| 摘要 |
PROBLEM TO BE SOLVED: To provide a damping device of an internal combustion engine which can downsize the internal combustion engine and which can prevent the noise generated from a damping structure from travelling to the outside of the internal combustion engine. SOLUTION: A viscous damper 12 is provided to a counter weight 4B of a crankshaft 2. Because of this, since the viscous damper 12 is provided to the interior of an engine body 1, the securing of a space used for the installation of the viscous damper 12 on the outside of the engine body 1 becomes unnecessary, thus the engine can be miniaturized. Then, even when a noise is generated from the viscous damper 12, the noise does not travel to the outside of the engine body 1 since the viscous damper 12 is housed in the interior of the engine body 1. Thus, the noise does not travel to the interior space of a vehicle or to the outside of the vehicle, and the damping device of the engine is made quiet. COPYRIGHT: (C)2007,JPO&INPIT
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