Rotor for a hydraulic camshaft phaser

Abstract

A rotor ( 2 ) for a hydraulic camshaft phaser ( 1 ), including a hub ( 5 ) that holds a camshaft and including an outer shell ( 6 ) with a plurality of vane elements ( 7 ), whereby hydraulic-medium channels ( 24, 26 ) run from the interior of the hub ( 5 ) to the outer shell ( 6 ). At least one hydraulic-medium channel ( 24, 26 ) is interrupted by an axial recess ( 16 ) in the material, whereby a bushing ( 47 ) that connects the interrupted hydraulic-medium channel ( 24, 26 ) is inserted into the recess ( 16 ) in the material. A hydraulic camshaft phaser ( 1 ) having such a rotor ( 2 ). The recess ( 16 ) provided in the material renders the rotor ( 2 ) and the camshaft phaser ( 1 ) particularly lightweight.

What is claimed is: 
     
         1 - 10 . (canceled) 
     
     
         11 . A rotor for a hydraulic camshaft phaser, the rotor comprising:
 a hub holding a camshaft and including an outer shell with a plurality of vane elements, hydraulic-medium channels running from an interior of the hub to the outer shell, at least one of the hydraulic-medium channels being interrupted by an axial recess in a material, a bushing connecting the interrupted hydraulic-medium channel being inserted into the recess in the material.   
     
     
         12 . The rotor as recited in  claim 11  wherein the recess in the material is in the form of an annular space interrupting several hydraulic-medium channels and being situated between the hub and the outer shell, whereby, in each case, the bushing or another bushing is inserted to connect each of the interrupted hydraulic-medium channels. 
     
     
         13 . The rotor as recited in  claim 12  wherein the annular space is interrupted by at least one radial web. 
     
     
         14 . The rotor as recited in claim  10  wherein the bushing is arranged on an insert piece having the shape of ring segments or being ring-shaped and inserted into the recess in the material. 
     
     
         15 . The rotor as recited in  claim 14  wherein the insert piece includes a plurality of axial projections so that, at an axial height, the insert piece inserted is flush with the outer shell. 
     
     
         16 . The rotor as recited in  claim 15  wherein the bushing is arranged on an axial projection. 
     
     
         17 . The rotor as recited in claim  10  further comprising a locking section with a hole to receive a movable locking bolt, the hole being open up to an axial wall section at a hole entrance, a support element serving as a counterbearing for the locking bolt being inserted into an open section opposite from the hole entrance. 
     
     
         18 . The rotor as recited in  claim 17  further comprising a support crosspiece having an axial spine as the support element. 
     
     
         19 . The rotor as recited in  claim 17  wherein the support element with the bushing is arranged on an insert piece. 
     
     
         20 . A camshaft phaser comprising: a stator and a rotor as recited in claim  10  rotatable around a rotational axis relative to the stator.