초록 ▼

The invention relates to a gas generator for a safety system, in particular for a vehicle occupant restraint system, comprising a combustion chamber which contains propellant, a liquid chamber which contains liquid, and a mixing chamber in which a gas developed on burning of the propellant and the l

The invention relates to a gas generator for a safety system, in particular for a vehicle occupant restraint system, comprising a combustion chamber which contains propellant, a liquid chamber which contains liquid, and a mixing chamber in which a gas developed on burning of the propellant and the liquid mix with each other. The gas generator further comprises a liquid guide surface onto which the liquid when released is applied substantially tangentially, and a gas directing channel and a surface delimiting the gas directing channel. A flow break-off edge is provided in the mixing chamber, which flow break-off edge is defined on one side by the liquid guide surface and on the other side by the surface delimiting the gas directing channel. The gas directing channel directs a stream of developed gas into the mixing chamber at an angle of between approximately 60.degree. and 120.degree. with respect to the liquid guide surface in a region of the flow break-off edge, so that the liquid loosing from the flow break-off edge is entrained by the gas stream.

대표청구항 ▼

1. An inflator for a vehicle occupant restraint apparatus, said inflator comprising:a housing; a combustion chamber containing ignitable propellant which produces gas upon ignition; a liquid chamber containing liquid; a mixing chamber for mixing said gas and said liquid; a wall separating said mixin

1. An inflator for a vehicle occupant restraint apparatus, said inflator comprising:a housing; a combustion chamber containing ignitable propellant which produces gas upon ignition; a liquid chamber containing liquid; a mixing chamber for mixing said gas and said liquid; a wall separating said mixing chamber and said combustion chamber; said wall and said housing defining a gas directing channel for directing said gas, and said wall further including a liquid guide surface for guiding said liquid; an intersection of said liquid guide surface and said gas directing channel defining a flow break-off edge; said wall further including gas guiding ports for guiding said gas before said gas reaches said gas directing channel, said gas flowing through said gas guiding ports in a direction radially outwardly and subsequently in a direction generally axially to said break off edge, said liquid guide surface being curved and extending radially outward to said break-off edge, said liquid guide surface and said gas directing channel at said flow break-off edge being at an angle of between 60.degree. and 120.degree. to each other; said liquid being divided into fine droplets by said gas at said flow break-off edge.