A gas generator for an airbag includes a first gas reserve with a first orifice, a first mechanism arranged for opening the first gas reserve, and a diffusion chamber arranged for diffusing the discharge gases. The generator additionally includes a mixing chamber comprising at least one first communication surface with the diffusion chamber. The gas generator further including a second mechanism comprising a second actuator and a mobile obturator between a first obstruction position, in which it obstructs a second communication surface with a diffusion chamber and a second passage position, in which the second communication surface is free.

The invention relates to a hybrid inflator especially for a vehicle safety system, comprising an igniter (10), a combustion chamber (16) including a propellant charge (18) which is separated from the igniter (10) by a first bursting element (14) held by a bursting element holder (13), and comprising a compressed gas tank (20) filled with compressed gas and having at feast one discharge opening, the discharge opening being closed by a second bursting element (24) and the compressed gas tank (20) being fluid-communicated with the combustion chamber (16) so that the compressed gas surrounds the propellant charge (18). The invention excels by the fact that the bursting element holder (13) at least in portions delimits an ignition chamber (30) containing a booster charge (15), wherein a shock wave (SW) for opening the second bursting element (24) can be formed only when both the igniter (10) and the booster charge (15) have been ignited and, respectively, activated. The invention further deals with an airbag unit and a vehicle safety system comprising said hybrid inflator or said airbag unit. Moreover, the invention states a method of forming a shock wave within a hybrid inflator.

The invention relates to a hybrid inflator especially for a vehicle safety system, comprising an igniter (10), a combustion chamber (16) including a propellant charge (18) which is separated from the igniter (10) by a first bursting element (14) held by a bursting element holder (13), and comprising a compressed gas tank (20) filled with compressed gas and having at feast one discharge opening, the discharge opening being closed by a second bursting element (24) and the compressed gas tank (20) being fluid-communicated with the combustion chamber (16) so that the compressed gas surrounds the propellant charge (18). The invention excels by the fact that the bursting element holder (13) at least in portions delimits an ignition chamber (30) containing a booster charge (15), wherein a shock wave (SW) for opening the second bursting element (24) can be formed only when both the igniter (10) and the booster charge (15) have been ignited and, respectively, activated. The invention further deals with an airbag unit and a vehicle safety system comprising said hybrid inflator or said airbag unit. Moreover, the invention states a method of forming a shock wave within a hybrid inflator.

The invention relates to a hybrid inflator especially for a vehicle safety system, comprising an igniter (10), a combustion chamber (16) including a propellant charge (18) which is separated from the igniter (10) by a first bursting element (14) held by a bursting element holder (13), and comprising a compressed gas tank (20) filled with compressed gas and having at feast one discharge opening, the discharge opening being closed by a second bursting element (24) and the compressed gas tank (20) being fluid-communicated with the combustion chamber (16) so that the compressed gas surrounds the propellant charge (18). The invention excels by the fact that the bursting element holder (13) at least in portions delimits an ignition chamber (30) containing a booster charge (15), wherein a shock wave (SW) for opening the second bursting element (24) can be formed only when both the igniter (10) and the booster charge (15) have been ignited and, respectively, activated. The invention further deals with an airbag unit and a vehicle safety system comprising said hybrid inflator or said airbag unit. Moreover, the invention states a method of forming a shock wave within a hybrid inflator.

The invention relates to a hybrid inflator especially for a vehicle safety system, comprising an igniter (10), a combustion chamber (16) including a propellant charge (18) which is separated from the igniter (10) by a first bursting element (14) held by a bursting element holder (13), and comprising a compressed gas tank (20) filled with compressed gas and having at feast one discharge opening, the discharge opening being closed by a second bursting element (24) and the compressed gas tank (20) being fluid-communicated with the combustion chamber (16) so that the compressed gas surrounds the propellant charge (18). The invention excels by the fact that the bursting element holder (13) at least in portions delimits an ignition chamber (30) containing a booster charge (15), wherein a shock wave (SW) for opening the second bursting element (24) can be formed only when both the igniter (10) and the booster charge (15) have been ignited and, respectively, activated. The invention further deals with an airbag unit and a vehicle safety system comprising said hybrid inflator or said airbag unit. Moreover, the invention states a method of forming a shock wave within a hybrid inflator.

The disclosure relates to a gas generator fora vehicle safety system. The gas generator has a longitudinal axis, an outer housing in the form of a compressed-gas container. In an inoperative state of the gas generator, the housing is filled with compressed gas. The housing is closed at one housing end with a closure element by a welded joint, which extends along the longitudinal axis from the welded joint into the housing. The housing has at least one bead for mechanically relieving the welded joint of load. A bead base of the bead is provided in a region of an axial longitudinal extent of the closure element.

The disclosure relates to a gas generator fora vehicle safety system. The gas generator has a longitudinal axis, an outer housing in the form of a compressed-gas container. In an inoperative state of the gas generator, the housing is filled with compressed gas. The housing is closed at one housing end with a closure element by a welded joint, which extends along the longitudinal axis from the welded joint into the housing. The housing has at least one bead for mechanically relieving the welded joint of load. A bead base of the bead is provided in a region of an axial longitudinal extent of the closure element.

The invention relates to a gas generator (100), especially for a vehicle safety system, comprising an exterior housing (34), an igniter unit (38) having an igniter (42), a combustion chamber (14) having fuel bodies (18, 24), the combustion chamber being arranged axially downstream of the igniter unit (38), at least one filter unit (10) being arranged within the combustion chamber (14), which filter unit (10) divides the combustion chamber (14) along a longitudinal axis (La) of the gas generator (100) into a first combustion chamber portion (15) having a first number of first fuel bodies (18) and at least one additional combustion chamber portion (20) having an additional number of additional fuel bodies (24).

The invention relates to a gas generator (100), especially for a vehicle safety system, comprising an exterior housing (34), an igniter unit (38) having an igniter (42), a combustion chamber (14) having fuel bodies (18, 24), the combustion chamber being arranged axially downstream of the igniter unit (38), at least one filter unit (10) being arranged within the combustion chamber (14), which filter unit (10) divides the combustion chamber (14) along a longitudinal axis (La) of the gas generator (100) into a first combustion chamber portion (15) having a first number of first fuel bodies (18) and at least one additional combustion chamber portion (20) having an additional number of additional fuel bodies (24).

A metal assembled body including a first member formed by forging a metal material, the first member including a peripheral wall portion in which a metal flow is formed along an axial direction and an extending portion extending from the peripheral wall portion and having an opening, the peripheral wall portion and the extending portion being formed integrally, and a closing member welded to a welding surface on the extending portion to close the opening, before the closing member is welded, the extending portion being formed to expose an end portion of the metal flow at the welding surface, and a welding position of the closing member on the welding surface being set to make a width of a first region larger than a width of a region excluding the first region, the first region being a region divided by a welding site, where arrival of a gas is inhibited.