Internal combustion engine comprising at least one camshaft

Abstract

An internal combustion engine, the engine having at least one camshaft, the camshaft is interconnected to the internal combustion engine through a plurality of rotating members, rotating members include at least one roller element and a predetermined load limit. The rotating members are configured individually along the camshaft and are positioned according to an actual internal combustion engine operating load value.

1 . An internal combustion engine, comprising:
 at least one camshaft, wherein the camshaft is mounted with a plurality of roller bearings, the roller bearings include at least one roller element and a predetermined roller bearing load limit, wherein the bearings are configured individually along the camshaft and are positioned according to an actual load value determined during the operation of the internal combustion engine.   
     
     
         2 . The internal combustion engine according to  claim 1 , wherein at least two bearings have a different number of rolling elements. 
     
     
         3 . The internal combustion engine according to  claim 1 , wherein at least two bearings have rolling elements, which are different with respect to their diameter. 
     
     
         4 . The internal combustion engine according to  claim 2 , wherein the rolling elements are needles. 
     
     
         5 . The internal combustion engine according to  claim 1 , wherein the camshaft and the at least one respective roller bearing includes at least one corresponding marking element, which provides an association between the roller bearing and assembly location of the actual load value of the camshaft. 
     
     
         6 . An internal combustion engine rotating assembly, comprising:
 at least one camshaft, the camshaft having a plurality of different operating loads; and   at least two bearing elements configured on the camshaft, the bearing elements having at least one bearing capacity, each bearing capacity corresponding to the different operating loads of the camshaft, wherein the load bearing elements are configured about the camshaft adjacent at least one operating load, and wherein a bearing element diameter at a first predetermined position are different from the bearing elements at a second predetermined position.   
     
     
         7 . The rotating assembly according to  claim 6 , wherein a number of roller elements configured about the camshaft at the first predetermined position are different from a number of roller elements configured at the second predetermined position. 
     
     
         8 . The rotating assembly according to  claim 6 , wherein the rolling elements are needles. 
     
     
         9 . The rotating assembly according to  claim 6 , wherein roller elements are roller bearings that include at least on marking, the marking corresponds to a load marking on the camshaft, which provides an association between the roller bearing and an assembly location of the actual operating load value of the camshaft. 
     
     
         10 . A method of reducing weight in an internal combustion engine, comprising:
 selecting a first roller bearing with a plurality of roller elements, each roller element having a first diameter;   selecting at least one additional roller bearing with a plurality of roller elements, each roller element having a different diameter from the first diameter;   configuring the first roller bearing and the at least one additional roller bearing at predetermined positions on at least one camshaft; and   implementing a configuring of an internal combustion engine with the least one camshaft.   
     
     
         11 . The method of  claim 10 , further comprising:
 determining an actual operating load along the length of the camshaft; and   positioning at least one mark on the camshaft corresponding to the operating load.   
     
     
         12 . The method of  claim 11 , further comprising:
 determining a load capacity of each respective roller bearing, wherein the first and second roller bearings have different load capacities;   comparing the actual load with the roller bearing load capacity;   positioning at least one mark on at least one of the respective roller bearings, the roller bearing mark represents the predetermined load capacity and corresponds with the predetermined actual operating load; and   positioning the roller bearing on the at least one camshaft, wherein the predetermined position corresponds to the markings on the at least one camshaft and roller bearing.