Sealing system

Abstract

A sealing system, in particular for sealing multi-part exhaust gas pipes for an internal combustion engine, with at least a first flange part ( 9 ) and a second flange part ( 11 ) that guide a heat flow ( 5 ) and that border between them a receiving space ( 33 ) for at least one sealing element ( 29, 31 ), is characterized in that the flange parts ( 9, 11 ) that are adjacent to one another in each case form a ring flange ( 13 ) that extends outward, facing away from the heat flow ( 5 ) and running transversely to the latter, in which the faces ( 15, 17 ) of the flange parts ( 9, 11 ) that are adjacent to one another form a chamber to some extent of the receiving space ( 33 ) of the sealing element ( 29, 31 ).

1 . Sealing system, in particular for sealing multi-part exhaust gas pipes for an internal combustion engine, with at least a first flange part ( 9 ) and a second flange part ( 11 ) that guide a heat flow ( 5 ) and that border between them a receiving space ( 33 ) for at least one sealing element ( 29 ,  31 ), characterized in that the flange parts ( 9 ,  11 ) that are adjacent to one another in each case form a ring flange ( 13 ) that extends outward, facing away from the heat flow ( 5 ) and running transversely to the latter, in which the faces ( 15 ,  17 ) of the flange parts ( 9 ,  11 ) that are adjacent to one another form a chamber to some extent of the receiving space ( 33 ) of the sealing element ( 29 ,  31 ). 
   
   
       2 . The sealing system according to  claim 1 , wherein the receiving space ( 33 ) is located in a radial outer end area of the flange parts ( 9 ,  11 ) relative to the heat flow ( 5 ). 
   
   
       3 . The sealing system according to  claim 2 , wherein the receiving space ( 33 ) that is open radially outward is bordered by a ring-shaped recess ( 41 ), which is created in at least one of the flange parts ( 9 ) of its peripheral edge ( 43 ) and is open on the face ( 15 ), as well as by the adjacent face ( 17 ) of the other flange part ( 11 ). 
   
   
       4 . The sealing system according to  claim 2 , wherein the receiving space ( 33 ) that is open radially outward is bordered axially by the adjacent faces ( 15 ,  17 ) of the flange parts ( 9 ,  11 ) and radially inward by an insertion element ( 35 ,  39 ) that is located between the flange parts ( 9 ,  11 ). 
   
   
       5 . The sealing system according to  claim 4 , wherein an insertion element ( 39 ) that consists of a material of low heat conductivity is provided. 
   
   
       6 . The sealing system according to  claim 1 , wherein the receiving space ( 33 ) is formed by at least one flange part ( 11 ), which has an open, axially recessed annular groove ( 45 ) on the face ( 17 ). 
   
   
       7 . The sealing system according to  claim 6 , wherein at least one cover element ( 47 ), which forms a heat shield for at least one sealing element ( 31 ) at least on its side that faces the face ( 17 ) of the flange part ( 11 ), is arranged in the annular groove ( 45 ). 
   
   
       8 . The sealing system according to  claim 7 , wherein as a cover element, a ring element ( 47 ) with a flat, curved or angled profile is provided. 
   
   
       9 . The sealing system according to  claim 8 , wherein at least one mold seal ( 31 ) is provided as a sealing element. 
   
   
       10 . The sealing system according to  claim 8 , wherein at least one metal crimping seal ( 29 ) is provided as a sealing element.