Abstract: Low-profile igniter assemblies adapted for use with low-profile inflators as well as conventionally sized inflators are disclosed. Such igniter assemblies can comprise an adaptor, an ignition portion and a plurality of conductors coupled to the ignition portion and extending in a first direction from the ignition portion to an opening of the adapter. A connector is adapted to be slid into the opening in a second direction which is transverse to the first direction associated with the extension of the conductors from the ignition portion to the opening of the adapter. Igniter assemblies can be coupled with a body of an inflatable airbag system inflator, which inflator body may enclose a quantity of gas generant. Methods of making inflators adapted for use with inflatable airbag cushion systems are also included.

Abstract: A gas generator (1A) includes a lower shell (10), an upper shell (20), a holding portion (30), an igniter (40), an enhancer cup (46), and a filter (70). The lower shell (10) is made of a press-formed product formed by press-working one plate-shaped member made of metal, and includes a protruding cylindrical portion (13) and an opening (15) provided in the protruding cylindrical portion (13). The holding portion (13) is made of a resin-molded portion formed by attaching an insulating fluid resin material to a bottom plate portion (11) so as to reach a part of an outer surface from a part of an inner surface of the bottom plate portion (11) of the lower shell (10) through the opening (15) and solidifying the same. The enhancer cup (46) is held by the holding portion (30) as an locking protruding portion (46a) provided in the enhancer cup (46) is locked to a locking recess portion (36a) provided in the holding portion (30).

Abstract: An inflator (30) comprises at least one combustion chamber (34), filled with a plurality of solid propellant pellets (10), each of the solid propellant pellets (10) including a surface having a breaking point (19) which is delimited at least by two converging surfaces (28) produced by pressing. A method of manufacturing solid propellant pellets (10), includes the steps of providing a solid propellant (12), pressing the solid propellant (12) into a pellet blank (16), the pellet blank (16) having at least one predetermined breaking point (18) which divides the pellet blank (16) into at least two subareas (20), and breaking the pellet blank (16) along the at least one predetermined breaking point (18), wherein each of the at least two subareas (20) forms a solid propellant pellet (10).

Abstract: A pyrotechnic actuator for an active bonnet is provided that includes, but is not limited to a cylinder, a piston which can be displaced in the cylinder under the influence of a propellant gas and a first gas generator for producing the propellant gas. The actuator includes, but is not limited to at least one further gas generator, which can be ignited independently of the first gas generator.

Abstract: The present invention provides a gas generator including a metallic housing, an ignition device including an igniter assembly, and gas generating agent, the igniter assembly including an igniter main body fixed to a metallic cylindrical fixing member with a resin and a connector-connecting portion for fitting a connector, at least part of the metallic cylindrical fixing member being electro-conductive to the housing, and including an exposed portion exposed to an inner surface of the connector-connecting portion, the exposed portion of the metallic cylindrical fixing member serving as a ground terminal, when the connector is connected to the connector-connecting portion, the ground terminal being in contact with an earth terminal of the connector, a grounding lead wire of the connector being grounded to a ground circuit located outside the gas generator.

Abstract: A gas generator includes, a housing integrated at upper and lower circumferential wall plates, an ignition device chamber defined by a cup-shaped container disposed at a bottom plate of the housing, a combustion chamber surrounding the ignition device chamber, an annular filter disposed to face a top plate of the housing, a retainer supporting the annular filter, the retainer including, an annular bottom surface supporting a lower surface of the filter and a cylindrical wall surface press-fitted to a circumferential wall plate of the housing, a circumferential wall of the cup-shaped container in the vicinity of the bottom surface abutting or positioned close to an inner circumferential surface of the annular filter. During activation, when the housing deforms, the retainer and annular filter move such that the annular filter gas-tightly attaches to the top plate of the diffuser shell. A combustion gas is discharged radially through the annular filter.

