Gas generant composition and molded article thereof, and gas generator using the molded article

The present invention relates to a gas generant composition that has a high ignitability and combustibility and is capable of quickly responding to an electrical signal for starting combustion, and particularly to a gas generant composition comprising a nitrogen-containing organic compound as a fuel component (A), a metal nitrate and/or a basic metal nitrate (B-1) and a perchlorate (B-2) having a 50 percent particle diameter from 1 to 50 μm as an oxidant component (B), the content of the perchlorate (B-2) in the total mass of the oxidant component (B) is 5 mass percent or more and less than 35 mass percent.

GAS GENERATOR AND MANUFACTURING PROCESS THEREOF

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. 112-. (canceled)13. A gas generator comprising:an electropyrotechnic initiator; andan assembly containing a gas generator for releasing at least one gas following ignition of the electropyrotechnic initiator;the initiator includes a case containing a pyrotechnic charge of the initiator and two electrodes jutting out outwards from the case for electrically controlling the ignition of the pyrotechnic charge of the initiator, the initiator further including a cap which caps the case on a gas generating side, the gas generator further includes a determined portion delimiting a first aperture for accessing the electrodes of the initiator from the outside and a retaining part obtained by overmoulding plastic material in the first aperture between the initiator, the cap and the determined portion, the retaining part for retaining the initiator and holding the initiator in position relatively to the determined portion, the electrodes crossing outwards the first aperture and the retaining part, the cap including a bottom integral with a side wall delimiting a second aperture into which the case is inserted, the wall having an outer protrusion used for retaining the cap in a corresponding recess of the retaining part, wherein a side wall of the cap includes, in proximity to ...

Gas Generating System

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. 1. A gas generating system comprising:a first housing defining an interior;a second housing having at least a portion of the first housing positioned therein, the second housing being spaced apart from the first housing;a baffle enclosed within the second housing,an annular fluid flow passage defined by the first housing and the baffle along a first side of the passage and by the second housing along an opposite side of the passage;the baffle incorporating means for preventing a flow of gas from the first housing interior directly into an interior of the baffle both before and after generation of a gas within the first housing interior.2. The gas generating system of wherein the first housing is in direct contact with the baffle.3. The gas generating system of wherein the second housing includes at least one first gas exit aperture for enabling fluid communication between an interior of the second housing and an exterior of the second housing after activation of the gas generating system claim 8 , and wherein the baffle defines at least one opening separate from the first opening for enabling fluid communication between the baffle chamber and the at least one first gas exit aperture after activation of the gas generating system.4. The gas generating system of fluid communication between an interior of the first housing and the baffle chamber opening is provided only by the annular flow passage.5. The gas generating system of wherein the baffle is positioned such that gases exiting the first housing flow directly into the passage and contact the second housing prior to contacting the baffle.6. A ...

GAS GENERATOR

A gas generator includes, 1. A gas generator comprising: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, and charged therein with a gas generating agent,the collar being formed by integrating a metallic portion and a resin portion, and the resin portion having a resin columnar part enclosing at least part of a peripheral surface of the ignition portion,the metallic portion being in a substantially cup-like shape having an annular bottom surface part and a circumferential wall, and an outer diameter of the circumferential wall being set to be larger than an outer diameter of the resin columnar part,the cup-shaped case having an annular bent portion obtained by bending inward an end portion of an opening thereof,the annular bent portion including an annular bent corner, an annular tilted surface, and an annular terminal end, and the annular tilted surface including an outer annular 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 thereof,in the cup-shaped case and the collar, the inner annular tilted surface of the annular bent portion pressing against a peripheral surface of the columnar part of the resin portion.2. The gas generator according to claim 1 , wherein the cup-shaped case and the collar are fixed to each other by pressing the inner annular tilted surface of the annular bent portion against the peripheral surface of the columnar part of the resin portion and abutting the annular bent corner against the annular bottom surface part of the metallic portion of the collar.3. The gas generator according to claim 1 , whereinthe cup-shaped case and the collar are fixed to each other in a state in which part of the inner annular tilted surface of the annular bent portion is pressed against the peripheral surface of the resin columnar part, and a portion ...

GAS GENERATOR, GAS GENERATOR HOLDER AND METHOD FOR MANUFACTURING GAS GENERATOR HOLDER

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. 1. A gas generator comprising:a cup filled with a gas generating agent generating gas by combustion;an igniter arranged to face said gas generating agent and ignited at a time of working to burn said gas generating agent; anda holder made of metal with said cup and said igniter assembled thereto, whereinsaid holder includes a body part and an igniter fixing engagement part projecting from said body part,said igniter fixing engagement part is bent such that a part of said igniter is sandwiched between said igniter fixing engagement part and said body part, so that said igniter is fixed by crimping to said holder, andsaid igniter fixing engagement part is finish shaped by forging processing, so that a metal flow appearing in a superficial layer of said igniter fixing engagement part extends continuously from said body part through said igniter fixing engagement part to return to said body part, without being divided in a surface of said igniter fixing engagement part.2. The gas generator according to claim 1 , whereinsaid holder further includes a cup fixing engagement part projecting from said body part,said cup fixing engagement part is bent such that a part of said cup is sandwiched between said cup fixing engagement part and said body part, so that said cup is fixed by crimping to ...

Solid fuel body, gas generator, module having a gas generator, and pyrotechnic drive unit

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.

VERY LOW-POWER ACTUATION DEVICES

An actuator including: a housing; a piston movably disposed in the housing, the piston being movable between an extended and retracted position; a plurality of gas generation charges generating a gas in fluid communication with the housing; and an exhaust port for exhausting gas from the cylinder generated by the plurality of gas generation charges; wherein activation of each of the plurality of gas generation charges results in an increase in pressure in the housing causing the piston to move in the housing from the refracted to the extended position. The actuator can further include a return spring for biasing the piston in the retracted position and the plurality of gas generation charges can be disposed in the housing. 1. A munition comprising: an actuator comprising two or more pistons, each of the pistons being movable between an extended and retracted position, the retracted position resulting from an activation of each of the two or more pistons; and', 'a movable rack having a portion engageable with a portion of the two or more pistons to sequentially move the rack upon activation of each of the two or more pistons; and, 'a control surface actuation device comprisinga control surface operatively connected to the rack such that movement of the rack moves the control surface.2. The munition of claim 1 , wherein the actuator comprises three pistons.3. The munition of claim 1 , wherein the actuator comprises:a housing for movably housing each of the two or more pistons;a plurality of gas generation charges generating a gas in fluid communication with the housing; andan exhaust port for exhausting gas from the housing generated by the plurality of gas generation charges;wherein activation of each of the plurality of gas generation charges results in an increase in pressure in the housing causing the piston to move in the housing from the refracted to the extended position.4. The munition of claim 3 , wherein the actuator further comprises a gas reservoir claim 3 ...

Pyrotechnic Pressure Accumulator

A pyrotechnic pressure accumulator includes an elongated body extending from a first end of a pyrotechnic section to a discharge end of a hydraulic section. A propellant charge located in a gas chamber of the pyrotechnic section, a piston movably disposed the hydraulic section, and a fluid disposed in a hydraulic chamber between the piston and the discharge end, wherein the fluid is exhausted under pressure through a discharge port in response to ignition of the propellant charge. 1. A pyrotechnic pressure accumulator , comprising:an elongated body extending from a first end of a pyrotechnic section to a discharge end of a hydraulic section;a propellant charge located in a gas chamber of the pyrotechnic section;a piston movably disposed the hydraulic section; anda fluid disposed in a hydraulic chamber between the piston and the discharge end, wherein the fluid is exhausted under pressure through a discharge port in response to ignition of the propellant charge.2. The device of claim 1 , wherein the piston comprises:a pyrotechnic end oriented toward the propellant charge and having a ballistic seal; anda hydraulic end oriented toward the discharge end and having a hydraulic seal.3. The device of claim 1 , comprising a pressure control device located between the propellant charge and the piston claim 1 , wherein the pressure control device comprises an orifice formed through a barrier.4. The device of claim 3 , wherein the barrier is connected in the elongated body by a solder or weld.5. The device of claim 1 , comprising:a pressure control device located between the propellant charge and the piston, wherein the pressure control device comprises an orifice formed through a barrier; anda rupture device sealing the orifice prior to ignition of the propellant charge.6. The device of claim 5 , wherein the piston comprises:a pyrotechnic end oriented toward the propellant charge and having a ballistic seal; anda hydraulic end oriented toward the discharge end and having a ...

Pressure-enhancing Explosive Charge

Exemplary multi-shell structured blast effect charges as well as shaped charge or shaped-charge-like explosive charges are disclosed which contain metal carbonyls in the form of pure substances, granulates, mixtures with inorganic fuels, or as granulates of mixtures with inorganic fuels integrated in suitable closed containers. The metal carbonyls serve in the form proposed herein as fuel, which during the intended conversion of the total charge exhibit an undirected (multi-shell structured blast effect charges) or at least partially directed (shaped charges or shaped-charge-like explosive charges) pressure enhancing effect.

GAS GENERATOR

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. 1. A gas generator , comprising:a diffuser shell having a top plate and an upper circumferential wall plate provided with a gas discharge port,a closure shell having a bottom plate and a lower circumferential wall plate,a housing forming an outer shell and being obtained by joining and integrating the upper circumferential wall plate and the lower circumferential wall plate,inside the housing,an ignition device chamber defined by a cup-shaped container, which is positioned at a central part of the bottom plate of the closure shell, and accommodating an ignition device therein,a combustion chamber formed to enclose the ignition device chamber and being loaded with a gas generating agent,an annular or flat plate-shaped filter disposed to face 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 at least towards the top plate of the diffuser shell, the cylindrical wall surface having a combustion gas passage,the retainer supporting at least part of an outer circumferential ...

GAS GENERATOR FOR RESTRAINING DEVICE

A gas generator for a restraining device includes, a housing having an ignition device and a diffuser portion, and a gas generating agent charged in an inner space of the housing, a partition member having a communication hole and being disposed to incline regarding a long axis of the housing, thereby dividing the inner space into a gas generating agent charging space and a gas flow channel space, the gas flow channel space communicating with the diffuser portion, both of the edges of the partition member being abutted against an inner circumferential surface of the housing, a cross-sectional area of the gas generating agent charging space decreasing from the ignition device side at one end of the housing to the diffuser portion side at the other end of the housing, a cross-sectional area of the gas flow channel space increasing from the ignition device side to the diffuser portion side. 1. A gas generator for a restraining device comprising:a cylindrical housing having an ignition device provided at one end in a long-axis direction thereof and a diffuser portion including a gas discharge port provided at the other end thereof;a gas generating agent charged in an inner space of the housing;a plate-like partition member, having a communication hole, disposed, in an inner space of the cylindrical housing, so as to incline relative to a long axis (X) of the cylindrical housing, thereby dividing the inner space into two mutually adjacent spaces, that is, a gas generating agent charging space and a gas flow channel space, the gas flow channel space communicating with the diffuser portion,both of side edges of the plate-like partition member being abutted against an inner circumferential surface of the cylindrical housing,a cross-sectional area of the gas generating agent charging space in a short-axis direction perpendicular to the long axis (X) decreasing from a side of the ignition device toward a side of the diffuser portion,a cross-sectional area of the gas flow ...

