Device for guiding a gas stream

Abstract

A device for guiding a gas stream defines an inlet opening, an outlet opening and at least one angular offset which diverts the gas stream. The shell is assembled from a first shell part and a second shell part, wherein the first shell part defines the inlet opening and the outlet opening and has at least one connecting structure for the gas-tight connection of the device to a further gas-guiding component, and wherein the second shell part is configured to enclose the inlet opening and the outlet opening of the first shell part.

1 - 15 . (canceled) 
     
     
         16 . An apparatus for conducting a gas flow, comprising a shell which defines an inlet opening, an outlet opening and at least one bend deflecting the gas flow,
 wherein the shell is composed of a first shell part and a second shell part, with the first shell part defining the inlet opening and the outlet opening and having at least one connection structure for the gas-tight connection of the apparatus to a further gas conducting component, and with the second shell part being configured for enclosing the inlet opening and the outlet opening of the first shell part.   
     
     
         17 . The apparatus in accordance with  claim 16 , wherein the apparatus is adapted to conduct an exhaust gas flow of an internal combustion engine. 
     
     
         18 . The apparatus in accordance with  claim 16 , wherein the connection structure is configured in one piece with the first shell part. 
     
     
         19 . The apparatus in accordance with  claim 18 , wherein the connection structure is molded to the first shell part. 
     
     
         20 . The apparatus in accordance with  claim 16 , wherein the connection structure comprises a flange. 
     
     
         21 . The apparatus in accordance with  claim 16 , wherein the connection structure comprises a clamping flange. 
     
     
         22 . The apparatus in accordance with  claim 16 , wherein the connection structure comprises a pipe stub extending in parallel with the flow direction of the gas flow. 
     
     
         23 . The apparatus in accordance with  claim 22 , wherein the pipe stub expands in a direction facing outwardly with respect to the shell. 
     
     
         24 . The apparatus in accordance with  claim 22 , wherein the pipe stub is formed as a passage in a deep-drawing process. 
     
     
         25 . The apparatus in accordance with  claim 24 , wherein the pipe stub has a bent portion at the end side as the expansion. 
     
     
         26 . The apparatus in accordance with  claim 16 , wherein the first shell part is plate-shaped and the second shell part is hood-shaped. 
     
     
         27 . The apparatus in accordance with  claim 16 , wherein the shell defines two consecutive bends which each preferably deflect the gas flow by 90°. 
     
     
         28 . The apparatus in accordance with  claim 27 , wherein the two bends act to deflect in the same sense. 
     
     
         29 . An exhaust gas system, comprising an apparatus having a shell which defines an inlet opening, an outlet opening and at least one bend deflecting the gas flow,
 wherein the shell is composed of a first shell part and a second shell part, with the first shell part defining the inlet opening and the outlet opening and having at least one connection structure for the gas-tight connection of the apparatus to a further gas conducting component, and with the second shell part being configured for enclosing the inlet opening and the outlet opening of the first shell part.   
     
     
         30 . The exhaust gas system in accordance with  claim 29 , wherein the exhaust gas system is adapted to conduct an exhaust gas flow of an internal combustion engine.