| 摘要 |
PROBLEM TO BE SOLVED: To simply eliminate rotational unbalance of a fly wheel. SOLUTION: The flexible fly wheel, in particular, the flexible fly wheel for an automobile comprises an annular mass member (20) supported by a flexible metal sheet fixed to an end of a crankshaft, and a ring (32), which is formed around the annular mass member (20) and has teeth (33) for determining a rotational angular position and a no-teeth region (34). A balancing aperture (36) is formed by casting on the inner peripheral portion of the annular mass member (20) so as to be radially opposed to the region (34). COPYRIGHT: (C)2003,JPO
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