Airbag device with control airbag inflation especially for motor vehicles has control valve slide loaded by gas from generator to form different pressure levels on either side of slide movement axis

摘要

A gas guide housing (10) has a valve slide to control the inflation process. The slide moves translatory inside the housing, and the housing has a cover (13) acting as stop (14) for the slide. When in open position, the slide is positioned at a distance (20) to the cover, which defines the slide movement distance, so that the gas produced by the generator (12) loads the slide in direction of its closing position. This generates different pressure levels on either side of the movement direction of the slide. The slide is a sleeve, positioned concentrically around the tubular gas generator, in the ring gap (15) between generator and housing.