Abstract: The invention relates to a propellant pellet for pyrotechnical safety devices in vehicles, such as airbag modules, belt tensioners, micro-inflators and igniters. The propellant pellet according to the invention has a substantially cylindrical shape and can be obtained by dry injection of a powdered propellant composition. The pellets have a maximum diameter of 2 mm and preferably a relative bulk density, defined as ratio of bulk density of the propellant pellets to the maximum theoretical density of the propellant composition, of at least 0.5. A propellant charge, an igniter and an inflator each comprising a plurality of said propellant pellets are provided.

Abstract: A gas generator includes, a housing comprising circumferential wall plates of a diffuser shell and a closure shell, an ignition device chamber, a combustion chamber surrounding the ignition device chamber and containing a gas generating agent, an annular or flat-plate filter disposed facing the top plate and spaced from the circumferential wall plate, a first support including a disk-shaped portion abutting against and supporting an upper surface of the filter, including communication holes only at a section in contact with the filter, a second support including an annular flat portion abutting against and supporting a lower surface of the filter and cylindrical wall portion fixed to the housing. A gap is formed between the top plate of the housing and the circumferential wall plate and the first support member, when a pressure inside the combustion chamber increases due to combustion and the top plate is deformed.

Abstract: A gas generator includes a diffuser shell and a closure shell, a housing formed by joining the diffuser shell and the closure shell, inside the housing, an ignition device chamber defined by a cup-shaped container, a combustion chamber enclosing the ignition device chamber, an annular or flat plate-shaped filter facing the top plate, a retainer supporting the filter, the retainer including a bottom surface and a cylindrical wall surface extending from an outer circumferential edge of the bottom surface, the cylindrical wall surface having a gas passage, the retainer being fixed by the cylindrical wall against a circumferential wall plate. During actuation, when the housing is deformed the retainer and the filter move to abut the top plate of the diffuser shell, combustion gas passes through the filter and the gas passage to be discharged from the gas discharge port.

Abstract: A hybrid gas generator includes a high pressure gas cylinder and a gas release actuating device. The gas release actuating device includes a pyrotechnic gas cylinder, an igniting assembly, and a bursting disc. The pyrotechnic gas cylinder includes a guide ring securely disposed in the pyrotechnic gas cylinder to hermetically separate the space in the pyrotechnic gas cylinder into a gas releasing chamber and a firing chamber, a piercing plug fitted with the guide ring, where the gas releasing chamber is formed with at least a vent for releasing the gas stored in the high pressure gas cylinder, and the firing chamber may be provided with a gas producing medium to produce gas for driving the piercing plug when the igniting assembly is ignited.

Abstract: An inflator device for a passive restraint device, such as an airbag, and methods of inflating an airbag. In certain aspects, an initiator device is provided in a housing. The initiator device includes at least one chemical hydride compound. Upon initiator actuation, an enhanced shock wave generated by the initiator device opens a temporary closure between the inflator housing and the downstream airbag to permit gases to flow into the airbag. Released hydrogen reacts with oxygen from a stored pressurized gas, and combustion products of the initiator device flow into the airbag for rapid inflation.

Abstract: A gas generator includes a holder made of metal having assembled thereto a cup filled with a gas generating agent and an igniter for burning the gas generating agent. The holder includes a body part, and an igniter fixing engagement part and a cup fixing engagement part projecting from the body part. These engagement parts are bent, so that the igniter and the cup are fixed by crimping to the holder. The engagement parts are both finish shaped by forging processing. A metal flow appearing in superficial layers of the engagement parts extends continuously from the body part through the engagement parts to return to the body part, without being divided in surfaces of the engagement parts.

Abstract: A solid propellant compact (10) in the form of a compact made of a powdered and/or granulated solid propellant, especially for inflators and/or actuators of a vehicle occupant restraint system, includes at least one recess on at least one of its sides. Solid propellant compacts (10) of this type are provided in an inflator (14) comprising at least one combustion chamber. A module includes such inflator (14) with an airbag inflatable by the inflator (14). A pyrotechnical drive unit (30) comprising a housing (32), a piston (34) movable in the housing (32) includes solid propellant compacts (10) of this type.

