thee exhaust gas stream.

1 . A device for controlling an exhaust gas stream, especially from an internal combustion engine of a passenger motor vehicle, comprising a housing through which the exhaust gas can flow, and a moveable first actuating element supported on the housing, it being possible, through an adjustment of the first actuating element to lead the exhaust gas stream selectively into a first exhaust gas duct and/or a second exhaust gas duct, wherein a second actuating element for regulating a magnitude of the exhaust gas stream is arranged on the housing. 
   
   
       2 . The device as claimed in  claim 1 , wherein the first of the exhaust gas ducts is connected to an exhaust gas cooler and that the second of the exhaust gas ducts is connected to a bypass line for bypassing the exhaust gas cooler. 
   
   
       3 . The device as claimed in  claim 2 , wherein the bypass line is arranged in a common housing together with the exhaust gas cooler. 
   
   
       4 . The device as claimed in  claim 1 , wherein the first actuating element can be driven by a rotatable shaft supported on the housing. 
   
   
       5 . The device as claimed in  claim 4 , wherein the rotatable shaft can be driven by an actuator preferably supported on the housing. 
   
   
       6 . The device as claimed in  claim 1 , wherein a valve seat of the second actuating element is provided on the housing. 
   
   
       7 . The device as claimed in  claim 6 , wherein the second actuating element comprises a valve disk which corresponds to the valve seat and is connected via a valve rod to an actuator. 
   
   
       8 . The device as claimed in  claim 7 , wherein a sub-assembly of the second actuating element comprising the valve rod and the valve seat can be detachably connected to the housing. 
   
   
       9 . The device as claimed in  claim 1 , wherein in the area of the first and the second exhaust gas ducts the housing has a substantially rectangular cross section enclosing both ducts. 
   
   
       10 . The device as claimed in  claim 1 , wherein a third exhaust gas duct is provided on the housing, which forms a feed or a discharge for the entire exhaust gas stream of the first and second exhaust gas ducts. 
   
   
       11 . The device as claimed in  claim 10 , wherein third exhaust gas duct has a substantially circular cross section. 
   
   
       12 . The device as claimed in  claim 10 , wherein the third exhaust gas duct, in an adjoining area of the housing, has a different direction to the first and second exhaust gas ducts, the directions of the first and second exhaust gas ducts, in particular, being identical and the direction of the third exhaust gas duct running at an angle of approximately 90° to this. 
   
   
       13 . The device as claimed in  claim 10 , wherein starting from the third exhaust gas duct, the second actuating element is first arranged in the housing, followed by the first actuating element and then the first and the second exhaust gas ducts. 
   
   
       14 . The device as claimed in  claim 1 , wherein an actuator of the first actuating element and/or an actuator of the second actuating element is/are embodied as a pressure capsule.