Exhaust flap means

Abstract

An exhaust flap means for motor vehicles comprises a housing ( 10 ) in which an exhaust flap ( 12 ) is arranged. The exhaust flap ( 12 ) is connected with a flap shaft ( 14 ) for pivoting the exhaust flap ( 12 ). The housing ( 10 ) comprises two passage openings ( 22 ) opposite each other for guiding through the flap shaft ( 14 ). Further, two bearing means ( 18,40 ) for supporting the flap shaft ( 14 ) are provided. To permit an evening out of an offset between the two passage openings ( 22 ), one bearing means ( 18 ) comprises a bearing body ( 24 ) of ceramics, which has a spherical configuration. The opposite bearing means ( 40 ) comprises a bearing sleeve of graphite.

1 . An exhaust flap means for motor vehicles, comprising 
 an exhaust flap arranged in a housing,    a flap shaft connected with the exhaust flap,    two passage openings arranged opposite each other in the housing, for guiding through the flap shaft, and    two bearing means for supporting the flap shaft,    characterized in that    one bearing means comprises a spherically configured bearing body of ceramics and the other bearing means comprises a bearing sleeve of graphite.    
   
   
       2 . The exhaust flap means according to  claim 1 , characterized in that the ceramic bearing body is arranged at the hotter bearing means.  
   
   
       3 . The exhaust flap means according to  claim 1 , characterized in that that end of the flap shaft which is connected with a pivot mechanism is supported through the ceramic bearing body.  
   
   
       4 . The exhaust flap means according to  claim 1 , characterized in that the graphite bearing sleeve is sealed.  
   
   
       5 . The exhaust flap means according to  claim 1 , characterized in that the ceramic bearing body comprises a region shaped like a spherical calotte.  
   
   
       6 . The exhaust flap means according to  claim 1 , characterized in that a receptacle for the bearing body is formed into the housing.  
   
   
       7 . The exhaust flap means according to  claim 1 , characterized in that the ceramic bearing body is arranged in a bearing place formed in the housing.  
   
   
       8 . The exhaust flap means according to  claim 7 , characterized in that the bearing place is produced by punching and subsequent forming without cutting.  
   
   
       9 . The exhaust flap means according to  claim 7 , characterized in that the bearing place has a conical geometry.  
   
   
       10 . The exhaust flap means according to  claim 1 , characterized in that at least one bearing means is spring-loaded.  
   
   
       11 . The exhaust flap means for motor vehicles, comprising 
 an exhaust flap arranged in a housing,    a flap shaft connected with the exhaust flap,    two passage openings arranged opposite each other in the housing, for guiding through the flap shaft, and    two bearing means for supporting the flap shaft,    characterized in that    each bearing means comprises a bearing sleeve of graphite.    
   
   
       12 . The exhaust flap means according to  claim 11 , characterized in that the graphite bearing sleeve is sealed.  
   
   
       13 . The exhaust flap means according to  claim 11 , characterized in that the sealing is effected outside the housing.  
   
   
       14 . The exhaust flap means according to  claim 11 , characterized in that at least one bearing means is spring-loaded.  
   
   
       15 . An exhaust flap means for motor vehicles, comprising 
 an exhaust flap arranged in a housing,    a flap shaft connected with the exhaust flap,    two passage openings arranged opposite each other in the housing, for guiding through the flap shaft, and    two bearing means for supporting the flap shaft,    characterized in that    each bearing means comprises a spherically configured bearing body of ceramics.    
   
   
       16 . The exhaust flap means according to  claim 15 , characterized in that the ceramic bearing body comprises a region shaped like a spherical calotte.  
   
   
       17 . The exhaust flap means according to  claim 15 , characterized in that a receptacle for the bearing body is formed into the housing.  
   
   
       18 . The exhaust flap means according to  claim 15 , characterized in that the ceramic bearing body is arranged in a bearing place formed in the housing.  
   
   
       19 . The exhaust flap means according to  claim 18 , characterized in that the bearing place is produced by punching and subsequent forming without cutting.  
   
   
       20 . The exhaust flap means according to  claim 18 , characterized in that the bearing place has a conical geometry.  
   
   
       21 . The exhaust flap means according to  claim 14 , characterized in that at least one bearing means is spring-loaded.