Patent ID: 7610889

Claim:
A camshaft and a sensor assembly for an internal combustion engine comprising: a first camshaft including a first shaft, a plurality of cams mounted at spaced locations along the length of the first shaft, and a first target wheel mounted on the shaft and spaced from the ends of the shaft, whereby the target wheel does not increase the effective length of the first shaft; a second camshaft arranged parallel to the first camshaft, the second camshaft including a second shaft, a plurality of cams mounted at spaced locations along the length of the second shaft, and a second target wheel mounted on and spaced from the end of the second camshaft; a sensor assembly mounted in a position to sense the rotational position of the target wheel of the first camshaft; and a mount for the sensor assembly that positions the sensor assembly between the two camshafts; and two sensors mounted in the sensor assembly that face in opposite directions and positioned to sense the target wheels on either side of the sensor assembly.