A passenger airbag inflator for a vehicle includes: a housing having a first gunpowder therein, including a vent hole, and communicating with an airbag cushion; a first chamber located in a first side inner space of the housing, having a first booster and a first igniter, and configured to be triggered forwardly when the first igniter is ignited; and a second chamber located in a second side inner space of the housing, having a second booster and a second gunpowder, including a second igniter, and configured to be triggered forwardly when the second igniter is ignited.

A gas generator includes a cylindrical housing including a top plate portion and a bottom plate portion, an igniter including an ignition portion charged with an ignition agent, and a fixing portion which is formed from a resin molding and fixes the igniter to the bottom plate portion. The fixing portion includes an annular wall portion surrounding an outer circumferential surface of the ignition portion. The annular wall portion has a lower cover portion provided as being continuous in a circumferential direction on a side of the bottom plate portion so as to cover the outer circumferential surface of the ignition portion as being secured to the outer circumferential surface of the ignition portion and an upper enclosing portion provided on a side of the top plate portion at a distance from the outer circumferential surface of the ignition portion.

A gas generator including an igniter, a combustion chamber, and a restriction part, the igniter including an accommodating chamber accommodating an explosive therein, an ignition portion provided in the accommodating chamber, and a separating part including a pressure receiving surface, the separating part being configured to be separable from the igniter and movable in a predetermined direction, the combustion chamber being configured to burn a gas generating agent filled outside the accommodating chamber, by the combustion of the explosive, the restriction part provided in a predetermined position in the predetermined direction from the igniter and restricting a movement of the separating part, and the separating part including a guide that directs the combustion product of the explosive by the pressure receiving surface toward the igniter, in a state where the movement of the separating part in the predetermined direction is restricted by the restriction part.

According to an embodiment of the present invention, provided is a closing structure of a pressure-resistant container in which an opening of a metallic cylindrical container is closed by a metallic closing member, the closing member including a closing part, the closing part including a first surface, a second surface on an opposite side to the first surface in a thickness direction, and a circumferential surface part between the first surface and the second surface, and having a same shape as that of the opening and having a size enabling insertion thereof into the opening. The closing structure includes: the closing member that is inserted to be at an inside of the opening of the cylindrical container, with the second surface facing inside of the cylindrical container; an annular deformed part that is deformed, with a peripheral wall part on the opening of the cylindrical container abutting against the first surface of the closing part of the closing member and a first annular corner part at a boundary between the first surface and the circumferential surface part; and a welded part where a contact portion between the first annular corner part of the closing part of the closing member and the annular deformed part is welded from outside.

This invention concerns a tubular element for a gas pressure vessel of an airbag module, in particular of a vehicle, wherein the tubular element (1) consists of high-strength steel, has a first and a second end (17, 18) and from the first end (17) to the second end (18) the tubular element (1) has an undeformed section (11), a transition section (12) and a tapering section (13) and on the tapering section (13) at least one radially outwardly extending collar (14) is formed, characterized in that the collar (14) is separated from the transition section (12) by a first length section (130) having an outer diameter (A1) smaller than the outer diameter (A2) of the collar (14) and the wall thickness of the collar (14) is greater than the wall thickness of the first length section (130). Furthermore, the invention concerns a gas pressure vessel and a process for manufacturing a tubular element according to the invention (1).

A gas generator includes an igniter, a cup-shaped member, and a fixing member. The cup-shaped member accommodating an enhancer agent bursts or melts at the time of activation. The fixing member fixing a filter does not burst and melt even at the time of activation. Ra and Ha satisfy a condition of Ra/Ha 1.00 where Ra represents an inner diameter of a sidewall portion of the cup-shaped member and Ha represents a distance between a top wall portion of the cup-shaped member and the igniter. The sidewall portion includes a first region surrounded by a partition wall portion of the fixing member and a second region not surrounded by the partition wall portion. The partition wall portion has an end portion arranged closer to a top plate portion than the igniter. A gas generating agent is arranged to face the top wall portion, the second region, and the partition wall portion.

The invention relates to a gas generator (10), particularly a pyrotechnical tube gas generator, with an axial longitudinal direction (L), comprising an ignition unit (20), a combustion chamber (30) axially mounted downstream from the ignition unit (20) and comprising a combustion chamber bottom (35) forming a combustion chamber outlet (36), and a filter chamber (70) that is axially mounted downstream of the combustion chamber (30). According to the invention, at least one guiding sleeve (50) and a front-side baffle plate (80) are formed in the filter chamber, a first end (51) of the guiding sleeve (50), on the side of the combustion chamber, being axially mounted downstream from the combustion chamber bottom (35), and a second end (53) of the guiding sleeve (50) being associated with the baffle plate (80), a first deflection section being formed on the baffle plate (80) and the guiding sleeve (50) which allows a gas flow to an outer side of the guiding sleeve (50) into an annular first discharge chamber (75).

A gas generator assembly for an airbag module of a motor vehicle, including a generator housing with a first housing part and a second housing part, a combustion space formed in the generator housing for accommodating a pyrotechnic charge from which a gas for inflating a gas bag of the airbag module can be generated by combustion. At least one outlet opening is provided in the generator housing through which gas generated in the combustion space can be released for inflating the gas bag. At least one filter unit is arranged in the generator housing for filtering the gas generated from the pyrotechnic charge. The assembly includes a guide element arranged in the generator housing, by means of which the generated gas is guided to the at least one outflow opening. The guide element is of tubular form and has at least one deformation area.

A retainer and an inflator are disposed inside the airbag. The retainer includes a mounting base section, a holding section which extends from the mounting base section and receives and holds an inflator therein, and a second mounting means which protrudes from the mounting base perpendicularly. The inflator includes a cylindrical body provided with a gas release section and, a first mounting means protruding from a region of the body disposed outside the airbag. The retainer further includes a storing dent section which receives the first mounting means of the inflator so as to conform an orientation of the first means to that of the second mounting means and, a pressing section disposed proximate the storing dent section. The pressing section is brought into close contact with a circumferential area of the body of the inflator when the first mounting means of the inflator is secured to a vehicle body.

The invention relates, among other things, to a gas generator for generating a driving gas for a vehicle safety device, wherein the gas generator comprises: an ignition device; fuel which, after ignition using the ignition device, generates the driving gas; an at least partially tubular carrier element, in the tube interior of which a combustion chamber for the fuel is located; an injection-moulded body which fixes the ignition device in the connection hole and is located with an inner portion inside the carrier element and with an outer portion outside the carrier element; a feed pipe which is connected to a pipe end of the carrier element and which conveys the driving gas out of the combustion chamber; and a lid sealing the combustion chamber.