| 摘要 |
PROBLEM TO BE SOLVED: To facilitate confirmation of a mark for confirming a rotation position of a crankshaft, in an internal combustion engine.SOLUTION: An engine 41 includes: a rotary body 100 including a flywheel 101 coaxially installed in a shaft end part of the crankshaft 50 and interlocking with rotation of the crankshaft 50, and a cooling fan 80 installed on an outer surface 104A on the outside in the axial direction of the flywheel 101 and cooling the engine 41 by sucking air from an external part; and marks 86 provided in the rotary body 100 in response to the predetermined rotation positions of the crankshaft 50. The cooling fan 80 is positioned in a predetermined angle position to the rotational direction of the flywheel 101, and the marks 86 are provided in the cooling fan 80. |
