Camshaft assembly

Abstract

A camshaft assembly for an internal combustion engine of a motor vehicle is disclosed. The camshaft assembly includes a camshaft extending along an axial direction and at least one cam non-rotatably arranged on the camshaft. An axial bearing is provided for at least one of an axial alignment and an axial fixing of the camshaft. The at least one cam is part of the axial bearing.

1 . A camshaft assembly, comprising:
 a camshaft extending along an axial direction and at least one cam non-rotatably arranged on the camshaft,   an axial bearing for at least one of an axial alignment and an axial fixing of the camshaft, wherein the at least one cam is part of the axial bearing.   
     
     
         2 . The assembly according to  claim 1 , wherein the axial bearing includes a first axial bearing element and a second axial bearing element that lie opposite one another along the axial direction, and wherein the at least one cam is arranged axially between the first axial bearing element and the second axial bearing element so that the camshaft with the at least one cam can rotate relative to the first bearing element and the second bearing element about a centre longitudinal axis of the camshaft running in the axial direction. 
     
     
         3 . The assembly according to  claim 2 , wherein the at least one cam is clamped between the first bearing element and the second bearing element so as to be rotatably adjustable about the centre longitudinal axis of the camshaft. 
     
     
         4 . The assembly according to  claim 1 , wherein the axial bearing includes a first cam and a second cam non-rotatably arranged on the camshaft spaced apart from one another, and a first axial bearing element and a second axial bearing element arranged relative to one another on or at the camshaft such that the first bearing element and the first cam limit a movement of the camshaft in the axial direction and the second bearing element and the second cam limit an axial movement of the camshaft against the axial direction. 
     
     
         5 . The assembly according to  claim 4 , wherein the first bearing element and the second bearing element are arranged between the first cam and the second cam along the axial direction. 
     
     
         6 . The assembly according to  claim 4 , wherein the first cam and the second cam are arranged between the first bearing element and the second bearing element along the axial direction. 
     
     
         7 . The assembly according to  claim 2 , wherein two axial end faces of the at least one cam facing the first bearing element and the second bearing element and two end faces of the first bearing element and the second bearing element facing the at least one cam each form sliding surfaces of the axial bearing. 
     
     
         8 . The assembly according to  claim 2 , wherein the first bearing element and the second bearing element are structured for absorbing axial forces. 
     
     
         9 . The assembly according to  claim 2 , wherein the axial bearing consists of the at least one cam and the first bearing element and the second bearing element. 
     
     
         10 . An internal combustion engine, comprising:
 at least one cylinder block that comprises a combustion chamber and at least one adjustable valve for introducing fresh air into the combustion chamber or for discharging exhaust gas out of the combustion chamber,   a camshaft assembly, the camshaft assembly including:
 a camshaft extending along an axial direction and at least one cam non-rotatably arranged on the camshaft, 
 an axial bearing for at least one of an axial alignment and an axial fixing of the camshaft, wherein the at least one cam is part of the axial bearing, 
 wherein the axial bearing includes a first axial bearing element and a second axial bearing element that lie opposite one another along the axial direction, and wherein the at least one cam is arranged axially between the first axial bearing element and the second axial bearing element such that the camshaft with the at least one cam can rotate relative to the first axial bearing element and the second axial bearing element about a centre longitudinal axis of the camshaft running in the axial direction, 
   wherein the first bearing element and the second bearing element are arranged fixed in place relative to the at least one cylinder block, and   wherein the at least one cam of the axial bearing is drive-connected to the at least one valve for adjusting the at least one valve.   
     
     
         11 . The internal combustion engine according to  claim 10 , wherein the camshaft is rotatably mounted on the at least one cylinder block via a radial bearing. 
     
     
         12 . The internal combustion engine according to  claim 10 , wherein the at least one cam is clamped between the first axial bearing element and the second axial bearing element so as to be rotatably adjustable about the centre longitudinal axis of the camshaft. 
     
     
         13 . The internal combustion engine according to  claim 10 , wherein the axial bearing further includes a first cam and a second cam non-rotatably arranged on the camshaft spaced apart from one another, and wherein the first cam and the first bearing element are structured and arranged to limit a first axial movement of the camshaft in the axial direction, and the second cam and the second bearing element are structured and arranged to limit a second axial movement of the camshaft against the axial direction. 
     
     
         14 . The internal combustion engine according to  claim 13 , wherein the first bearing element and the second bearing element are arranged between the first cam and the second cam along the axial direction. 
     
     
         15 . The internal combustion engine according to  claim 13 , wherein the first cam and the second cam are arranged between the first bearing element and the second bearing element along the axial direction. 
     
     
         16 . The internal combustion engine according to  claim 13 , wherein two axial end faces of the at least one cam that face the first bearing element and the second bearing element and two end faces of the first bearing element and the second bearing element that face the at least one cam form sliding surfaces of the axial bearing. 
     
     
         17 . The internal combustion engine according to  claim 13 , wherein the first bearing element and the second bearing element are structured for absorbing axial forces. 
     
     
         18 . The internal combustion engine according to  claim 10 , wherein the axial bearing consists of the at least one cam and the first bearing element and the second bearing element. 
     
     
         19 . The internal combustion engine according to  claim 10 , wherein two axial end faces of the at least one cam that face the first bearing element and the second bearing element and two end faces of the first bearing element and the second bearing element that face the at least one cam form sliding surfaces of the axial bearing. 
     
     
         20 . The internal combustion engine according to  claim 10 , wherein the first bearing element and the second bearing element are structured for absorbing axial forces.