| 摘要 |
In a multiple cylinder engine having a plurality of cylinders, balance weights (4) are centrally arranged so as to suppress the secondary vibration in a space corresponding to the second bearing journal (#2) counted from the opposite side of the transmission among a plurality of the bearing journals (#1,#2,#3,#4) of the crank arms. In addition, the weights (4) can be less light-weight and space efficiency in the engine room will become high. |