Abstract: A gas generator includes, an igniter having an ignition portion and a conductive pin a collar holding the igniter, a metallic cup-shaped case fixed to the collar and having a fragile portion. The collar includes a metallic portion and a resin part enclosing the ignition portion. An outer diameter of the metallic portion is larger than an outer diameter of the resin part. The cup-shaped case has an annular portion bent inward at an opening thereof. The annular bent portion includes a bent corner, an annular tilted surface, and an annular terminal end. The annular tilted surface includes an outer tilted surface facing toward a side of a peripheral surface of the cup-shaped case and an inner annular tilted surface facing the opposite side. The inner annular tilted surface of the annular bent portion presses against the resin portion.

Abstract: A gas generating system usable in an inflatable vehicle occupant protection system is provided. The system includes an outer housing having an outer diameter varying within a range of approximately 16 millimeters to approximately 20 millimeters. A vehicle occupant protection system and an airbag module including the gas generating system are also provided.

Abstract: An inflator for producing inflation gas from a propellant has a housing for storing the propellant, a diffuser for attachment to the inflator housing and a sealing member. The diffuser has one or more open passages for passing inflation gas upon ignition of the propellant and a plurality of sealed passages oriented opposite to the one or more open passages. The sealing member covers the sealed passages. The sealing member is consumed when exposed to an open flame thereby opening the sealed passages to vent inflation gases opposite the opposed one or more open passages to create a thrust neutral exhaust upon an inadvertent ignition of the propellant due to exposure to fire.

Abstract: An explosion-driven setting tool includes a setting mechanism (12) driven by a propellant (23), an ignition unit (18) for igniting the propellant (23), a receptacle (15) for receiving a propellant holder (20), a data communication interface (31) for receiving and transmitting data of the propellant holder (20), and a data processing unit (30) for receiving data transmitted by the data communication interface (31) and connected with a display (50) for displaying the propellant supply level (27) of the propellant (23) in the propellant holder having a housing (21) with an interior space (22) for receiving the propellant (23), and a data storage identification unit (40) in which the propellant supply level (27) is stored for being read-out.

Abstract: A gas generator includes, a tubular housing including, on a circumferential surface thereof, first and second gas discharge port groups, the second gas discharge port group being separated axially from the first gas discharge port group, both being closed by a seal member, a first closing member having an ignition device and a second closing member, closing one end and the other end of the tubular housing, respectively, opening pressures P1 and P2 for opening the first and second gas discharge port groups, satisfying a relationship P1<P2, the first gas discharge port group being positioned at a center portion in the axial direction of the tubular housing or in the vicinity thereof, and the second gas discharge port group being positioned at a center portion between the first gas discharge port group and the second closing member or in the vicinity thereof, respectively.

Abstract: A gas generator includes a housing having a gas discharge port, a combustion chamber cup member disposed, in the housing, such that an opening portion thereof covers a bottom surface of the housing, the combustion chamber cup member having a communication hole at least a portion of its peripheral wall surface thereof, a metallic cover member covering the peripheral wall surface provided with the communication hole, and a combustion chamber being formed inside the combustion chamber cup member and accommodating a gas generating agent and an igniter therein, at the time of activation, the cover member expanding and deforming mainly in the radial direction to form a gap between the peripheral wall surface of the combustion cup member and the metallic cover member, which serves as a gas channel leading to the combustion chamber and the outside of the combustion chamber.

Abstract: The present application provides a gas generator including: a cylindrical housing with a gas discharge port, one end of the tubular housing being closed by a closing member including a disk-shaped main body portion, an annular projection portion and the peripheral surface of the annular projection portion, a transfer charge chamber housing defining a transfer charge chamber charged with a transfer charge and being attached to the closing member, the transfer charge chamber housing having a cup-like shape including a flame-transferring hole at a bottom surface, a flange portion and a annular wall surface extending in the axial direction of the housing from the flange portion, being mounted such that the annular wall surface thereof is fitted into an annular groove, and being fixed by the flange portion pressed in the axial direction by a supporting member and a sealing member disposed in a remaining space of the annular groove and sealing between the tubular housing and the closing member.

