| 摘要 |
<p>A drive clutch assembly (30) having a fixed sheave (44) and a movable sheave (46) rotatable with the drive shaft (34) of engine (18) comprising a multi-staged speed responsive or displacement system. The speed responsive system initially applies a first displacement rate to the movable sheave (46) as it moves toward the fixed sheave (44) and applies a second displacement rate to the movable sheave (46) when the drive clutch assembly (30) reaches a predetermined rotational speed.</p> |
