| 摘要 |
The pulley has a ring gear (502) for uncoupling between a central hub (503) and a rim (501) on which a driving belt is stretched. The gear is associated to a progressive travel limiter for forming an elastic uncoupling assembly that provides two stiffness values whether in starting speed or started speed. The limiter has a central plate (512), integrated to the hub, coupled to stops (514) disposed in the rim`s periphery. An independent claim is also included for a driving system of a heat engine of a motor vehicle. |