Abstract: The subject of the present invention is a pyrotechnic method for generating gas at two successive flow rates—a first flow rate then a second flow rate, said first flow rate being higher than said second flow rate—which comprises: the combustion of a first pyrotechnic charge (10) in a first combustion chamber (1) discharging into a second combustion chamber (2) via at least one nozzle (3); and the combustion of a second pyrotechnic charge (20) in said second combustion chamber (2) discharging to the outside via at least one vent (21). Characteristically, said first chamber (1) operates at high pressure and said second chamber (2) operates at low pressure. Another subject of the invention is a pyrotechnic gas generator suitable for the implementation of said method. The invention is most particularly applicable in the context of side protection airbags (“curtain airbags”), used in automobile safety.

Abstract: The present invention discloses a hybrid inflator of an airbag. The hybrid inflator of the airbag includes a main casing, a central channel, a vent tube, a rupture disc, an inner cover group, an igniter group, a first buffering pad, a second buffering pad and a diffuser. The main casing includes a bottom housing and an upper housing. The central channel is fixed with the bottom housing and passed through the upper housing. A convective hole is disposed on the central channel. The vent tube is covered onto the external central channel and has a throttle bore thereon. The first buffering pad is disposed on a bottom of the inter air chamber. The second buffering pad is disposed in the inner air chamber to separate a space for propellant. The diffuser is correspondingly covered and fixed on the main casing.

Abstract: A gas generating system is provided including a first housing formed from a polymeric material, and a pyrotechnic gas generant material contained in the first housing. The first housing forms a combustion chamber for the gas generant. An airbag system and a vehicle occupant protection system, each incorporating a gas generating system as described herein, are also disclosed.

Abstract: An apparatus (12) includes a primary housing (20) constructed from sheet metal by stamping, a primary inflation fluid source (100), a secondary housing (70) constructed from sheet metal by stamping, and a secondary inflation fluid source (200). The primary inflation fluid source (100) is located in the primary housing (20) and is actuatable to effect a primary flow of inflation fluid out of the primary housing to inflate the inflatable device (14). The secondary housing (70) is disposed within the primary housing (20). The secondary inflation fluid source (200) is located in the secondary housing (70) and is actuatable to affect a secondary flow of inflation fluid to supplement the primary flow of inflation fluid. The secondary housing (70) has a first portion (77) that moves at least partially out of engagement with a second portion (74) of the secondary housing (70) when the secondary inflation fluid source is actuated.

Abstract: An inflator for producing inflation gas from a propellant has a housing for storing the propellant, a diffuser for attachment to the inflator housing and a sealing member. The diffuser has one or more open passages for passing inflation gas upon ignition of the propellant and a plurality of sealed passages oriented opposite to the one or more open passages. The sealing member covers the sealed passages. The sealing member is consumed when exposed to an open flame thereby opening the sealed passages to vent inflation gases opposite the opposed one or more open passages to create a thrust neutral exhaust upon an inadvertent ignition of the propellant due to exposure to fire.

Abstract: The present invention provides a gas generator including: an igniter, a collar for holding the igniter, and a cup-shaped case fixed to the collar and charged inside with gas generating agent, the collar formed by a combination of a metallic portion and a resin portion which is integrated with the metallic portion, the collar being provided with an annular groove formed in an outer peripheral surface thereof, the cup-shaped case and the collar being fixed by fitting a bent portion, which is obtained by bending inward an end portion in an opening side of the cup-shaped case, to the annular groove, an annular space being formed by an inner wall surface of the bent portion and the collar, and being in communication with an inside of the cup-shaped case.

Abstract: The present invention provides a gas generator for a restraining device, including: a housing formed by a diffuser shell having a gas discharge port and a closure shell, an ignition device chamber in which an ignition device is accommodated, and a combustion chamber in which a gas generating agent is accommodated, being defined inside the housing, the ignition device chamber being defined inside an inner tube disposed in the housing, and the combustion chamber being defined outside the inner tube, the inner tube including, openings on both ends being fixed to a bottom surface and a top surface of the housing, a flame-transferring hole being formed in a circumferential wall portion to communicate the ignition device chamber with the combustion chamber, and a reduced strength portion being provided in the circumferential wall portion between the flame-transferring hole and the top surface of the housing.

