| 摘要 |
The invention relates to a gas generator for inflating a gas bag of a vehicle occupant restraint system, comprising
- igniting means (2) for producing gas and/or heat upon activation by a control signal of the vehicle;
- a first chamber (11) comprising a propellant (3, 31) ignitable by gas and/or heat produced by the igniting means (2),
- a second chamber (12) comprising pressurized inflation gas;
- an outlet opening (41) through which the inflation gas can flow out of the second chamber and into the gas bag;
- sealing means (46) sealing the outlet opening (41), wherein
- the gas generator (1) is configured in such a way that after activation of the igniting means gas and/or heat produced by the igniting means (2) ignites the propellant (3, 31) and a pressure wave (100) is created under the direct or indirect impact of gas produced by the igniting means (2), wherein the pressure wave (100) breaks the sealing means (46) such that inflation gas can escape from the second chamber (12) via the outlet opening (41), and
- the igniting means (2) comprise a volume (222) for receiving gas produced by the igniting means upon activation, wherein the volume (222) is sealed by further sealing means (152) which break if the pressure in the volume (222) exceeds a maximum value, and wherein the pressure wave (100) is created in the inflation gas due to the breakage of the further sealing means (152). Further more, the invention relates to a method of inflating a gas bag of a vehicle occupant restraint system. |
