used in the safety device of a motor vehicle in order to protect pedestrians if the car has a head-on collision with a pedestrian, Triggered stroke actuator

摘要

A triggered-stroke actuator with a damped return stroke. According to the invention, the actuator houses a piston (15), and a gas generator (19) including a fast combustion pyrotechnic charge, and further houses a pyrotechnic charge (38) of combustion that is slower than the combustion of said gas generator (19).