| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of components, miniaturize a rotation transmission mechanism around a cam shaft, and miniaturize an engine body and a cover member covering the rotation transmission mechanism in an internal combustion engine including a rotation sensor for detecting a rotation state of a camshaft. SOLUTION: The internal combustion engine E includes the rotation sensor 80 detecting the rotation position of a detected part 71 provided on a driven rotation member driven and rotated by the rotation transmission mechanism T transmitting rotation of the crankshaft 5 to the camshafts 31, 32. The rotation transmission mechanism T includes an intermediate rotation member 50 rotating at same speed as the camshafts 31, 32 and having a rotation center line L1 closer to a crankshaft 5 than cam center lines Li, Le of the camshafts 31, 32, a primary rotation transmission mechanism 40 transmitting rotation of the crankshaft 5 to the intermediate rotation member 50, and a secondary rotation transmission mechanism 60 transmitting rotation of the intermediate rotation member 50 to each camshaft 31, 32. The detected part 71 is disposed on the intermediate rotation member 50. COPYRIGHT: (C)2011,JPO&INPIT
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