Patent ID: 8807106

Claim:
A camshaft assembly configured to rotate about an axis of rotation within the engine of a motor vehicle to provide timing between cyclic operation of engine components, comprising: a member for providing timing to a first engine component; wherein the member includes a cam surface configured to drive the timing of the first engine component, a bore, and an opening; and a camshaft body cast to the member and configured to engage the opening of the member; wherein the camshaft body includes a lobe configured to drive the timing of a second engine component, a shoulder configured to engage the bore to prohibit movement of the member along the camshaft body in the direction of the shoulder, and a journal configured to allow efficient rotation of the camshaft body about the axis of rotation; and wherein the member is formed from a first material and the camshaft body is formed from a second material, thereby allowing the camshaft assembly to withstand two levels of stress.