Patent ID: 6935293

Claim:
An internal combustion engine comprising: a crankcase; a pump supported by the crankcase, the pump including an inlet and a first outlet; a first camshaft having a first channel extending between first and second ends of the first camshaft, wherein the first camshaft end is supported at least indirectly by one of the pump and the crankcase, and wherein lubricant is provided from the pump to the first channel at the first end and communicated by way of the first channel to the second end; a crankshaft supported by the crankcase; a second channel communicating at least a first portion of the lubricant delivered to the second end of the first camshaft by way of the first channel to a first crankshaft bearing of the crankshaft; and a third channel within the crankshaft that receives at least a second portion of the lubricant communicated by the second channel and further communicates at least a third portion of the second portion of the lubricant to a crankpin bearing on the crankshaft.