Oil circuit for twin cam internal combustion engine

An internal combustion engine comprising:

• means for converting rotational motion imparted by a crankshaft into linear motion used to actuate a valve;
• means for pumping lubricant;
• and
• means for communicating the lubricant through at least a portion of the means for converting;
• wherein the means for pumping is actuated by the means for converting;
• and
• wherein the means for pumping pumps the lubricant into the means for communicating so that the lubricant is provided to a component requiring the lubricant.

A method of distributing lubricant within an internal combustion engine, the method comprising:

• providing a crankshaft, a first camshaft having an internal channel extending between first and second ends of the first camshaft, a pump having an inlet and an outlet, and a first bearing for the first end of the first camshaft, wherein the outlet is proximate the first bearing and the internal channel at the first end of the first camshaft;
• rotating the crankshaft;
• imparting rotational motion from the crankshaft to the first camshaft;
• imparting additional rotational motion from the first camshaft to at least a portion of the pump;
• pumping the lubricant from the inlet of the pump to the outlet of the pump as a result of the additional rotational motion, so that a first portion of the lubricant is provided to the first bearing and a second portion of the lubricant is pumped into the internal channel at the first end of the first camshaft so that the lubricant is communicated through the internal channel to the second end of the first camshaft.