Abstract: A gas generator includes: a housing having closure and diffuser shells; an inner tube member accommodating an igniter, an opening end of the inner tube member being located opposing a bottom plate of the closure shell and defining a ventilating portion formed at the opening end, the inner tube member being fixed to an igniter attaching portion, and having a cylindrical portion projecting inwardly in the closure shell, and a passage being formed between the inner tube member and the igniter attaching portion to reach the ventilating portion; an outer circumference cylindrical member provided in the combustion chamber and one end opening thereof being located at the bottom plate; and an annular porous member defining a space above the combustion chamber, the space being communicated to a gas discharge path defined between the outer circumference cylindrical member and a side surface of the diffuser shell through a communicating portion.

Abstract: A gas generator, includes: a housing having closure shell, a diffuser shell including a gas discharge ports, and a flange portion; an inner tube member defining a combustion chamber in an outside thereof for accommodating a gas generating agent, the igniter being attached to the closure shell such that the igniter projects inside from a hole formed in the bottom plate of the closure shell, the annular porous member having a plurality of holes which are smaller than the size of the gas generator, defining a space above the combustion chamber, a total opening area (A1) of the gas discharge ports being smaller than a total opening area (A2) of a gas pathway extending from the combustion chamber to the gas discharge ports (A1<A2), and the space and the gas discharge path being communicated with each other by a communicating portion.

Abstract: A gas generating system includes a first enclosure containing a gas, and a second enclosure having a gas generant material contained therein. The second enclosure is operatively coupled to the first enclosure so as to enable fluid communication between the first enclosure and the second enclosure. After activation of the gas generating system, the gas in the first enclosure passes through the second enclosure prior to exiting the system.

Abstract: A vehicle safety system includes a module including an airbag and an inflator. The inflator includes a housing (12) in which a combustion chamber (16) containing a pyrotechnic propellant is arranged in which hot gas is generated and which housing includes at least one escape orifice (22) toward the environment of the inflator (10), as well as a coolant reservoir (24) arranged in the housing (12) in which coolant is accommodated prior to activation of the inflator (10) and which has at least one coolant outlet orifice (28?). The coolant outlet orifice (28) is arranged in direct vicinity of the outlet orifice (22). Upon activation of the inflator (10) coolant flows out of the inflator into the protection system and wets an adjacent wall (32) of the protection system against which also the hot gas is flowing.

Abstract: A gas generator assembly and method of operation. A plurality of stacks of laterally adjacent and laterally and axially supported gas generant wafers are contained within a housing. An igniter material is placed between the wafer stacks and an initiator. Upon ignition of the igniter material by the initiator, the wafer stacks are ignited and combust, generating a gas which, when reaching sufficient pressure within the housing in excess of ambient exterior pressures, opens a closed exhaust gas port and is released into a gas discharge structure where the gas passes through a heat sink material, cooling the gas before it exits the gas discharge structure for an intended use.

Abstract: Embodiments of the present invention provide an airbag system formed of a plurality of tubular structures.

Abstract: A gas generator includes an initiator having a case, two electrodes and a cap having a wall delimiting an aperture for insertion of the case, a part delimiting an aperture for access to the electrodes and a retaining part made of plastic material overmoulded into the aperture between the initiator, the cap and the part. The wall includes, near the aperture and the protrusion retaining the cap, a second protrusion for supporting the mould in a support direction having a component extending from the bottom toward the aperture, the second protrusion having an outer edge at least partially not covered by the part for use as a support surface in said support direction for a mould to be used for overmoulding.

Abstract: A disc inflator having gas cooling and mist removal functions, and reduced in weight and in size in a radial direction. An inflator case (40) has an upper case (36) at an occupant side and a lower case (38) at a side opposite an occupant. A tubular holding member (60) having a separation wall (64) at a base portion thereof is provided in the inflator case. A gas flow path (74) is formed at a periphery of the holding member (60), and communication holes (80) communicating with the gas flow path (74) are formed in the separation wall (64). At a peripheral wall portion (36B) of the upper case (36) is formed a gas ejection hole (76) at a position offset towards an occupant side only by a distance ? from a central position P of a combustion chamber (68). Accordingly, a length (L1) of a flow path from the starting end of the flow path to the gas ejection hole (76) increases, enabling effective heat exchange of a high temperature gas and removal of mist (82). Thereby, a conventionally used filter may be disposed of.

