An inflator-based system provides for the actuation of valves and other devices using automotive air bag inflators, for example. One or more inflators can be connected to a valve body with an adapter such that upon inflator activation, inflator gases can act on a piston or similar device to achieve desired movement or operation of the valve or device. An inflator-based actuator can provide for a single action or multiple actions of a valve or other device. Such a system can provide safer and more reliable alternatives to electro-explosive ordnance devices found in pyrovalves, for example. Other uses for an inflator-based actuation system can include a lanyard pull initiator, a dual cartridge cutter, a bolt cutter, a hot gas generator (HGG) body, and a HGG pressure cartridge, to name a few examples.

An inflator-based system provides for the actuation of valves and other devices using automotive air bag inflators, for example. One or more inflators can be connected to a valve body with an adapter such that upon inflator activation, inflator gases can act on a piston or similar device to achieve desired movement or operation of the valve or device. An inflator-based actuator can provide for a single action or multiple actions of a valve or other device. Such a system can provide safer and more reliable alternatives to electro-explosive ordnance devices found in pyrovalves, for example. Other uses for an inflator-based actuation system can include a lanyard pull initiator, a dual cartridge cutter, a bolt cutter, a hot gas generator (HGG) body, and a HGG pressure cartridge, to name a few examples.

Gas generator comprising: a chamber with an outlet port, breakable sealing means. pressurized gas stored in the chamber, an insert nozzle positioned in the chamber, comprising at least three intermediate orifices and positioned between the gas outlet and at least some of the pressurized gas, characterized in that the insert nozzle is arranged to deform after the breakable sealing means are ruptured, during the application of a pressure difference between a downstream face and an upstream face of the insert nozzle exerted by said at least some of the pressurized gas.

Gas generator comprising: a chamber with an outlet port, breakable sealing means. pressurized gas stored in the chamber, an insert nozzle positioned in the chamber, comprising at least three intermediate orifices and positioned between the gas outlet and at least some of the pressurized gas, characterized in that the insert nozzle is arranged to deform after the breakable sealing means are ruptured, during the application of a pressure difference between a downstream face and an upstream face of the insert nozzle exerted by said at least some of the pressurized gas.

Gas generator comprising: a first chamber having first pressurized gases and a first outlet port, a second chamber with second pressurized gases and a second outlet port, a diffusion zone, arranged to receive and diffuse towards an airbag the first pressurized gases and the second pressurized gases, wherein the first pressurized gases and the second pressurized gases are arranged to react together once they are mixed, characterized in that the gas generator comprises at least one deflector arranged to impose on the first pressurized gases a first discharge trajectory in the separate diffusion zone of a second discharge trajectory of the second pressurized gases.

Gas generator comprising: a first chamber having first pressurized gases and a first outlet port, a second chamber with second pressurized gases and a second outlet port, a diffusion zone, arranged to receive and diffuse towards an airbag the first pressurized gases and the second pressurized gases, wherein the first pressurized gases and the second pressurized gases are arranged to react together once they are mixed, characterized in that the gas generator comprises at least one deflector arranged to impose on the first pressurized gases a first discharge trajectory in the separate diffusion zone of a second discharge trajectory of the second pressurized gases.

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 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 propellant cage (10) for an inflator, especially for a tubular inflator of an airbag module, comprising a substantially tubular base (11) which forms, on the one hand, a gas inlet opening (12a) and, on the other hand, a gas outlet opening (12b) along its longitudinal axis (L), wherein at least one lateral gas flow opening (13) is configured in a circumferential wall (12) of the base (11), wherein the base (11) includes a radially outwardly extending collar (11c) having at least one frontal gas flow opening (14) in the area of the gas flow opening (12c).

An improved high-pressure gas cylinder is provided, which includes a container and a plug. The container has an air passage which communicates an interior of the container with an exterior of the container. The plug includes a body and a sealing sheet, wherein the body is fixed in the air passage. The body has a hole which communicates with the interior of the container, and the sealing sheet covers the hole. The body and the sealing sheet are integral. Whereby, the plug is able to tightly seal the container to reduce the possibility of wasting gas; additionally, the manufacturing process would be less complicated and efficient with the simplified plug.