GAS GENERATOR

A gas generator includes, 1. A gas generator comprising:a diffuser shell which has a top plate and an upper circumferential wall plate provided with a gas discharge port, a closure shell which has a bottom plate and a lower circumferential wall plate, a housing, as an outer shell, obtained by joining and integrating only the upper circumferential wall plate and the lower circumferential wall plate,in the housing,an ignition device chamber defined by a cup-shaped container which accommodates an ignition device,a combustion chamber defined to surround the ignition device chamber and charged with a gas generating agent,an annular or flat-plate filter disposed to face the top plate and to be spaced from the upper circumferential wall plate,a first support member abutting against and supporting an upper surface of the filter,a second support member abutting against and supporting an lower surface of the filter,the first support member including,a disk-shaped portion and an annular wall portion, the disk-shaped portion provided with a plurality of communication holes formed only at a section in contact with the upper surface of the filter,one surface of the disk-shaped portion abutting against the top plate, the other surface of the disk-shaped portion abutting against the upper surface of the filter, the annular wall portion abutting against a part of an outer circumferential surface of the filter;the second support member including,a substantially cylindrical wall portion and an annular flat portion formed at a circumference in one end of the substantially cylindrical wall portion, andthe substantially cylindrical wall portion being fixed to the housing, the annular flat portion abutting against the lower surface of the filter,and, during actuation, a gap being formed between the top plate and the first support member; and a gap being formed between the upper circumferential wall plate and the first support member,when a pressure inside the combustion chamber increases ...

FUEL TABLET AND PROPELLAN FOR A GAS GENERATOR

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. 1. A propellant pellet for use in a safety device for vehicles that is obtained by dry injection of a powdered propellant composition , having a substantially cylindrical shape and a maximum diameter of 2 mm , wherein the propellant pellet especially has a relative bulk density of at least 0.5 , defined as ratio of the bulk density of the propellant pellet to the maximum theoretical density of the propellant composition.2. The propellant pellet according to claim 1 , wherein the propellant pellet has a relative bulk density of from 0.5 to 0.7.3. The propellant pellet according to claim 1 , wherein the propellant pellet has a diameter within the range of 1 to 2 mm.4. The propellant pellet according to claim 1 , wherein the propellant pellet has a ratio of height to diameter of from 0.2 to 0.8.5. The propellant pellet according to claim 1 , having dimensions of diameter×height ranging from 1.0 mm×0.4 to 2 mm×1.5 mm claim 1 , wherein the height-to-diameter ratio amounts to a maximum of 0.8.6. The propellant pellet according to claim 5 , wherein the dimensions are within the range of 1.5 mm×0.4-0.9 mm.7. The propellant pellet according to claim 5 , wherein the dimensions are within the range of 2 mm×0.4-1.5 mm.8. A propellant charge comprising a plurality of propellant pellets according to claim 1 , especially as ...

GAS GENERATOR

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. 1. A gas generator comprising:a metallic housing;a gas generating agent provided within the housing;an ignition device accommodated in the housing and including an igniter assembly, an igniter main body having an ignition portion charged with a priming and an electro-conductive pin extending from the ignition portion,', 'a metallic cylindrical fixing member for fixing the igniter main body by a resin, and, 'the igniter assembly including,'}a connector-connecting portion for fitting a connector which is to be connected to the electro-conductive pin,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 connected to a ground circuit located outside the gas generator.2. A gas generator according to claim ...

GAS GENERATOR

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. 1. A gas generator , comprising: a diffuser shell having a top plate and an upper circumferential wall plate provided with a gas discharge port, and', 'a closure shell having a bottom plate and a lower circumferential wall plate,, 'a housing including,'} an ignition device chamber provided within the housing and defined by a cup-shaped container that is disposed in a central part at the bottom plate of the closure shell, and accommodates an ignition device therein;', 'a combustion chamber defined to surround the ignition device chamber and charged with a gas generating agent;', 'an annular filter disposed to face the top plate;, 'the housing, forming an outer shell, being obtained by joining and integrating the upper circumferential wall plate and the lower circumferential wall plate;'} an annular bottom surface supporting at least a portion of a lower surface of the annular filter, and', 'a cylindrical wall surface extending at least in an axial direction of the housing from an outer circumferential edge of the annular bottom surface, the cylindrical wall surface being fixed by being press-fitted directly or indirectly to a circumferential wall plate formed by the upper circumferential wall plate and the lower circumferential wall plate;', 'a combustion ...

METHOD FOR PRODUCING SOLID FUEL TABLETS, SOLID FUEL TABLETS, GAS GENERATOR, AND MODULE HAVING A GAS GENERATOR

An inflator () comprises at least one combustion chamber (), filled with a plurality of solid propellant pellets (), each of the solid propellant pellets () including a surface having a breaking point () which is delimited at least by two converging surfaces () produced by pressing. A method of manufacturing solid propellant pellets (), includes the steps of providing a solid propellant (), pressing the solid propellant () into a pellet blank (), the pellet blank () having at least one predetermined breaking point () which divides the pellet blank () into at least two subareas (), and breaking the pellet blank () along the at least one predetermined breaking point (), wherein each of the at least two subareas () forms a solid propellant pellet (). 11030. A method of manufacturing solid propellant pellets () , especially for an inflator () and/or a pyrotechnical actuator of a vehicle occupant restraint system , comprising the process steps of:{'b': '12', 'a) providing a solid propellant ();'}{'b': 12', '16', '16', '18', '16', '20, 'b) pressing the solid propellant () into a pellet blank (), the pellet blank () having at least one predetermined breaking point () dividing the pellet blank () into at least two subareas (); and'}{'b': 16', '18', '20', '10, 'c) breaking the pellet blank () along the at least one predetermined breaking point (), wherein each of the at least two subareas () forms a solid propellant pellet ().'}216141616. The method according to claim 1 , wherein the pellet blank () is broken when being ejected from a press () claim 1 , or characterized in that the pellet blank () forms an intermediate product and the pellet blank () is broken in a process step which is separate from pressing.3182218. The method according to claim 1 , wherein the predetermined breaking point () is formed by a portion () of reduced pellet thickness and/or characterized in that the pellet thickness is continuously reduced toward the predetermined breaking point (). ...

GAS GENERATOR

The present invention provides a gas generator including a housing provided with a diffuser shell and a closure shell, an ignition device, the diffuser shell being in a substantially cup-like shape and having an annular bent portion obtained by bending a circumferential wall portion at an opening inwardly, the closure shell being in a substantially annular shape having a annular plate portion that includes a annular curved portion projecting toward the inside of the housing, the ignition device being fixed to a central hole in the annular plate portion with a resin, an inner circumferential part of the annular plate portion in the closure shell abutting against the resin, an outer circumferential part of the annular plate portion abutting against and being fixed to the annular bent portion of the diffuser shell. 1. A gas generator comprising ,a housing including a diffuser shell provided with a gas discharge port, and a closure shell,an ignition device including an igniter and a gas generating agent accommodated inside the housing, the closure shell being in a substantially annular shape having a annular plate portion, the annular plate portion having a annular curved portion projecting toward an inside of the housing,', 'the ignition device being fixed to a central hole in the annular plate portion with a resin,', 'an inner circumferential part of the annular plate portion in the closure shell abutting against the resin, and', 'an outer circumferential part of the annular plate portion abutting against and being fixed to the annular bent portion of the diffuser shell., 'the diffuser shell being in a substantially cup-like shape and having an annular bent portion obtained by bending a circumferential wall portion at an opening inwardly,'}2. The gas generator according to claim 1 , whereinthe closure shell has the annular plate portion and a cylindrical wall portion provided vertically toward the inside of the housing from an inner circumferential edge of the annular ...

GAS GENERATOR

A gas generator (A) includes a housing including a lower shell () and an upper shell (), an igniter (), a gas generating agent (), and a filter (). The housing includes a bottom plate portion () to which the igniter () is assembled and a combustion chamber () accommodating the gas generating agent (). The filter () is formed from a hollow cylindrical member and disposed in the housing so as to surround the combustion chamber () in a radial direction of the housing. The bottom plate portion () is provided with a positioning portion () formed from a resin-molded portion secured to the bottom plate portion (), which is formed by adhering a fluid resin material to an inner surface and solidifying the same, and the positioning portion () abuts to an inner circumferential surface of an axial end portion of the filter () located on a side of the bottom plate portion (). 1. A gas generator , comprising:{'b': 21', '11', '12', '22', '23', '60', '61, 'a short cylindrical housing which is constituted of a top plate portion () and a bottom plate portion () closing axial end portions and a circumferential wall portion (, ) provided with a gas discharge opening () and includes therein a combustion chamber () accommodating a gas generating agent ();'}{'b': 40', '11', '61, 'an igniter () assembled to said bottom plate portion (), for burning said gas generating agent ();'}{'b': 70', '60, 'claim-text': {'b': 10', '11', '20', '21, 'said housing at least having a lower shell () including said bottom plate portion () and an upper shell () including said top plate portion (); and'}, 'a hollow cylindrical filter () disposed in said housing and surrounding said combustion chamber () in a radial direction of said housing,'}{'b': 38', '10', '10', '70', '70', '11, 'a positioning portion () formed from a resin-molded portion which is formed by attaching a fluid resin material to an inner surface of said lower shell () and solidifying the fluid resin material so that at least a part of the ...

