Adjustable ring

Abstract

A charging device adjusting ring for a variable turbine and/or compressor geometry is disclosed. The charging device may include at least one inwardly directed recess for receiving at least one blade lever heads of a blade lever, wherein each recess comprises at least two lateral flanks. Additionally, at least one of the at least two flanks has a curved shape, and wherein the at least two flanks have a predefined deviation from a parallel arrangement.

1 . A charging device adjusting ring for a variable turbine and/or compressor geometry, comprising:
 at least one inwardly directed recesses for receiving at least one blade lever heads of a blade lever, wherein each recess comprises at least two lateral flanks,   wherein at least one of the at least two flanks has a curved shape, and   wherein the at least two flanks have a predefined deviation from a parallel arrangement.   
     
     
         2 . The adjusting ring according to  claim 1 , wherein at least one of the at least two flanks is configured to extend in a radial plane of the adjusting ring. 
     
     
         3 . The adjusting ring according to  claim 1 , wherein the at least two lateral flanks are configured in a mirror image manner with respect to each other. 
     
     
         4 . The adjusting ring according to  claim 1 , wherein a base of one of the recesses has a curved shape. 
     
     
         5 . A variable turbine or compressor geometry, comprising:
 a blade bearing ring, in which at least one guide blade is rotatably mounted via a corresponding blade bearing pin; and   an adjusting ring configured with at least two flanks having a predefined deviation from a parallel configuration.   
     
     
         6 . The variable turbine or compressor geometry according to  claim 5 , wherein at least one of the at least two flanks is configured such that the blade lever head supports itself substantially orthogonally on the at least one at least two flank independently of the position of the guide plates. 
     
     
         7 . The variable turbine or compressor geometry according to  claim 5 , wherein an area is configured between the blade lever head and the adjusting ring to receive a force in a circumferential direction (tangentially) of the adjusting ring. 
     
     
         8 . An exhaust gas turbo charging device, having a variable turbine or compressor geometry, comprising: a blade bearing ring;
 at least one guide blade   a blade bearing pin configured to rotatably mount each at least one guide blade to the blade bearing ring; and   an adjusting ring configured with at least two flanks having a predefined deviation from a parallel configuration.   
     
     
         9 . The adjusting ring according to  claim 1 , wherein a shape of the at least one of the at least two flanks is configured as a parabolic. 
     
     
         10 . The adjusting ring according to  claim 5 , wherein at least one of the at least two flanks is configured to extend in a radial plane of the adjusting ring. 
     
     
         11 . The adjusting ring according to  claim 5 , wherein the at least two lateral flanks are in a mirror image configuration with respect to each other. 
     
     
         12 . The adjusting ring according to  claim 5 , wherein a base of one of the recesses has a curved shape. 
     
     
         13 . The adjusting ring according to  claim 8 , wherein at least one of the at least two flanks is configured to extend in a radial plane of the adjusting ring. 
     
     
         14 . The adjusting ring according to  claim 8 , wherein the at least two lateral flanks are configured in a mirror image manner with respect to each other. 
     
     
         15 . The adjusting ring according to  claim 8 , wherein a base of one of the recesses has a curved shape.