US12594901 - Gas generator

The patent describes a gas generator designed for vehicle safety devices, featuring a pressure chamber filled with compressed gas and a solid propellant contained within a wire-formed fuel holder that is adjacent to an igniter unit. This configuration allows for the solid propellant to be ignited when activated, while ensuring that the pressure chamber remains free from solid propellant outside the holder.

Claim 1

1 . A gas generator, specifically for a safety device in vehicles, comprising: a pressure chamber filled with compressed gas which is sealed against an environment of the gas generator by a membrane, a solid propellant received in the pressure chamber, the compressed gas being in direct contact with the solid propellant, before the gas generator is activated, and an igniter unit adjacent to the pressure chamber by which the solid propellant can be ignited, when the gas generator is activated, wherein the solid propellant is surrounded by a fuel holder receiving the same which protrudes into the pressure chamber and is directly adjacent to the igniter unit, wherein the pressure chamber is free from solid propellant outside the fuel holder, and wherein the fuel holder is formed of wire and is designed as a cylindrical and/or conical coil spring. a pressure chamber filled with compressed gas which is sealed against an environment of the gas generator by a membrane, a solid propellant received in the pressure chamber, the compressed gas being in direct contact with the solid propellant, before the gas generator is activated, and an igniter unit adjacent to the pressure chamber by which the solid propellant can be ignited, when the gas generator is activated, wherein the solid propellant is surrounded by a fuel holder receiving the same which protrudes into the pressure chamber and is directly adjacent to the igniter unit, wherein the pressure chamber is free from solid propellant outside the fuel holder, and wherein the fuel holder is formed of wire and is designed as a cylindrical and/or conical coil spring.

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USPTO PDF

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