GAS GENERATOR

A gas generator (A) includes a lower shell (), an upper shell (), a holding portion (), an igniter (), an enhancer cup (), and a filter (). The lower shell () is made of a press-formed product formed by press-working one plate-shaped member made of metal, and includes a protruding cylindrical portion () and an opening () provided in the protruding cylindrical portion (). The holding portion () is made of a resin-molded portion formed by attaching an insulating fluid resin material to a bottom plate portion () so as to reach a part of an outer surface from a part of an inner surface of the bottom plate portion () of the lower shell () through the opening () and solidifying the same. The enhancer cup () is held by the holding portion () as an locking protruding portion () provided in the enhancer cup () is locked to a locking recess portion () provided in the holding portion (). 1. A gas generator , comprising:{'b': 21', '11', '12', '22', '23', '60', '61, 'a short cylindrical housing which is constituted of a top plate portion () and a bottom plate portion () closing axial end portions and a circumferential wall portion (, ) provided with a gas discharge opening () and includes therein a combustion chamber () accommodating a gas generating agent ();'}{'b': 40', '11', '61, 'an igniter () assembled to said bottom plate portion (), for burning said gas generating agent ();'}{'b': 46', '47', '48', '60', '40, 'a cylindrical cup-shaped member () with bottom containing an enhancer chamber () accommodating an enhancer agent () and arranged to protrude into said combustion chamber () so as to face said igniter (); and'}{'b': 30', '11', '40, 'a holding portion () provided on said bottom plate portion (), for holding said igniter (),'}{'b': 10', '11', '20', '21, 'said housing at least having a lower shell () including said bottom plate portion () and an upper shell () including said top plate portion (),'}{'b': 13', '21', '15', '13', '21, 'said lower shell including a protruding ...

GAS GENERATOR

A gas generator includes a lower shell, an upper shell, a holding portion, an igniter, and a filter. The lower shell is made of a press-formed product formed by press-working one plate-shaped member made of metal, and includes a protruding cylindrical portion and an opening provided in the protruding cylindrical portion. The holding portion is formed from a resin-molded portion formed by attaching an insulating fluid resin material to a bottom plate portion so as to reach a part of an outer surface from a part of an inner surface of the bottom plate portion of the lower shell through the opening and solidifying the same, and includes an accommodation recess portion in a portion opposed to a top plate portion. The igniter is held by the holding portion while it is inserted in the accommodation recess portion from a side of the top plate portion and fitted therein. 1. A gas generator , comprising:a short cylindrical housing which is constituted of a top plate portion and a bottom plate portion closing axial end portions and a circumferential wall portion provided with a gas discharge opening and includes therein a combustion chamber accommodating a gas generating agent;an igniter for burning said gas generating agent; anda holding portion provided on said bottom plate portion, for holding said igniter,said housing at least having a lower shell including said bottom plate portion and an upper shell including said top plate portion,said lower shell including a protruding cylindrical portion provided to protrude toward said top plate portion and an opening provided at an axial end portion of said protruding cylindrical portion, which is located on a side of said top plate portion,said holding portion being formed from a resin-molded portion which is formed by attaching a fluid resin material to said bottom plate portion so as to reach a part of an outer surface of said bottom plate portion from a part of an inner surface of said bottom plate portion through said opening ...

IGNITION POWDER COMPOSITION FOR IGNITER

An ignition powder composition for igniter of which friction sensitivity can be lowered with the required firing current sensitivity being achieved is provided as ignition powder for an igniter that is activated by an electrical signal. The ignition powder composition for igniter contains metal hydride (A); metal powder (B) that is one or more selected from the group consisting of tungsten powder, molybdenum powder, aluminum powder, titanium powder, and magnesium powder; and perchlorate (C). 1. An ignition powder composition for igniter , comprising:metal hydride (A);metal powder (B) that is one or more selected from the group consisting of tungsten powder, molybdenum powder, aluminum powder, titanium powder, and magnesium powder; andperchlorate (C).2. The ignition powder composition for igniter according to claim 1 , wherein the metal hydride (A) contains zirconium hydride and/or titanium hydride.3. The ignition powder composition for igniter according to claim 1 , wherein the metal powder (B) contains tungsten powder.4. The ignition powder composition for igniter according to claim 1 , wherein the content of the metal hydride (A) is 10 mass % to 50 mass %.5. The ignition powder composition for igniter according to claim 1 , wherein:the content of the metal hydride (A) is 10 mass % to 50 mass %,the content of the metal powder (B) is 10 mass % to 50 mass %, andthe content of the perchlorate (C) is 20 mass % to 70 mass %.6. An igniter using the ignition powder composition for igniter according to .7. A gas generator for seat belt pretensioner claim 6 , using the igniter according to .8. A gas generator for airbag claim 6 , using the igniter according to .9. The ignition powder composition for igniter according to claim 2 , wherein the metal powder (B) contains tungsten powder. The present invention relates to an ignition powder composition for igniter and an igniter using the ignition powder composition. In particular, the present invention relates to an ignition ...

GAS GENERATOR

The present invention provides a gas generator including: 1. A gas generator comprising:a housing including a top plate, a bottom plate and a circumferential wall provided with a gas discharge port;an inner cylindrical member disposed inside the housing and defining an ignition chamber therein;a space outside the inner cylindrical member in the housing being axially divided into two spaces by a partition member;a first combustion chamber charged with a first gas generating agent and being formed in one of the two spaces, the first combustion chamber being in communication with the ignition chamber by a first communication nozzle provided in the inner cylindrical member;a second combustion chamber charged with a second gas generating agent and being formed in the other of the two spaces, the second combustion chamber being in communication with the ignition chamber by a second communication nozzle provided in the inner cylindrical member;a plenum chamber located between the first combustion chamber and the second combustion chamber, an inner side of the plenum chamber facing the inner cylindrical member, an outer side of the plenum chamber facing the circumferential wall provided with the gas discharge port,the first combustion chamber being in communication with the plenum chamber, and the second combustion chamber being in communication with the plenum chamber,an axial position of the first communication nozzle being adjusted to be farther away from the plenum chamber, than an axial position of the second communication nozzle,during actuation, the first gas generating agent located in the first combustion chamber to be burn up earlier than the second gas generating agent located in the second combustion chamber.2. A gas generator according to claim 1 , whereinthe first combustion chamber is in a side of the top plate in the housing, and the second combustion chamber is in a side of the bottom plate in the housing,the first communication nozzle is formed in a ...

Gas generator and airbag apparatus

A gas generator includes an inflator and a retainer. The retainer includes a holding portion, which partially covers the inflator. The inflator has an attaching protrusion for determining the position relative to the retainer. The retainer includes an engagement base and a tongue piece. The tongue piece extends in an axial direction of the inflator and from a position separated from the engagement base in the circumferential direction of the holding portion. The engagement base and the tongue piece each have an engagement portion. The engagement portions face each other to form an engagement space therebetween, into which the attaching protrusion enters. The engagement space has an inlet the width of which is less than the size of the positioning protrusion. When the inflator causes the positioning protrusion to increase the width of the inlet, the tongue piece is elastically deformed about a basal end of the tongue piece.

Inflator and airbag device

An inflator includes: an inflator case configured from a bottomed cylindrical upper case and lower case, with the inflator case having an upper combustion chamber and a lower combustion chamber in which gas generants are accommodated, the upper combustion chamber and the lower combustion chamber being partitioned by a partition wall, and with the inflator case having a peripheral wall in which upper gas discharge holes and lower gas discharge holes are formed; a first inner cylinder member in which a transfer charge for combusting the gas generant inside the lower combustion chamber is accommodated; a second inner cylinder member whose upper end portion penetrates the partition wall and is positioned in a lower portion of the upper combustion chamber, with a transfer charge for combusting the gas generant inside the upper combustion chamber being accommodated inside the second inner cylinder member; a first igniter and a second igniter.

GAS GENERATOR AND ASSEMBLING METHOD THEREOF

The present invention provides a gas generator, including: 1. A gas generator , comprising:a housing provided with a gas discharge port;an igniter assembly and a gas generating agent accommodated in the housing;a metallic cup member having a constant inner diameter and covering the igniter assembly to define a charging chamber for charging the gas generating agent;in the igniter assembly,an igniter main body, which includes an ignition portion and a electro-conductive pin, being integrated with a metallic collar by a resin; a fixing portion including a portion inserted into a hole in a bottom surface of the housing and a remaining portion projecting to an inner side of the bottom surface of the housing, and', 'a guide portion formed axially in connection with the fixing portion between the fixing portion and the resin axially in connection with the fixing portion,, 'the metallic collar having,'}the guide portion having an inclined surface in which an outer diameter (D3) of a first portion in contact with the fixing portion is a maximum diameter and an outer diameter (D4) of a second portion on the axially opposite side to the first portion is a minimum diameter;the metallic cup member and the metallic collar satisfyingD1=D3, where (D1) is an outer diameter of the fixing portion,D1=D3≦R1, where (R1) is an inner diameter of the metallic cup member, andR1>D4; andthe metallic cup member being fixed in a state in which an inner circumferential wall surface of the metallic cup member and an outer circumferential wall surface of the fixing portion are press-fitted, and an annular gap is formed between the inner circumferential wall surface of the metallic cup member and an outer circumferential wall surface of the guide portion.2. A gas generator , comprising:a housing provided with a gas discharge port;an igniter assembly and a gas generating agent accommodated in the housing;a metallic cup member having a constant inner diameter and covering the igniter assembly to ...

GAS-GENERATING PYROTECHNIC SOLID OBJECTS

Gas-generating pyrotechnic solid objects, the composition of which, free of binder and of explosive ingredient, expressed as weight percentages, contains from 35 to 50%, advantageously from 40 to 50%, of guanidine nitrate, from 35 to 50% of basic copper nitrate, from 0.5 to 6% of at least one compound chosen from alumina and inorganic titanates, the melting point of which is above 2100 K, and from 5 to 18% of at least one inorganic oxalate, chosen from sodium oxalate, tin oxalate, strontium oxalate, iron oxalate, copper oxalate and mixtures thereof. 1. A gas-generating pyrotechnic solid object , the composition of which , expressed as weight percentages , contains:from 35 to 50% of guanidine nitrate,from 35 to 50% of basic copper nitrate,from 0.5 to 6% of at least one compound selected from the group consisting of alumina and inorganic titanates, the melting point of which is above 2100 K, andfrom 5 to 18% of at least one inorganic oxalate, selected from the group consisting of sodium oxalate, tin oxalate, strontium oxalate, iron oxalate, copper oxalate and mixtures thereof;said composition being free of binder and of explosive ingredient.2. The object as claimed in claim 1 , wherein said at least one inorganic oxalate is selected from the group consisting of sodium oxalate claim 1 , strontium oxalate and copper oxalate.3. The object as claimed in claim 1 , the composition of which claim 1 , expressed as weight percentages claim 1 , contains:from 35 to 50% of guanidine nitrate,from 35 to 45% of basic copper nitrate,from 1 to 6%, advantageously 3 to 5%, of at least one compound selected from the group consisting of alumina and inorganic titanates, the melting point of which is above 2100 K, andfrom 5 to 15% of at least one inorganic oxalate selected from the group consisting of sodium oxalate, tin oxalate and mixtures thereof.4. The object as claimed in claim 1 , wherein said at least one inorganic titanate chosen is selected from the group consisting of strontium ...

