A gas generator for a safety device in a vehicle includes a housing and a combustion chamber located inside the housing. A pyrotechnic propellant and at least one filling body are accommodated in the combustion chamber. The filling body is made of a melamine resin foam.

A gas generator for a safety device in a vehicle includes a housing and a combustion chamber located inside the housing. A pyrotechnic propellant and at least one filling body are accommodated in the combustion chamber. The filling body is made of a melamine resin foam.

The invention relates to an overigniting protection device (40) for a multi-stage gas generator (10), comprising a combustion chamber limiting element (34) for limiting a combustion chamber (30) of a second ignition stage (14) of the gas generator (10) as well as an overigniting protection element (38) which is arranged on a side of the combustion chamber limiting element (34) remote from the combustion chamber (30), wherein the overigniting protection element (38) covers the side of the combustion chamber limiting element (34) remote from the combustion chamber (30), wherein the overigniting protection element (38) is tightly connected to the combustion chamber limiting element (34) via a mounting portion (42) and wherein the overigniting protection element (38) is substantially plate-shaped or completely covers the side of the combustion chamber limiting element (34) remote from the combustion chamber (30). Furthermore, the invention relates to a second ignition stage (14) of a multi-stage gas generator, a gas generator (10) and an airbag module comprising a gas generator (10).

The invention relates to an overigniting protection device (40) for a multi-stage gas generator (10), comprising a combustion chamber limiting element (34) for limiting a combustion chamber (30) of a second ignition stage (14) of the gas generator (10) as well as an overigniting protection element (38) which is arranged on a side of the combustion chamber limiting element (34) remote from the combustion chamber (30), wherein the overigniting protection element (38) covers the side of the combustion chamber limiting element (34) remote from the combustion chamber (30), wherein the overigniting protection element (38) is tightly connected to the combustion chamber limiting element (34) via a mounting portion (42) and wherein the overigniting protection element (38) is substantially plate-shaped or completely covers the side of the combustion chamber limiting element (34) remote from the combustion chamber (30). Furthermore, the invention relates to a second ignition stage (14) of a multi-stage gas generator, a gas generator (10) and an airbag module comprising a gas generator (10).

In a hybrid inflator, a housing houses a gas generator to generate a combustion gas in a housing recessed portion on a bottom portion side. A lid body provided at an outflow port of the housing and a lid body provided at a sealed portion side of a pressurized gas in a bottle in a gas discharge port portion separate the sealed portion of the pressurized gas in the bottle from outside. When the hybrid inflator is activated, the two lid bodies are broken by generation of the combustion gas from the gas generator, and whereby the pressurized gas is discharged from a discharge port of the gas discharge port portion. The gas generator is detachably assembled to the housing with respect to the housing recessed portion of the housing.

In a hybrid inflator, a housing houses a gas generator to generate a combustion gas in a housing recessed portion on a bottom portion side. A lid body provided at an outflow port of the housing and a lid body provided at a sealed portion side of a pressurized gas in a bottle in a gas discharge port portion separate the sealed portion of the pressurized gas in the bottle from outside. When the hybrid inflator is activated, the two lid bodies are broken by generation of the combustion gas from the gas generator, and whereby the pressurized gas is discharged from a discharge port of the gas discharge port portion. The gas generator is detachably assembled to the housing with respect to the housing recessed portion of the housing.

A device for activating a passenger protection unit for a vehicle. The device includes a fuel element chamber having at least one fuel element, which is designed to generate a hot gas for activating the passenger protection unit by combustion, the fuel element chamber having an outlet opening for releasing the hot gas into the passenger protection unit, and the pressure container being designed to store a pressurized cold gas, the pressure container having at least one opening for the controlled release of the cold gas into the fuel element chamber.

A device for activating a passenger protection unit for a vehicle. The device includes a fuel element chamber having at least one fuel element, which is designed to generate a hot gas for activating the passenger protection unit by combustion, the fuel element chamber having an outlet opening for releasing the hot gas into the passenger protection unit, and the pressure container being designed to store a pressurized cold gas, the pressure container having at least one opening for the controlled release of the cold gas into the fuel element chamber.

The present invention provides a support structure of a closing member for a gas generator, being arranged in the gas generator which includes a cylindrical housing provided with a gas discharge port, accommodating therein an ignition device and having an inflating gas source chamber filled with an inflating gas source, the support structure including a combination of a closing member for closing a gas discharge path and a support member of the closing member to be arranged inside the cylindrical housing, the support member including a base, and a convex first support part, which extends in one direction from a center portion of the base, and further including a gas passage hole in at least one of the base and the convex first support part, the closing member having a plate shape with a first surface and a second surface, the closing member being supported from one surface by a distal end surface of the convex first support part, which abuts against a center portion of the first surface or the second surface, and the closing member, which has an annular surface not abutted by the convex first support part, the closing member being opened as the annular surface of the closing member is ruptured.

The present invention provides a support structure of a closing member for a gas generator, being arranged in the gas generator which includes a cylindrical housing provided with a gas discharge port, accommodating therein an ignition device and having an inflating gas source chamber filled with an inflating gas source, the support structure including a combination of a closing member for closing a gas discharge path and a support member of the closing member to be arranged inside the cylindrical housing, the support member including a base, and a convex first support part, which extends in one direction from a center portion of the base, and further including a gas passage hole in at least one of the base and the convex first support part, the closing member having a plate shape with a first surface and a second surface, the closing member being supported from one surface by a distal end surface of the convex first support part, which abuts against a center portion of the first surface or the second surface, and the closing member, which has an annular surface not abutted by the convex first support part, the closing member being opened as the annular surface of the closing member is ruptured.