| 摘要 |
A dual synchronization system of a manual transmission constructed in the dual set of a plurality of keys to be attached to the internal side of a synchronizer sleeve by a synchronizer ring, first and second key sets being positioned apart at a predetermined degree of angle along the circumferential direction of a synchronizer ring, wherein the first key set attaching the synchronizer ring close to a clutch gear at the initiation of synchronization and the second key set pushing the synchronizer ring close to the clutch gear after the completion of synchronization, thereby continuously maintaining the frictional force between the synchronizer ring and the clutch gear to achieve stable shifting feelings.
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