INFLATION ASSEMBLIES FOR EVACUATION SYSTEMS

An inflation assembly for an evacuation system may comprise a manifold defining an interior volume and a plurality of inflators fluidly coupled to the manifold. Each inflator of the plurality of inflators may include a solid gas generating material and an igniter configured to ignite in response to receiving an ignite signal. The solid gas generating material may be configured to generate a gas in response to an ignition of the igniter. 1. An inflation assembly for an inflatable device , comprising:a manifold defining an interior volume; and a solid gas generating material; and', 'an igniter configured to ignite in response to receiving an ignite signal, wherein the solid gas generating material is configured to generate a gas in response to an ignition of the igniter., 'a plurality of inflators fluidly coupled to the manifold, wherein each inflator of the plurality of inflators includes2. The inflation assembly of claim 1 , further comprising a turbine fan fluidly coupled to the manifold.3. The inflation assembly of claim 1 , further comprising a controller operationally coupled to the plurality of inflators claim 1 , wherein the controller is configured to send ignite signals to the plurality of inflators.4. The inflation assembly of claim 3 , wherein the controller is configured to send a first ignite signal to a first inflator of the plurality of inflators claim 3 , and wherein the controller is configured to send a second ignite signal to a second inflator of the plurality of inflators a predetermined time delay after sending the first ignite signal.5. The inflation assembly of claim 3 , further comprising a first sensor in communication with the controller claim 3 , wherein the first sensor is configured to measure at least one of a temperature claim 3 , a wind speed claim 3 , or a sill height.6. The inflation assembly of claim 5 , further comprising a second sensor in communication with the controller claim 5 , wherein the second sensor is configured to ...

Gas generant composition, preparation method therefor, and use thereof

Provided are a gas generant composition, a preparation method, and a gas generator containing the composition. The gas generant composition includes components having the following contents, in percent by mass: 40% to 60% of guanidine nitrate, 25% to 50% of basic copper nitrate, 0% to 7% of ammonium perchlorate, 1% to 10% of a slag-forming agent, and 0.05% to 5% of a release agent/lubricant, the slag-forming agent is used as a form-retaining agent, so that the tablets can retain their form before combustion very well after combustion, thereby completely avoiding burning of an inflatable bag due to melting and splashing of the combusted tablets. Moreover, ammonium perchlorate is used as auxiliary oxidizers, thereby reducing the amount of basic cupric nitrate used and reducing molten copper residues. The gas generant composition is mainly used in a gas generator for vehicle airbag.

Phase change separators for thermal gas generators

Provided are devices for generating a desired gas or mixture of gases by thermally decomposing a gas-generating composition (e.g. a metal hydride or polymer) using the thermal energy generated by reaction of a heat-generating composition (e.g. a thermite mixture), and methods of making and using such devices. The devices include phase-changing separators, i.e. separators that at least partially melt, vaporize, or sublimate as a result of the thermal energy generated by the heat-generating composition. 1. A device , comprising:at least one separator, at least a portion of which can undergo a phase change under conditions occurring in the device;a pyrotechnic composition, proximate to a first surface of the at least one separator; andat least one gas generating composition comprising a metal hydride, proximate to a second surface of the at least one separator, wherein the at least one separator is positioned between the pyrotechnic and gas generating compositions,wherein at least a portion of the at least one separator is configured to undergo a phase change, using heat generated by a reaction of the pyrotechnic composition.2. The device of claim 1 , wherein the at least one separator comprises a metal.3. The device of claim 1 , wherein the at least one separator comprises at least first and second layers claim 1 , wherein a material of the first layer is different from a material of the second layer.4. The device of claim 1 , wherein the at least one separator comprises a mixture of at least two different materials.5. The device of claim 1 , wherein the pyrotechnic composition is a thermite composition comprising a mixture of a metal fuel and a metal oxide oxidizer that undergoes an exothermic reduction-oxidation reaction when ignited by heat.6. The device of claim 1 , wherein the at least one separator is configured such that at least a portion of the pyrotechnic composition or its reaction products and at least a portion of the gas generating composition are in ...

GAS GENERATING COMPOSITION

Provided is a gas generating agent with a low combustion temperature and good ignition ability. The gas generating agent includes: (a) a fuel; (b) an oxidizing agent including a basic metal nitrate; (c) a basic metal carbonate; and (d) a binder (not including a component selected from starch, etherified starch, methyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, guar gum, etherified guar gum, tamarind gum, poly(vinyl alcohol), polyvinyl ether, polyacrylamide, polyethylene oxide, and polyvinyl pyrrolidone). The fuel of the component (a) includes melamine cyanurate (MC) and nitroguanidine (NQ), with MC/NQ (ratio of contents) of being within a range of 0.20 to 1.50. 1. A gas generating composition comprising:(a) a fuel;(b) an oxidizing agent including a basic metal nitrate;(c) a basic metal carbonate; and(d) a binder (not including a component selected from starch, etherified starch, methyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl cellulose, guar gum, etherified guar gum, tamarind gum, poly(vinyl alcohol), polyvinyl ether, polyacrylamide, polyethylene oxide, and polyvinyl pyrrolidone),the fuel of the component (a) including melamine cyanurate (MC) and nitroguanidine (NQ), with a ratio (MC/NQ) of contents of MC and NQ being within a range of 0.20 to 1.50;the content of the component (b) being larger than the content of the component (c), a ratio of the content of the component (b)/the content of the component (c) being equal to or greater than 1.00.2. The gas generating composition according to claim 1 , whereinthe content of the fuel of the component (a) is 20 to 50% by mass;the content of the oxidizing agent of the component (b) is 30 to 75% by mass;the content of the basic metal carbonate of the component (c) is 3 to 30% by mass; andthe content of the binder of the component (d) is 2 to 10% by mass.3. The gas generating composition according to claim 1 , whereinthe ...

Gas exhaust device for retractor pretensioner for vehicle

Disclosed herein is a gas exhaust device of a retractor pretensioner for a vehicle, including a pinion connected to a belt weaving spool in a retractor body; a rack linearly transferred when engaged with the pinion; a rack transfer path formed between a pretensioner body and the retractor body, configured to guide the rack linearly toward the pinion; and a micro-gas generator (MGG) mounted on a side of a lower end of the pretensioner body to elevate the rack toward the pinion using gas generated by the MGG, wherein a gas moving aperture is formed to allow communication between an upper portion and a lower portion of the rack transfer path in a longitudinal direction in the rack, to elevate the rack using the gas generated from the MGG and simultaneously, move the rack toward the upper portion of the rack transfer path through the gas moving aperture.

Waterless electrically operated propellant

An electrically operated propellant includes a perchlorate oxidizer and a water insoluble polymeric binder with a water solubility of less than 0.1 grams (g) per 100 grams water at 25° Celsius (° C.). The electrically operated propellant is substantially waterless with a water content of less than 10 weight % (wt. %) water based on total weight of the electrically operated propellant.

GAS GENERATOR

A gas generator includes a housing and a gastight container which accommodates a gas generating agent. The gastight container includes a cup body and a cover body. The cover body includes a bottom portion and a fold-over portion which covers an opening end of the cup body. The cover body is fixed to the cup body by providing, in the fold-over portion in a portion covering an outer circumferential surface of the opening end of the cup body, a first swaging portion in a portion of the fold-over portion which corresponds to a sidewall portion of the cup body and defines a gas generating agent accommodation chamber at a position adjacent to the bottom portion and a second swaging portion in a portion opposed to a portion of the fold-over portion which covers an inner circumferential surface of the opening end of the cup body. 1. A gas generator comprising:an elongated cylindrical housing having axial one and the other end portions closed and having a circumferential wall portion;a gas generating agent accommodated in the housing;an igniter assembled to the one end portion of the housing, the igniter serving to burn the gas generating agent; anda gastight container arranged in the housing, the gastight container defining a gas generating agent accommodation chamber where the gas generating agent is accommodated, the gastight container melting or bursting with heat or a pressure generated by activation of the igniter,the gastight container including a cup body and a cover body, the cup body including a cylindrical sidewall portion arranged substantially coaxially with the housing and a top wall portion which closes one axial end portion of the sidewall portion, the cover body being attached to an opening end which is the other axial end portion of the cup body, a bottom portion in a form of a flat plate, the bottom portion being located in the cup body by being inserted in the opening end of the cup body and defining the gas generating agent accommodation chamber together ...

PYROTECHNIC TENSIONER

A pyrotechnic pretensioner () for a safety system in a vehicle has an inflator () including a propelling charge () and an igniter () and including a housing () in which a pressure chamber () is provided into which gas can flow and in which a piston can be displaced by the gas, an end piece () which closes the pressure chamber () and in which a chamber () is formed into which the propelling charge () is filled and whose wall constitutes the wall of the propellant is provided on the housing (). 110-. (canceled)1110222632121416142426261212384016. A pyrotechnic pretensioner () for a safety system in a vehicle comprising an inflator () including a propelling charge () as well as an igniter () and comprising a housing () in which a pressure chamber () is provided into which gas can flow and in which a piston can be displaced by the gas , and having an end piece () which closes the pressure chamber () and in which a chamber () is provided in which the propelling charge () is filled and whose wall constitutes the wall of the propellant defined by the propelling charge () is provided on the housing () , wherein the housing () includes interconnected metallic tubes ( , ) being connected by the end piece ().121636242614. The pyrotechnic pretensioner according to claim 11 , wherein in the end piece () a gas conduit () is provided which in the case of release forms a fluidic communication between the chamber () for the propelling charge () and the pressure chamber ().131624261428. The pyrotechnic pretensioner according to claim 11 , wherein in the end piece () between the chamber () for the propelling charge () and the pressure chamber () a bursting wall () is provided.143416. The pyrotechnic pretensioner according to claim 11 , wherein a guide passage () for a tensile element of the safety system is provided on the end piece ().151618343620182426. The pyrotechnic pretensioner according to claim 11 , wherein the end piece () includes a first portion () in which the guide passage ...

Heated inflation system

A heated inflation system for an inflatable device on an aircraft is provided. The heated inflation system includes an inflation cylinder configured to hold a gas mixture under pressure, a heating element configured to selectively heat the gas mixture, and a temperature sensor configured to sense a temperature of the gas mixture. The heated inflation system also includes a control module coupled to the heating element and the temperature sensor. The control module is configured to regulate heat applied by the heating element to the gas mixture based on a sensed temperature from the temperature sensor.