Abstract: A generator includes a tubular casing sealed by a bottom, with a wall crossed by discharge orifices. The generator further includes an adapter sleeve retained in the tubular casing by crimping, a pyrotechnic initiator, and a tubular filter covering the discharge orifices. A pyrotechnic charge is inserted between the adapter sleeve and the bottom. A charge securing arrangement includes, on the bottom side, a transverse partition, and on the open side, an open-worked washer urged towards the bottom. A sealing member is capable of breaking during combustion of the charge, to thereby allow the gases to escape out of the casing via the filter and the discharge orifices. After failure of the sealing member, the space occupied by the pyrotechnic charge is delimited axially by the open-worked washer and the bottom.

Abstract: A gas generator contains a housing containing an end closure assembly. An annular end closure is fixed within an annular igniter retainer thereby forming an annular wall for retention of an associated igniter. A first base portion of the annular end closure, and a second base portion of the annular igniter retainer are fixed together, by projection-welding for example, thereby facilitating a cost-effective seal about the igniter when assembled therewith.

Abstract: Methods of forming energetic compositions include forming a premix comprising a nitrate ester, a polymer, and a stabilizer, and combining solids with the premix. Additional stabilizer may be added with the solids and may remain in a crystalline state. Some methods include dissolving a stabilizer in at least one of a plurality of nitrate esters. Energetic compositions include a continuous matrix and a stabilizer. The continuous matrix includes a nitrate ester and surrounds a solid energetic material. Some compositions include a first nitrate ester, a second nitrate ester having a decomposition rate lower than the first nitrate ester, and a stabilizer. An article includes a housing and an energetic composition in the housing.

Abstract: A device for inflating an at least two-layered air bag folded to form an inflatable belt for a safety system of a motor vehicle equipped with a gas generator is provided. The gas stream generated by the gas generator is directed onto the air bag from the outside and the gas stream produces an opening in at least one of the layers of the air bag in a physical process.

Abstract: A gas generator includes, a housing having a defining a first combustion chamber, an ignition chamber cup, defining an ignition chamber, and a combustion chamber cup, defining a second combustion chamber, being aligned at a distance in a radial direction, a first communication hole communicating the ignition chamber with the first combustion chamber being provided in a circumferential wall portion of the ignition chamber cup, a second communication hole communicating the second combustion chamber with the first combustion chamber being provided in a circumferential wall portion of the combustion chamber cup, a cup-shaped cover member covering the combustion chamber cup and closing the second communication hole, a disk-shaped retainer retaining a gas generating agent, being provided with a first opening for fitting the ignition chamber cup and a second opening for fitting the combustion chamber cup, an annular gap being formed between the second opening and the cover member.

Abstract: A base assembly for a gas generating system is provided. The base assembly includes a base and a retainer affixed to the base. In an alternative embodiment, the assembly includes an initiator molded to both the base and the retainer.

Abstract: A gas generator has two pyrotechnic charges in two chambers having openings for gas outlet to the outside. Only the first chamber is provided with an igniter for first charge. The chambers are separated by a third wall with a through hole for permanent gas communication, sealed in an initial state by a cap. The cap is configured to be broken under the pressure of the combustion gases from first charge to keep the hole opened permanently and allow the combustion gases from the first charge to go via the hole kept permanently opened from a first chamber to a second chamber, where these gases induce the combustion of charge.

Abstract: An auto/manual gas inflator incorporating a gas cylinder and an auto cap. A first indication mechanism is provided for indicating the status of the gas cylinder which is visible through a first window in the inflator housing and a second indication mechanism is provided for indicating the status of the auto cap through a second window in the inflator housing. The auto cap in one embodiment uses a dissolvable pill for automatic inflation. A manual activator, such as a lanyard assembly can be used for manual inflation. In either activation method, a pierce pin is moved upward to break the cylinder's seal and release the gas contained within the cylinder.

