Design principle of a split rotor for a hydraulic camshaft adjuster

Abstract

A multi-part rotor ( 1 ) for a hydraulic camshaft adjuster, the multi-part rotor having a rotor main body ( 2 ) that is connected to at least a first rotor secondary body ( 3 ) for conjoint rotation and conjoint axial movement, the rotor secondary body ( 3 ) defining, at least in sections, a contour of a hydraulic fluid conducting channel ( 5 ), and the rotor main body ( 2 ) being staked to the rotor secondary body ( 3 ), is provided.

What is claimed is: 
     
         1 - 10 . (canceled) 
     
     
         11 . A multipart rotor for a hydraulic camshaft adjuster, comprising:
 a rotor main body connected in a rotatably fixed and axially fixed manner to at least a first rotor secondary body, the first rotor secondary body defining, at least in sections, a contour of a hydraulic medium-conducting channel, the rotor main body being caulked to the first rotor secondary body.   
     
     
         12 . The rotor as recited in  claim 11  wherein the rotor main body is caulked to a second rotor secondary body. 
     
     
         13 . The rotor as recited in  claim 12  wherein the rotor main body and the first and second rotor secondary bodies are designed as mutually concentric components. 
     
     
         14 . The rotor as recited in  claim 12  wherein the rotor main body is situated in the manner of a sandwich between the first rotor secondary body and the second rotor secondary body, the first and second rotor secondary bodies being plate shaped, or the rotor main body, the first rotor secondary body, and the second rotor secondary body are situated relative to one another in the manner of an onion skin. 
     
     
         15 . The rotor as recited in  claim 11  wherein the first sleeve-like rotor secondary body is inserted into a groove in the shell-like rotor main body in such a way that the first rotor secondary body adjoins or rests against the rotor main body on three sides, at least in sections, the first rotor secondary body being a sleeve and the rotor main body being a shell. 
     
     
         16 . The rotor as recited in  claim 12  wherein the second rotor secondary body is a ring. 
     
     
         17 . The rotor as recited in  claim 11  wherein the rotor main body and the first rotor secondary body have differences in material or density or hardness or porosity. 
     
     
         18 . The rotor as recited in  claim 12  wherein the rotor main body, the first rotor secondary body, or the second rotor secondary body is made of a metallic or ceramic sintered material, a steel alloy, a light metal alloy, or a plastic. 
     
     
         19 . The rotor as recited in  claim 12  wherein the rotor main body being caulked to the first rotor secondary body via a caulking, the caulking being achieved by the engagement of a tab with a pocket or recess, a pocket contour of the pocket or recess being adapted to a tab contour of the tab. 
     
     
         20 . The rotor as recited in  claim 19  wherein an angle α is defined between a surface extending in the circumferential direction and a surface, oriented in the radial direction, of the pocket in a radially inner area of the pocket, in which α=90°, or 90°<α<100°, or α<90°.