Ignition powder, preparation method therefor and use thereof, and airbag gas generator

Disclosed are an ignition powder, a preparation method therefor and a use thereof, and an airbag gas generator, which belong to the technical field of ignition powders. The raw materials of the ignition powder include the following components in percentages by mass: potassium perchlorate. 30%˜50%; basic copper nitrate: 5%˜20%; a fuel: 15%˜60%; a metal oxide: 1%˜25%; and a metal powder: 1%˜25%, wherein the metal powder is at least one of a titanium powder, a magnesium powder, a copper powder, an iron powder, a zirconium powder, a hafnium powder, a tungsten powder or a silicon powder.

GAS GENERATOR

A gas generator includes a cylindrical ignition device chamber, a cylindrical pressurized gas chamber, a closing member having a fragile portion, a multifunctional member inside the ignition device chamber, and having a base plate portion with a first through-hole and a cylindrical wall portion with a second through-hole, an opening portion of the cylindrical wall portion abutting against the fragile portion, first and second plenum chambers, a discharge port in the ignition device chamber housing facing the second plenum chamber, and the multifunctional member movable in the axial direction to rupture the closing member. Gas passing through the first through-hole, the first plenum chamber, the second through-hole and the second plenum chamber is discharged from the gas discharge port. Gas inside the pressurized gas chamber housing entering the first plenum chamber, passes through the second through-hole and the second plenum chamber and is discharged from the gas discharge port. 1. A gas generator , comprising:a cylindrical ignition device chamber housing provided with a gas discharge port, accommodating an igniter and a gas generating agent therein, the igniter closing an opening portion of the ignition device chamber housing and being fixed thereto;a cylindrical pressurized gas chamber housing filled with pressurized gas, the cylindrical pressurized gas chamber housing being joined to the ignition device chamber housing to form an outer shell container;a closing member being provided with a fragile portion and closing between the ignition device chamber housing and the pressurized gas chamber housing; a base plate portion abutting against an inner wall surface of the ignition device chamber housing and having a first through-hole in a thickness direction, and', 'a cylindrical wall portion extending from one surface of the base plate portion, the cylindrical wall portion having an opening portion at a distal end thereof and a smaller outer diameter than an outer ...

Apparatus and Method for Inflating In-Space Gossamer Structures with Solid-State Gas Generator Arrays

A micro gas generator having a housing that contains one or more heating units. The heating units are independently operable. Each of the heating units contains a heating element and gas producing material. 1. A micro gas generator comprising:a housing;a plurality of heating units contained in said housing; andsaid heating units independently operable.2. The gas generator of wherein each of said heating units contains a heating element and gas producing material.3. The gas generator of wherein each of said heating units includes a well claim 2 , each of said wells contain said gas producing material.4. The gas generator of wherein said gas producing material is a crystalline structure.5. The gas generator of wherein said crystalline structure is Sodium Azide (NaN).6. The gas generator of wherein said heating units are in communication with an inflatable structure claim 3 , said heating units operable to release a gas into an interior portion of said inflatable structure by heating said gas producing material and said gas passes directly into said interior portion without passing through any moving parts.7. The gas generator of wherein said heating units are in communication with an inflatable structure claim 3 , said heating units operable to release a gas into an interior portion of said inflatable structure by heating said gas producing material and said gas passes directly into said interior portion without passing through any moving parts and without exhausting the supply of said gas producing material.8. A micro gas generator comprising:an array of gas generating cells;a gas generating material located in a portion of each of said cells;a plurality of input ports, output ports and microheaters;each cell in communication with an input port, an output port and a micro heater;said array comprised of a plurality of layers;at least one of said layers made of a metal, said metal forms said input ports, output ports and microheaters;at least one of said layers form ...

Device for controlling a rate of gas pressure increase in a gun barrel

A device is disclosed for controlling a rate of gas pressure increase generated by a propellant for propelling a projectile from an upstream towards a downstream end of a gun barrel. The device includes a first surface area defined by the propellant and a deterrent applied to a second surface area defined by the first surface area, the second surface area being less than the first surface area. The arrangement is such that the second surface area defines a deterrent free third surface area of the propellant. A primer is operatively disposed relative to the third surface area such that when the primer is activated, the third surface area of the propellant is ignited. The arrangement is such that firstly, while the third surface area is burning and generating gas between the upstream end of the gun barrel and the projectile, the rate of gas pressure increase begins to propel the projectile towards the downstream end of the gun barrel. Secondly, the third surface area of the propellant while burning exposes a progressively increasing surface area of the propellant for burning together with an associated increased generation of gas, the increasing surface area of the propellant defining a concave crater, the crater having a wall which progressively increases in surface area during the burning such that the rate of increase in gas pressure continues to increase for accelerating the projectile towards the downstream end of the gun barrel. 1. A device for controlling a rate of gas pressure increase generated by a propellant for propelling a projectile from an upstream towards a downstream end of a gun barrel , said device comprising:a first surface area defined by the propellant;a deterrent applied to a second surface area defined by said first surface area, said second surface area being less than said first surface area such that said second surface area defines a deterrent free third surface area of the propellant; anda primer operatively disposed relative to said ...

COOL BURNING GAS GENERANT COMPOSITIONS WITH LIQUID COMBUSTION PRODUCTS

Cool burning gas generant compositions for an automotive inflatable restraint system are provided that include a bismuth-containing compound selected from the group consisting of: bismuth citrate, bismuth subsalicylate, bismuth hydroxide, copper bismuth hydroxy nitrate, bismuth subcarbonate, bismuth suboxalate, and combinations thereof. The gas generant comprises at least one copper-containing component. The gas generant includes at least one oxidizer, fuel, and optional coolant. The maximum flame temperature at combustion (T) of less than or equal to about 1700K (1,427° C.). The cool burning gas generant composition generates liquid phase combustion products making it suitable for use in a filterless inflatable restraint system. Copper and bismuth present in the cool burning gas generant composition react to form an alloy having a melting point at or near the maximum flame temperature at combustion (T). 1. A cool burning gas generant composition for an automotive inflatable restraint system comprising:a bismuth-containing compound selected from the group consisting of: bismuth citrate, bismuth subsalicylate, bismuth hydroxide, copper bismuth hydroxy nitrate, bismuth subcarbonate, bismuth suboxalate, and combinations thereof;an oxidizer; and{'sub': 'c', 'a fuel, wherein the cool burning gas generant composition comprises copper and has a maximum flame temperature at combustion (T) of less than or equal to about 1700K (1,427° C.).'}2. The cool burning gas generant composition of claim 1 , wherein the bismuth-containing compound is an oxidizer comprising copper bismuth hydroxy nitrate ([CuBi(OH)]NO).3. The cool burning gas generant composition of claim 1 , wherein the bismuth-containing compound is a co-fuel selected from the group consisting of: bismuth citrate (Bi(CHO)) claim 1 , bismuth subsalicylate (CHBiO) claim 1 , and combinations thereof.4. The cool burning gas generant composition of claim 1 , wherein the bismuth-containing compound is a coolant selected from ...

NON-EXPLOSIVE POWER SOURCE FOR ACTUATING A SUBSURFACE TOOL

Power sources and methods for applying a force to an object include use of thermite in a quantity sufficient to generate a thermite reaction, and a gas producing substance disposed in association with the thermite. The gas producing substance produces a gas when the thermite reaction occurs. The thermite reaction, the gas, or combinations thereof provide a force to the object. The gas can slow the thermite reaction to enable slower or continuous application of force while being non-extinguishing of the thermite reaction. The gas can further control heat transfer from the thermite reaction to adjacent objects. 1. A power source for actuating a subsurface tool , the power source comprising:a quantity of thermite sufficient to generate a thermite reaction when heated in excess of an ignition temperature; anda gas producing substance disposed in association with the thermite, wherein the gas producing substance produces a gas when the thermite reaction occurs, wherein the gas slows the thermite reaction, and wherein the gas, the thermite reaction, or combinations thereof, produces a pressure for actuating a subsurface tool.2. The power source of claim 1 , wherein the gas produced by the gas producing substance is non-extinguishing of the thermite reaction.3. The power source of claim 1 , wherein the gas producing substance is positioned exterior to the thermite and at least partially encloses the thermite.4. The power source of claim 3 , wherein the gas producing substance comprises a container shape.5. The power source of claim 1 , wherein the gas producing substance is substantially mixed with the quantity of thermite.6. The power source of claim 1 , wherein the gas producing substance claim 1 , the gas claim 1 , or combinations thereof claim 1 , reduces heat transfer from the thermite reaction to an adjacent object.7. (canceled)8. The power source of claim 1 , wherein the gas slows the thermite reaction such that the thermite reaction occurs for a time greater than ...

Combustible Pellet for Creating Heated Gas

What is presented is a combustible pellet for creating heated gas. The combustible pellet is insertable into a cutting apparatus or a high power igniter or both. The combustible pellet is compacted to be resistant to mechanical damage and is resistant to unintentional ignition. The combustible pellet is ignitable without a loose powdered form of combustible material when the combustible pellet is in the cutting apparatus or the high power igniter. 1. A combustible pellet for creating heated gas , said combustible pellet is insertable into a cutting apparatus or a high power igniter or both , said combustible pellet comprising:said combustible pellet is compacted to be resistant to mechanical damage;said combustible pellet is resistant to unintentional ignition; andsaid combustible pellet is ignitable without a loose powdered form of combustible material when said combustible pellet is in the cutting apparatus or the high power igniter.2. The combustible pellet of wherein said combustible pellet is compacted to between 90 percent and 99 percent of its theoretical density.3. The combustible pellet of wherein said combustible pellet is capable of being transported separate from the cutting apparatus or the high power igniter or both.4. The combustible pellet of wherein said combustible pellet is capable of being stored separate from the cutting apparatus or the high power igniter or both.5. The combustible pellet of wherein said combustible pellet is made from thermite claim 1 , oxidizers claim 1 , carbon-based fuels claim 1 , Polytetrafluoroethylene claim 1 , Fluoropolymer elastomer claim 1 , other polymers claim 1 , or some combination thereof.6. The combustible pellet of wherein said combustible pellet comprising a circular cross-section and tubular length.7. The combustible pellet of wherein said combustible pellet comprising an axial hole. This application takes priority from U.S. non-provisional application Ser. No. 15/590,667, filed May 9, 2017 which takes ...

