Patent ID: 8397686

Claim:
An engine assembly comprising: an engine structure defining: a combustion chamber; a first intake port in communication with the combustion chamber and directing intake air flow toward a central region of the combustion chamber; and a second intake port in communication with the combustion chamber, wherein a centerline of the combustion chamber is defined between outlets of the first and second intake ports, a terminal portion of the first intake port defining a flow path extending toward the centerline; a first intake valve supported by the engine structure and selectively opening and closing the first intake port; a second intake valve supported by the engine structure and selectively opening and closing the second intake port; a first valve lift assembly engaged with the first intake valve; a second valve lift assembly engaged with the second intake valve; and a camshaft assembly rotationally supported by the engine structure and including first and second shafts, the second shaft coaxial with and rotatable relative to the first shaft, a first intake lobe fixed for rotation with the first shaft and engaged with the first valve lift assembly and a second intake lobe fixed for rotation with the second shaft and engaged with the second valve lift assembly, the first intake lobe rotationally offset from the second intake lobe in a rotational direction of the camshaft assembly.