Apparatus for the variable setting of the control times of gas exchange valves of an internal combustion engine

Abstract

The invention relates to an apparatus ( 1 ) for the variable setting of the control times of gas exchange valves of an internal combustion engine, having a stator ( 2 ) and an output element ( 3 ) which is arranged coaxially with respect to the former, the two components being mounted such that they can rotate with respect to one another, and having a housing ( 11 ) which is configured separately with respect to the stator ( 2 ) and with respect to the output element ( 3 ) and which surrounds the stator ( 2 ) and the output element ( 3 ) at least partly and prevents engine oil escaping from the apparatus ( 1 ), an outer circumferential surface of the stator ( 2 ) being configured in the circumferential direction with a radial profile, into which the housing ( 11 ) protrudes in such a way that a form-fitting connection of both components is produced in the circumferential direction.

1 . Apparatus for the variable setting of the control times of gas exchange valves of an internal combustion engine, comprising: 
 a stator and an output element which is arranged coaxially with respect to the stator,    the stator and the output element being mounted such that they can rotate with respect to one another,    a housing which is configured separately with respect to the stator and with respect to the output element and which surrounds the stator and the output element at least partly, wherein    an outer circumferential surface of the stator is configured in the circumferential direction with a radial profile, into which the housing protrudes in such a way that a form-fitting connection of both components is produced in the circumferential direction.    
   
   
       2 . Apparatus according to  claim 1 , the housing prevents pressure medium from escaping from the apparatus.  
   
   
       3 . Apparatus according to  claim 1 , wherein at least one pressure space is formed between the stator and the output element, the housing comprises at least two housing elements, and at least one flat section of the housing which stands perpendicularly with respect to the axial direction of the apparatus acts as a sealing face for the pressure space in the axial direction.  
   
   
       4 . Apparatus according to  claim 1 , wherein the stator is configured as a sheet-metal part which is formed without cutting.  
   
   
       5 . Apparatus according to  claim 4 , wherein the stator is manufactured by a deep-drawing process.  
   
   
       6 . Apparatus according to  claim 3 , wherein at least one of the housing elements configured as a sheet-metal part which is formed without cutting.  
   
   
       7 . Apparatus according to  claim 6 , wherein at least one housing element is manufactured by a deep-drawing process.  
   
   
       8 . Apparatus according to  claim 1 , wherein the two housing elements are connected to one another by means of a welded connection.  
   
   
       9 . Apparatus according to  claim 1 , wherein a cylindrical section which extends in the axial direction is formed on the housing for sealing off the apparatus with respect to a radial shaft sealing ring.  
   
   
       10 . Apparatus according to  claim 9 , wherein a camshaft engages into the section, and in that a gap is formed between the internal diameter of the section and the camshaft.  
   
   
       11 . Apparatus according to  claim 1 , wherein shaped elements are formed on at least one of the housing elements in order to increase the surface area.  
   
   
       12 . Apparatus according to  claim 1 , wherein a locking device is provided, a locking pin engaging into a slotted guide which is formed on a sealing washer, and the sealing washer being composed of a hardenable steel.