DUPLEX ACTUATION SYSTEM FOR INFLATABLE RESTRAINTS

A duplex firing initiator for an airbag inflator includes both a primary initiator and a secondary initiator for electrical connection to a Restraint Control Module. In the duplex firing initiator, current is conducted in a forward polarity through the primary initiator to actuate the primary initiator and current is conducted in a reverse polarity through the secondary initiator to actuate at least the secondary initiator. 1. A duplex firing initiator for an airbag inflator , the duplex firing initiator comprising:both a primary initiator and a secondary initiator for electrical connection to a Restraint Control Module; andwherein current is conducted in a forward polarity through the primary initiator to actuate the primary initiator and current is conducted in a reverse polarity through the secondary initiator to actuate at least the secondary initiator.2. The duplex firing initiator of additionally comprising a common housing containing both the primary initiator and the secondary initiator.3. The duplex firing initiator of wherein the primary initiator and the secondary initiator are contained within an injection molded body.4. The duplex firing initiator of wherein:a diode and the secondary initiator are connected in a parallel connection;the primary initiator is connected in series with the parallel connection of the diode and the secondary initiator; andwherein current is conducted in a forward polarity through the diode and the primary initiator to actuate the primary initiator and current is conducted in a reverse polarity through the primary initiator and the secondary initiator to actuate at least the secondary initiator.5. The duplex firing initiator of claim 4 , wherein current is conducted in the reverse polarity through the primary initiator and the secondary initiator to actuate the primary initiator and the secondary initiator in series.6. The duplex firing initiator of claim 5 , wherein the diode comprises a standard rectifier diode.7. The duplex ...

GAS GENERATOR

A gas generator including, a housing provided with a gas discharge port, an ignition chamber provided on a side of a first end portion of the cylindrical housing and including an igniter, a combustion chamber disposed within the housing and containing therein a molded article of a gas generating agent, a rupturable closing member partitioning the combustion chamber from the ignition chamber and including therein a rupturable portion partially ruptured upon an actuation of the gas generator, a molded article of a transfer charge contained in the ignition chamber, an inner tube disposed in the combustion chamber and extending from the closing member toward the gas discharge port and defining, in an outside thereof, a space that contains the molded article of the gas generating agent, the inner tube including therein a hollow space and having a peripheral wall provided with a plurality of through holes, the inner tube including a first open end and communicating the hollow space with the ignition chamber so as to transfer the molded articles of the transfer charge in a burning state toward the second end portion in the inner tube when the rupturable portion is ruptured. 16.-. (canceled)7. A gas generator , comprising:an ignition chamber including an igniter on a side of a first end portion of a cylindrical housing;a diffuser portion including a gas discharge port on a side of a second end portion of the cylindrical housing, the second end portion being on an axially opposite side to the first end portion; anda combustion chamber disposed between the ignition chamber and the diffuser portion and containing a molded article of a gas generating agent, the ignition chamber and the combustion chamber being partitioned by a partially rupturable closing member,wherein:a molded article of a transfer charge is contained in the ignition chamber, and the closing member that is partially rupturable is ruptured due to an increase in a pressure in the ignition chamber,the combustion ...

Pressurized Actuator

A linear actuator contains a housing having a first end and a second end. A hollow piston is positioned within the housing to slidably engage with an inner wall of the housing. A sealed gas chamber is formed within the hollow piston and contains stored gas for driving the piston upon activation of the actuator. 1. A linear actuator containing:a housing having a first end and a second end;a hollow piston rod contained within said housing, said piston rod having a third end and a fourth end, the third end proximate to the first end and the fourth end proximate to the second end;a sealed gas chamber formed within the hollow piston rod;a stored gas contained within the sealed gas chamber; andan initiator fixed at the first end and proximate to the third end of the piston, for releasing the stored gas upon activation of the actuator to thereby drive the piston rod.2. The linear actuator of further comprising:a first plug fixed on said piston rod at said third end;a surface area on said first plug in operable communication with said stored gas upon actuation of said linear actuator, for propelling said piston rod.3. The linear actuator of further comprising a burst shim fixed to said hollow piston rod at said third end claim 1 , for sealing said gas chamber.4. The linear actuator of wherein said first plug comprises:an inner wall formed on said housing, said inner wall having an inner diameter;a first flange formed on said third end, said first flange having a first outer diameter slidably engaged with said inner diameter;a second flange formed on said third end, said second flange positioned closer to said initiator and said second flange having a second outer diameter smaller than said first outer diameter; andan annular conduit formed between said inner diameter and said second flange.5. The linear actuator of further comprising:an outer annular wall firmed between said first flange and said second flange of the first plug; andan annular plenum formed between said ...

GAS GENERATORS, LAUNCH TUBES INCLUDING GAS GENERATORS AND RELATED SYSTEMS AND METHODS

Gas generators may be utilized for launching a projectile. Launch tubes may include gas generators. Methods of launching a projectile may include utilizing gas generators to impart an initial velocity to a projectile. 1. A gas generator for use in launching a projectile , comprising: a first plenum;', 'a second plenum adjacent to the first plenum;', 'a first plurality of apertures in the housing extending from the first plenum to the second plenum in a first direction transverse to the longitudinal axis of the housing; and', 'a second plurality of apertures in the housing, the second plurality of apertures extending from the second plenum to an exterior portion of the housing in a second direction along the longitudinal axis of the housing;, 'a housing having a longitudinal axis and configured to be positioned within a launch tube for a projectile, the housing comprisingat least one propellant positioned within the first plenum of the housing; andan initiator for igniting the at least one propellant, the initiator positioned proximate to the at least one propellant in the housing.2. The gas generator of claim 1 , wherein the first plenum is positioned at a central portion of the housing.3. The gas generator of claim 2 , wherein the second plenum substantially surrounds the first plenum.4. The gas generator of claim 3 , wherein the housing has a substantially cylindrical shape.5. The gas generator of claim 1 , wherein the housing has an outer surface sized and configured to be positioned adjacent to an inner surface of the launch tube when the gas generator is disposed within the launch tube.6. The gas generator of claim 1 , wherein the housing comprises:an outer housing; andan inner housing disposed at least partially within the outer housing, wherein the first plenum is located within the inner housing, wherein the second plenum is located between the inner housing and the outer housing, and wherein the first plurality of apertures and the second plurality of ...

ADAPTIVE GAS GENERATOR FOR AIRBAG

A gas generator for a protective airbag includes at least one pressurized gas chamber, a first actuator arranged so as to open the pressurized gas chamber, and a diffusion chamber including at least one diffusion hole defining a communication surface. Outside the diffusion chamber, the gas generator includes an obturator having a second actuator. The obturator is arranged in a first position in which it defines a first diffusion surface. The second actuator is arranged so as to allow it to go into a second position in which it defines a second diffusion surface. 1. A gas generator for an airbag comprising:at least one pressurized gas chamber;a first actuator for opening the gas pressurized gas chamber;a diffusion chamber including a communication surface arranged for diffusing gases from the at least one pressurized gas chamber towards the airbag; andan obturator located outside the diffusion chamber and including a second actuator, the obturator arranged so as to be locked in a first position in which the obturator and the communication surface cooperate to define a first diffusion surface;wherein the second actuator is arranged for unlocking the obturator in order to allow the obturator to go into a second position in which the obturator and communication surface cooperate to define a second diffusion surface area greater than the first diffusion surface area.2. The gas generator according to claim 1 , wherein the second diffusion surface area is lower than the communication surface area.3. The gas generator according to claim 1 , wherein the second diffusion surface area is equal to the communication surface area.4. The gas generator according to claim 1 , further comprising a second pressurized gas chamber claim 1 , the diffusion chamber arranged between the first and second pressurized gas chambers claim 1 , the first actuator arranged for opening both pressurized gas chambers.5. The gas generator according to claim 1 , wherein the obturator comprises includes ...

ASPIRATING AIRBAG ASSEMBLIES

Airbag cushion assemblies for aspirating ambient air to enhance inflation. Some embodiments may comprise an inflation module comprising an inflator and a plurality of high-velocity nozzles fluidly coupled with the inflator and configured to deliver inflation gas from the inflator into an airbag cushion. A housing coupled to the airbag cushion, may comprise an aspiration inlet configured to allow for receipt of ambient air into the airbag cushion during inflation of the airbag cushion. The plurality of high-velocity nozzles may be configured to, upon actuation of the inflator, draw ambient air into the airbag cushion along with the inflation gas from the inflator. In some embodiments, a valve assembly may be provided that is configured to open upon actuation of the inflator and to close following inflation of the airbag cushion to prevent air and inflation gas from exiting through the aspiration inlet. 1. An airbag cushion assembly , comprising:an airbag cushion; an inflator;', 'a plurality of high-velocity nozzles fluidly coupled with the inflator, wherein the plurality of high-velocity nozzles is configured to deliver inflation gas from the inflator into the airbag cushion; and', 'a housing coupled to the airbag cushion, wherein the housing comprises an aspiration inlet configured to allow for receipt of ambient air into the airbag cushion during inflation of the airbag cushion, and wherein the plurality of high-velocity nozzles is configured to, upon actuation of the inflator, draw ambient air into the airbag cushion along with the inflation gas from the inflator; and, 'an inflation module, comprisinga valve configured to open upon actuation of the inflator, wherein the valve is configured to close during inflation of the airbag cushion to prevent air and inflation gas from exiting through the aspiration inlet.2. The airbag cushion assembly of claim 1 , wherein the valve is configured to automatically close at a predetermined stage during inflation of the airbag ...

Propellant Composition

Monopropellants comprising nonstoichiometric ratios of 2-hydroxyethylhydrazine cation (HEH+) and nitrate anion and water have improved thermal stability and fluid characteristics compared to nonstoichiometric ratios of HEH+ and nitrate anion without water. These monopropellants are useful for gas generators and rocket motors.

Hypergolic bipropellants

A hypergolic bipropellant. The hypergolic bipropellant includes an ionic liquid fuel and nitric acid, which is operable as an oxidizer. The ionic liquid fuel comprises an open chain amine having at least one quarternized nitrogen and a dicyanamide anion.

Use of type of compounds as energy-containing material

The present application belongs to the field of energetic compounds, and particularly relates to the use of a perovskite-type compound ABX3 as an energetic material. As a finding of the present application, the structural characteristics of the perovskite type enables the type of compound to be highly stable, thus overcoming the unsafety of an explosive having poor stability in the prior art. Meanwhile, the structural characteristics of the compound, such as rich energetic ligands, as well as the alternately arranged oxidizing energetic anions and reducing organic cations in the space, endow the compound with excellent performance on instantaneously releasing energy at detonation. The resulting three-dimensional structure allows the compound to not only have an energetic material effect but also overcome shortcomings of some existing energetic materials.

Device for controlling a rate of gas pressure increase in a gun barrel.