Abstract: An inflator has an elongate outer housing (110) which has at least one discharge opening (126) and which contains a compressed gas container (112) and an igniting unit (116) provided at a first axial end (114) of the compressed gas container (112). The igniting of said igniting unit generates a shock wave which, in a shock wave direction (S), enters the compressed gas container (112) at the first axial end thereof and which passes at least through some sections of the compressed gas container (112). The discharge opening (126) is arranged away from the first axial end of the compressed gas container (112) and is closed by a bursting membrane (128) which can be destroyed by the shock wave, wherein the bursting membrane (128) is not oriented perpendicularly to the shock wave direction (S).

Abstract: The present invention provides a gas generator including a combustion chamber formed inside a housing having a gas discharge port, a disk-shaped gas generating agent stacked and loaded or a single tubular gas generating agent loaded in the combustion chamber in the axial direction of the housing, an igniter disposed inside the combustion chamber to enclose the igniter and fixed to a bottom surface of the housing by a fixing member, the fixing member including a fixing portion for the igniter and a plurality of elastic rod-like gas generating agent support portions extending in the radial direction of the housing from the fixing portion, the gas generating agent support portions abutting against a surface of the gas generating agent opposing the bottom surface of the housing, and the gas generating agent being pressed and fixed between the gas generating agent support portions and a top surface of the housing.

Abstract: An inflator (1) comprised of an inner case (19) and an outer case (28). The inflator (1) includes a combustion chamber located inside the inner case (19), a plurality of gas discharge ports (16) formed on the outer case (28), a gas outlet port (11) formed on an outer surface of the inner case (19) and a gas guide section that guides the inflation gas exited the gas outlet port (11) toward the gas discharge ports (16). The gas guide section includes between the outer case (28) and inner case (19) a guide wall (13a) provided with a guide plane that contacts with and redirects the inflation gas. The guide plane is formed into an arc face so as to swivel the inflation gas exited the gas outlet port (11) in a swirl or helical fashion, guide the inflation gas toward the gas discharge ports (16) and capture residuals.

Abstract: A gas generator includes an outer wall delimiting a first chamber, a source of gas and a second chamber for diffusing gas outwards between which is found a nozzle. The nozzle includes a first through-hole for letting through gas from the first chamber to the second chamber. The first hole is closed by a cap capable of being opened from the triggering of an electro-pyrotechnic device located towards the first chamber. The second diffusion chamber includes in the wall at least one second through-hole for letting through gas outwards. The outer wall includes at least one overmolded plastic material around a portion of the metal nozzle.

Abstract: A gas generator includes two reserves of reactive gases, an ignition device capable of being triggered in order to open lids of the reserves and initiating combustion of the reactive gases, and an orifice for letting out combustion gas towards the outside. The gas reserve, a device for diffusing the combustion gas towards the outside and the second gas reserve are successively positioned along a longitudinal direction. A guiding wall is provided in the reserve for guiding the pressure wave generated by the device up to the lid in order to open this first lid. The diffusing device includes a conduit for guiding the pressure wave from the first lid to the second lid so as to open the latter, and which communicates with the orifice.

Abstract: A gas generating system including a housing and a divider dividing an interior of the housing into a first chamber and a second chamber. First and second tubes extend into the second chamber and end at the divider. At least one opening is formed in the divider to enable fluid communication of the first chamber with an interior of only the first tube after activation of the gas generating system.

Abstract: The invention provides a gas generator for a restraining apparatus, including: a housing an ignition device, and a gas generating agent accommodated in the housing, and a cup-shaped container having a flame-transferring hole in a circumferential wall and being disposed on a tubular igniter-fixing portion of the housing to form an ignition device chamber accommodating the ignition device, the cup-shaped container having a plurality of protruding portions protruding inward in the radial direction from the circumferential wall portion, the tubular igniter-fixing portion having a recess on an outer surface, at least a distal end portion of the protruding portion engaging with an inner wall surface of the recess to block an axial movement of the cup-shaped container.