A gas generator including a diffuser for diffusing inflation gases generated by an inflator of the gas generator. The gas generator includes at least a first mounting stud. The diffuser has a cylindrical sidewall axially extending between first and second axial ends and circumferentially extending between first and second axially extending sides. A gap is defined between the first and second axially extending sides. The cylindrical sidewall includes a plurality of holes radially extend therethrough and includes a slot having a closed end and an open end. The diffuser circumferentially surrounds a portion of the cylindrical housing of the inflator with the first mounting stud disposed in the slot.

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.

A gas generator includes a housing, a combustion chamber accommodating therein a gas generating agent burned by an ignition device, a plurality of gas discharge ports provided to a wall surface that defines the combustion chamber, and communicating an inside and an outside of the combustion chamber, and a plurality of closing members respectively closing the plurality of gas discharge ports. Each of the plurality of closing members includes a covering region covering a corresponding gas discharge port of the plurality of gas discharge ports, and a joining region being joined to the wall surface of the housing, and formed adjacent to and surrounding the covering region. The joining region of each of the plurality of closing members is joined to the wall surface at a width within a range from 1 mm to 5 mm, inclusive, from a peripheral edge of the corresponding gas discharge port, and without interfering with another joining region.

A gas generator includes a housing constructed by combining and joining a plurality of shell members. One of the plurality of shell members includes a cylindrical portion and a flange portion. The cylindrical portion is provided with a plurality of gas discharge openings including gas discharge openings different in opening area from one another. The flange portion is shaped such that a distance from an axial line of the cylindrical portion to an outer edge of the flange portion is non-uniform. When a perpendicular line is drawn to the axial line from a maximum outer geometry position in the outer edge of the flange portion most distant from the axial line, a gas discharge opening arranged closest to the perpendicular line is a gas discharge opening other than a gas discharge opening largest in opening area among the plurality of gas discharge openings.

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.

The invention relates to a housing of a gas generator module for an airbag system of a motor vehicle, wherein the housing is of substantially tubular design and has a tube portion in which a plurality of stamped formations pointing into the interior of the housing are introduced over an external circumference of the housing, wherein the stamped formations in the interior of the tube portion have a stop for an internal component.

A gas generator including a diffuser for diffusing inflation gases generated by an inflator of the gas generator. The gas generator includes at least a first mounting stud. The diffuser has a cylindrical sidewall axially extending between first and second axial ends and circumferentially extending between first and second axially extending sides. A gap is defined between the first and second axially extending sides. The cylindrical sidewall includes a plurality of holes radially extend therethrough and includes a slot having a closed end and an open end. The diffuser circumferentially surrounds a portion of the cylindrical housing of the inflator with the first mounting stud disposed in the slot.

A gas generator includes an elongated cylindrical housing main body and a plug which closes an axial end portion of the housing main body. The plug made of a metal includes a substantially columnar body portion, a first flange portion located on a side of a first end surface, and a second flange portion located on a side of a second end surface. An annular groove portion defined by the body portion, the first flange portion, and the second flange portion is located in a circumferential surface of the plug. A metal flow in a portion which appears in a surface layer of the circumferential surface of the plug including a surface of the annular groove portion continuously extends to reach the second end surface from the first end surface along the circumferential surface without discontinuity in the circumferential surface.

The present invention provides a gas generator including: a housing including a top plate, a bottom plate axially opposite to the top plate, and a circumferential wall located between the top plate and the bottom plate and provided with a gas discharge port; a partition wall having a single connection hole and a second communication hole, the partition wall being radially disposed in the housing to partition an interior of the housing into a first combustion chamber on the side of the top plate, which accommodates a first gas generating agent, and a second combustion chamber on the side of the bottom plate, which accommodates a second gas generating agent; an inner cylindrical member disposed in the housing to enclose the first igniter attached to the bottom plate, such that a second end opening side thereof passes through the connection hole in the partition wall in order to be located within the first combustion chamber, closer to the top plate than the partition wall is, and to be spaced from the top plate; the second end opening being closed by a first closing member and the second communication hole being closed by a second closing member; and the gas generating agent also being provided between the top plate and the second end opening closed by the first closing member.

A gas generator includes a housing constructed by combining and joining a plurality of shell members. One of the plurality of shell members includes a cylindrical portion and a flange portion. The cylindrical portion is provided with a plurality of gas discharge openings including gas discharge openings different in opening area from one another. The flange portion is shaped such that a distance from an axial line of the cylindrical portion to an outer edge of the flange portion is non-uniform. When a perpendicular line is drawn to the axial line from a maximum outer geometry position in the outer edge of the flange portion most distant from the axial line, a gas discharge opening arranged closest to the perpendicular line is a gas discharge opening other than a gas discharge opening largest in opening area among the plurality of gas discharge openings.