A device is disclosed for controlling a rate of gas pressure increase generated by a propellant for propelling a projectile from an upstream towards a downstream end of a gun barrel. The device includes a first surface area defined by the propellant and a deterrent applied to a second surface area defined by the first surface area, the second surface area being less than the first surface area. The arrangement is such that the second surface area defines a deterrent free third surface area of the propellant. A primer is operatively disposed relative to the third surface area such that when the primer is activated, the third surface area of the propellant is ignited. The arrangement is such that firstly, while the third surface area is burning and generating gas between the upstream end of the gun barrel and the projectile, the rate of gas pressure increase begins to propel the projectile towards the downstream end of the gun barrel. Secondly, the third surface area of the propellant while burning exposes a progressively increasing surface area of the propellant for burning together with an associated increased generation of gas, the increasing surface area of the propellant defining a concave crater, the crater having a wall which progressively increases in surface area during the burning such that the rate of increase in gas pressure continues to increase for accelerating the projectile towards the downstream end of the gun barrel.

ACTUATOR AND VEHICLE PROTECTION SYSTEM

An actuator, especially for a vehicle protection system, comprises at least one wire () variable in shape depending on temperature made from a shape memory alloy and an elongate pyrotechnical element () connected to the shape-variable wire () so that upon ignition of the pyrotechnical element () the wire () is heated and experiences a change of length. The vehicle protection system is, for example, an airbag system comprising an airbag and a regulating mechanism for the internal airbag pressure, wherein the wire () of the actuator () is connected to the regulating mechanism so that a change of shape of the wire () exerts a force on the regulating mechanism. 122-. (canceled)23141214141212. An actuator , especially for a vehicle protection system , comprising at least one wire () variable in shape depending on temperature made from a shape memory alloy and comprising an elongate pyrotechnical element () connected to the shape-variable wire () so that the wire () is heated upon ignition of the pyrotechnical element () and experiences a change of length , wherein the pyrotechnical element () is a shock tube.241214. The actuator according to claim 23 , wherein the pyrotechnical element () substantially extends over the entire length of the shape-variable wire ().25141212. The actuator according to claim 23 , wherein the wire () extends at least in portions through the pyrotechnical element () and/or at least in portions outside of the pyrotechnical element ().2614. The actuator according to claim 23 , wherein the shape-variable wire () extends in a curved claim 23 , especially helical or zigzag form at least in portions.271228. The actuator according to claim 23 , wherein the pyrotechnical element () includes heat insulation ().2814. The actuator according to claim 23 , wherein the wire () deforms upon heating so that it generates a tensile force (F).291412. The actuator according to claim 23 , wherein prior to activation of the actuator the wire () projects from one end ...

Setting Tool for Downhole Applications

A setting tool having a tool body, a chamber configured to contain a non-explosive fuel configured to generate gas and plasma, a cavity, a bleed sub located between the chamber and the cavity. The bleed sub is configured to bleed pressure from the chamber to the cavity after the non-explosive fuel has been initiated. The setting tool also includes a piston disposed within the cavity oriented to stroke in a first direction after the non-explosive fuel has been initiated. The piston may divide the cavity into an upper volume that may receive the pressure increase from the bleed sub and a lower volume. The setting tool may also include a shaft mechanically connected to the piston within the lower volume of the cavity. The shaft may include a dampening conduit configured to drain a fluid from the lower volume after the non-explosive fuel has been initiated. 1. A setting tool , comprising:a tool body coupled to a well tool configured to be deployed downhole within a well;a chamber within the tool body configured to contain a non-explosive fuel configured to be initiated to generate gas and plasma;a cavity within the tool body;a bleed sub located within the tool body between the chamber and the cavity, wherein the bleed sub is configured to bleed pressure from the chamber to the cavity after the non-explosive fuel has been initiated;a piston disposed within the cavity and oriented to stroke in a first direction in response to a pressure increase in the cavity after the non-explosive fuel has been initiated, wherein the piston divides the cavity into an upper volume and a lower volume, and wherein the upper volume receives the pressure increase from the bleed sub; anda shaft mechanically connected to the piston within the lower volume of the cavity, wherein the shaft comprises a dampening conduit configured to drain a fluid from the lower volume after the non-explosive fuel has been initiated.2. The well tool of claim 1 , wherein the dampening conduit is configured to ...

BURSTING DIAPHRAGM, ESPECIALLY FOR AN INFLATOR, INFLATOR, AIRBAG MODULE AND VEHICLE SAFETY SYSTEM

The invention relates to a bursting diaphragm () for an inflator () comprising at least one predetermined breaking contour () destroyable upon activation of the inflator (), wherein a shock wave can be generated. In accordance with the invention, the predetermined breaking contour () includes a through hole () on at least one end point (), especially on all end points (). 11410241024252727. A bursting diaphragm () for an inflator () comprising at least one predetermined breaking contour () destroyable upon activation of the inflator () , wherein a shock wave can be generated , and wherein the predetermined breaking contour () has a through hole () on at least one end point () , especially on all end points ().224. The bursting diaphragm according to claim 1 , wherein the predetermined breaking contour () is C-shaped and/or double C-shaped and/or H-shaped and/or T-shaped and/or star-shaped and/or circle segment-shaped and/or cross-shaped.31426. The bursting diaphragm according to claim 1 , wherein the bursting diaphragm () has an outer contour () configured to be cap-shaped and/or semicircular.425. The bursting diaphragm according to claim 1 , wherein the through hole () has a circular shape.525. The bursting diaphragm according to claim 1 , wherein the through hole () has at least an opening width claim 1 , especially a diameter of from 0.5 to 3.0 mm claim 1 , especially from 1.0 to 2.5 mm claim 1 , especially from 1.2 to 2.0 mm claim 1 , especially of 1.4 mm.624. The bursting diaphragm according to claim 1 , wherein the predetermined breaking contour () is formed by stampings and/or millings and/or notches and/or laser abrasions.71014. An inflator () comprising a bursting diaphragm () according to .8101514141110. An inflator () comprising at least one combustion chamber () filled with fuel and gas and having a discharge end claim 1 , comprising at least one igniter unit by which the fuel can be ignited claim 1 , and comprising at least one bursting diaphragm () ...

GAS GENERATOR

The present invention provides a gas generator, including: a cylindrical housing; an ignition device installed at a first end of the cylindrical housing, and a diffuser portion installed at a second end thereof; a flow channel forming member disposed inside the cylindrical housing and including a partition wall which separates a first chamber from a second chamber; a combustion chamber formed in the first chamber; a discharge passage formed in the second chamber; a first cylindrical space formed on the outside of the first circumferential wall and a first communication hole formed in the first circumferential wall; a second cylindrical space formed on the outside of the second circumferential wall and being in communication with the first cylindrical space, and a second communication hole formed in the second circumferential wall; a cylindrical filter disposed in the second cylindrical space; an outer diameter (d) of the first circumferential wall, an outer diameter (d) of the second circumferential wall and an outer diameter (d) of the cylindrical filter satisfying relationships of d>d and d≥d; and between the cylindrical filter and the inner wall surface of the cylindrical housing, the second cylindrical space facing the second communication hole via the cylindrical filter. 17.-. (canceled)8. A gas generator , comprising:a cylindrical housing;an ignition device installed at a first end of the cylindrical housing, and a diffuser portion provided with a gas discharge port and installed at a second end on an opposite side to the first end;a cylindrical flow channel forming member disposed inside the cylindrical housing such that a first end thereof faces the ignition device and a second end thereof on an opposite side to the first end faces the diffuser portion, the cylindrical flow channel forming member including a partition wall which separates a first chamber defined by a first circumferential wall on the side of the first end, from a second chamber defined by a ...

Rocket motor with energetic grain having region with energetic disposed therein

A rocket motor ( 20 ) includes a nozzle ( 22 ) and a solid propellant section ( 24 ) in communication with the nozzle. The solid propellant section includes a first energetic grain layer ( 38, 32 ) that has a top surface and a bottom surface, and a second energetic grain layer ( 40, 44 ) that has a top surface and a bottom surface. The second layer is located on top of the first layer. The bottom surface of the second energetic grain layer partially abuts the top surface of the first energetic grain layer, and the bottom surface of the second energetic grain layer and the top surface of the first energetic grain layer define a region ( 46, 48 ) therebetween. A powder energetic ( 49 ) is disposed in the region.

GAS-GENERATING PYROTECHNIC MONOLITHIC BLOCKS

A substantially cylindrical gas-generating pyrotechnical monolithic block has a thickness no lower than 10 mm, an equivalent diameter no lower than 10 mm, and a porosity lower than 5%; and a composition, given as weight percentages, which contains, for at least 94% of the weight thereof: +77.5% to 92.5% of guanidine nitrate, +5% to 10% of basic copper nitrate, and +2.5% to 12.5% of at least one inorganic titanate with a melting temperature higher than 2100 K. 1. A gas-generating pyrotechnic monolithic block , of substantially cylindrical shape , wherein: an equivalent diameter greater than or equal to 10 mm, and', 'wherein', 'a porosity below 5%; and'}], 'the gas-generating pyrotechnic monolithic block has a thickness greater than or equal to 10 mm,'} +77.5 to 92.5% of guanidine nitrate,', '+5 to 10% of basic copper nitrate, and', '+2.5 to 12.5% of at least one inorganic titanate whose melting point is above 2100 K., 'a composition of the gas-generating pyrotechnic monolithic block, expressed in percentage by weight, contains, for at least 94% of its weight2. The block as claimed in claim 1 , whose thickness is between 10 and 100 mm and/or whose equivalent diameter is between 10 and 100 mm.3. The block as claimed in claim 1 , whose porosity is less than or equal to 2%.4. The block as claimed in claim 1 , wherein the composition of the gas-generating pyrotechnic monolithic block contains said guanidine nitrate and said basic copper nitrate in a ratio claim 1 , R claim 1 , between 8.5 and 15 (8.5≦R≦15).5. The block as claimed in claim 1 , wherein said at least one inorganic titanate consists of at least one inorganic titanate selected from the group consisting of metal titanates and alkaline-earth titanates.6. The block as claimed in claim 1 , wherein said at least one inorganic titanate consists of strontium titanate (SrTiO) and/or calcium titanate (CaTiO) and/or aluminum titanate (AlTiO).7. The block as claimed in claim 1 , wherein said guanidine nitrate claim 1 , ...

