Patent ID: 6189925
Filing Date: 2001-02-20
Classification: B60R

Abstract:
A gas generator (10) for an airbag system of a vehicle, comprising a combustion chamber (11) to accommodate a propellant (13) which is able to be activated, which combustion chamber has a wall (21) which has outflow openings (15) for a gas which is generated after the propellant (13) is activated, the outflow openings (15) being covered inside the combustion chamber (11) by a filtering device (16), the filtering device (16) having a portion being arranged spaced apart from the outflow openings (15) and a portion (20) contacting the wall (21) so that a ring-shaped expansion chamber (18) is defined which flowingly connects the outflow openings (15), the gas generated flowing into the expansion chamber (18), the filtering device divides the combustion chamber (11) in axial or also in radial direction into a combustion space for the propellant (13), the expansion chamber being defined by a separated volume enclosed between the filtering device (16) and the combustion chamber walls, filtering device (16) being secured inside the combustion chamber (11) such that the propellant (13) lies against a combustion chamber side of the filtering device (16) and elastically deforms the filtering device (16) without contacting the outflow openings.