STARTER FOR A COMBUSTION ENGINE, AND ASSOCIATED METHOD

摘要

The invention relates to a starter (1) for a combustion engine and to the associated method. The starter comprises an electric motor in which, when electrically powered, it drives the rotation of its rotor shaft about its longitudinal axis in a direction of rotation for starting. The starter further comprises a drive shaft that can be rotationally coupled to the rotor shaft, a pinion (13) mounted on the drive shaft and movable in a translational movement between a rest position and an active position by a movement system. Furthermore, the starter comprises a coupling system (30) that couples a rotary movement in one direction of rotation of the rotor shaft (5) to the pinion (13), the coupling system (30) being able to move from an uncoupled state into a coupled state and vice versa, in which, in the coupled state, the rotor shaft (5) is firmly attached to the pinion (13) in the starting direction of rotation, and in which in the uncoupled state, the pinion (13) is disconnected from the rotor shaft (5) in both directions of rotation. The starter further comprises a movement system for moving the pinion (13) from its rest position into the active position and vice versa, moving the coupling system (30) into the uncoupled state as it moves the pinion into the active position.