INFLATOR

An inflator for inflating an inflatable device to which it is connected via fill tubes or in which it is positioned. The inflator comprises a power module assembly and an adaptor assembly intended to be threaded into or onto the threaded neck of a gas cylinder (not shown). The power module assembly employs one or more power primers that are fired when a tether is pulled to remove the actuator cup to release a spring-loaded actuator pin to fire the power primer(s). The escaping gases from the power primer(s) then drive a pierce pin to fracture a frangible seal allowing gas in the gas cylinder to then flow into the inflatable device and inflate the same. 1. An inflator for inflating an inflatable device with gas from a gas cartridge , comprising in combination:a power module assembly having an actuator pin reciprocatably mounted therein and an actuator spring for spring-loading said actuator pin that is held in a cocked, ready position until actuated;a ballistic module containing at least one power primer that is fired by said actuator pin when actuated, said power primer producing gas to drive a pierce pin into engagement with a frangible seal to release the gas from the gas cartridge through an adaptor assembly into the inflatable device.2. The inflator as set forth in claim 1 , further including at least one finger that captures the actuator pin under compression of said actuator spring until said finger releases said actuator pin.3. The inflator as set forth in claim 2 , further including a cap for maintaining said finger's capture of said actuator pin claim 2 , said cap being removable whereupon said finger releases its capture of said actuator pin to then actuate said power primer.6. The inflator as set forth in claim 1 , further including a syphon tube pivotably and fluidly connected to an output of said adaptor assembly allowing the tube claim 1 , when the gas cylinder is oriented horizontally claim 1 , to pivot downwardly toward the inside of the gas cylinder ...

GAS PRESSURE ACTUATOR AND METHOD OF ASSEMBLING THE SAME

The present invention relates to a gas pressure actuator and a method of assembling the gas pressure actuator. The gas pressure actuator includes a launcher having a cylindrical shape; a gas generator that is coaxial with the launcher, is disposed at a first axial end of the launcher, and generates a high-pressure gas when the gas pressure actuator is activated; and a hollow rocket part that is coaxial with the launcher, is open at the first axial end of the launcher, and closed at a second axial end of the launcher. A first axial end of the rocket part overlaps the gas generator in an axial direction before the gas pressure actuator is activated. 1. A gas pressure actuator , comprising:a launcher having a cylindrical shape;a gas generator that is coaxial with the launcher, is disposed at a first axial end of the launcher, and generates a high-pressure gas when the gas pressure actuator is activated; anda hollow rocket part that is coaxial with the launcher, the rocket part being open at the first axial end of the launcher and being closed at a second axial end of the launcher,wherein a first axial end of the rocket part overlaps the gas generator in an axial direction before the gas pressure actuator is activated.2. The gas pressure actuator as claimed in claim 1 , wherein the launcher includes a fixing bracket that is formed at the second axial end as an integral part of the launcher.3. The gas pressure actuator as claimed in claim 2 , further comprising:a flat end plate that includes an opening having a diameter greater than an outside diameter of a second axial end of the rocket part, the end plate being fixed together with the fixing bracket to an object.4. The gas pressure actuator as claimed in claim 3 , wherein the diameter of the opening of the end plate is less than an outside diameter of the first axial end of the rocket part.5. The gas pressure actuator as claimed in claim 3 , wherein the second axial end of the rocket part is positioned by the end plate ...

ACTUATOR

An actuator includes a gas generator that generates an actuating gas when actuated, a housing section that houses the gas generator and a pressing section that is deployable with an actuating gas in such a fashion as to be separated from the housing section. The pressing section and the housing section are slidable against each other. Either one out of sliding portions of the pressing section and housing section serves as an inner section that is located closer to a moving central axis of the pressing section than the other whereas the other out of the sliding portions of the pressing section and housing section serves as an outer section that surrounds the inner section. The gas generator is located closer to the moving central axis than the sliding portion of the pressing section and partially overlaps with a part of the pressing section in an inactive state. 1. An actuator comprising:a gas generator that generates an actuating gas when actuated;a housing section that houses and holds the gas generator; anda pressing section that is deployable, when pressed by an actuating gas generated by the gas generator, in such a fashion as to move forward relative to the housing section and be separated from the housing section, the pressing section comprising a sliding portion that is slidable against a sliding portion of the housing section such that the pressing section and the housing section are slidable against each other,wherein:either one out of the sliding portions of the pressing section and housing section serves as an inner section that is located closer to a moving central axis of the pressing section than the other whereas the other out of the sliding portions of the pressing section and housing section serves as an outer section that surrounds the inner section; andthe gas generator is located closer to the moving central axis than the sliding portion of the pressing section and partially overlaps with a part of the pressing section in an inactive state in a ...

PYROTECHNIC PRESSURE GENERATOR

An exemplary method of actuating an operational device includes activating a propellant in a pyrotechnic pressure generator, the pyrotechnic pressure generator comprising an elongated body having a first end, a second end, and a bore extending axially from a barrier to the second end, a piston slidably disposed in the bore, the propellant located in a chamber between the first end and the barrier, a gas outlet orifice through the barrier providing gas communication between the chamber, and a port at the second end in communication with the operational device; producing a gas in the chamber in response to activating the propellant, the gas escaping through the gas outlet orifice into the bore and the gas applying a force to the piston; moving the piston in a stroke from a position proximate to the barrier to a position proximate to the second end; communicating a pressure to the operational device that is equal to or greater than an operating pressure of the operational device in response to moving the piston; and actuating the operational device in response to communicating the pressure to the operational device. 1. A method of actuating an operational device that is associated with a well system and/or that is located subsea , the method comprising:activating a propellant in a pyrotechnic pressure generator, the pyrotechnic pressure generator comprising an elongated body having a first end, a second end, and a bore extending axially from a barrier to the second end, a piston slidably disposed in the bore, the propellant located in a chamber between the first end and the barrier, a gas outlet orifice through the barrier providing gas communication between the chamber, and a port at the second end in communication with the operational device;producing a gas in the chamber in response to activating the propellant, the gas escaping through the gas outlet orifice into the bore and the gas applying a force to the piston;moving the piston in a stroke from a position ...

Passenger airbag inflator and system for vehicle

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.

Gas generator and assembling method thereof

The present invention provides a gas generator, including: a housing with a gas discharge port; an igniter assembly and a gas generating agent in the housing; and a metallic cup of constant inner diameter covering the igniter to define a charging chamber. The igniter assembly includes a main body, including an ignition portion and a electro-conductive pin integrated with a metallic collar by a resin. The metallic collar has a fixing portion inserted into a hole in a bottom surface of the housing and a remaining portion projecting inward from the bottom surface of the housing, and a guide portion. An inner circumferential wall surface of the metallic cup and an outer circumferential wall surface of the fixing portion are press-fitted, and an annular gap is formed between the inner circumferential wall of the metallic cup member and an outer circumferential wall surface of the guide portion.

Pressurized Actuator

A linear actuator contains a housing having a first end and a second end. A hollow piston is positioned within the housing to slidably engage with an inner wall of the housing. A sealed gas chamber is formed within the hollow piston and contains stored gas for driving the piston upon activation of the actuator. 1. A linear actuator comprising:a hollow piston rod contained within said linear actuator, said hollow piston rod containing an inner wall;a sealed gas chamber defined by the inner wall of the hollow piston rod; anda pressurized gas contained within the sealed gas chamber prior to activation of the actuator.2. The linear actuator of further comprising a housing wherein the housing comprises a first end and a second end; and wherein the hollow piston rod comprises a third end and a fourth end claim 1 , the third end proximate to the first end and the fourth end proximate to the second end.3. The linear actuator of further comprising:an initiator fixed at the first end and proximate to the third end for releasing the pressurized gas upon activation of the actuator to thereby drive the piston rod.4. The linear actuator of further comprising:a plug fixed on the hollow piston rod at the third end;a surface area on the plug in operable communication with the pressurized gas upon actuation of the linear actuator, for propelling the hollow piston rod.5. The linear actuator of further comprising a burst shim fixed to the hollow piston rod at the third end claim 2 , for sealing the sealed gas chamber.6. The linear actuator of further comprising:an inner wall formed on the housing, the inner wall having an inner diameter;a first flange formed on the third end, the first flange having a first outer diameter slidably engaged with the inner diameter;a second flange formed on the third end, the second flange positioned closer to the initiator and the second flange having a second outer diameter smaller than the first outer diameter; andan annular conduit formed between the ...

GAS GENERATOR

A gas generator includes a bottom plate part which is a part of a housing, a cup-shaped member accommodating a transfer charge, a cylindrical filter accommodated in the housing, and an annular first pad member situated in a part on the side of the bottom plate part of a combustion chamber. The cup-shaped member is arranged to project toward inside the combustion chamber, and has a first extension part extending outwardly in the radial direction from a part on the side of an open end along the bottom plate part. The first pad member has a second extension part extending inwardly in the radial direction from an abutting part abutting on the inner circumferential face of the filter along the bottom plate part. By sandwiching the first extension part between the bottom plate part and the second extension part, the cup-shaped member is fixed to the bottom plate part. 1. A gas generator comprising:a housing in a shape of a short cylinder, the housing being made up of a top plate part and a bottom plate part that close axial end parts, and a peripheral wall part provided with a gas discharge opening, and containing a combustion chamber accommodating a gas generating agent,an igniter attached to said bottom plate part, and containing an ignition part accommodating an ignition charge that ignites in actuation,a cup-shaped member in a shape of a substantial cylinder opening in an end part on a side of said bottom plate part, the cup-shaped member containing a transfer charge chamber accommodating a transfer charge, and disposed to project toward inside said combustion chamber in such a manner that said transfer charge chamber faces said ignition part,a cylindrical filter situated inside said housing, and disposed to surround said combustion chamber in a radial direction of said housing, andan annular first pad member situated between said bottom plate part and said gas generating agent in a part of said combustion chamber on the side of said bottom plate part, and applied to ...

Enhanced Slag Formation For Copper-Containing Gas Generants

Gas generants comprising copper are provided that have improved slagging ability. In certain aspects, the gas generants include a fuel, an oxidizer comprising basic copper nitrate, and a large particle size endothermic slag-forming component, such as aluminum hydroxide (Al(OH)3). The gas generants may be cool burning, e.g., having a maximum flame temperature at combustion (Tc)≤about 1,900K (1,627° C.). The disclosure also provides methods of enhancing slag formation for a gas generant composition that comprises copper. Such methods enhance slag formation during combustion of the gas generant composition by at least 50%.

HYDROGEN PEROXIDE CATALYST

A catalyst for decomposing high-concentration hydrogen peroxide comprises an active layer on a carrier comprising gamma-phase alumina. The carrier can also comprise aluminium, with the gamma-phase alumina forming a passivating layer on the surface of the aluminium. The active layer can comprise platinum. Apparatus for decomposing hydrogen peroxide can include the catalyst in a decomposition chamber arranged to receive hydrogen peroxide. The apparatus can be used as a thruster, comprising a nozzle arranged to generate thrust by directing exhaust gases in a specific direction. For example, the thruster can be a monopropellant, bipropellant, or hybrid thruster. In other embodiments, the apparatus can be used as a gas generator or a fuel cell. 1. Apparatus comprising:a decomposition chamber comprising an inlet arranged to receive high-concentration hydrogen peroxide; anda catalyst disposed in the decomposition chamber to catalyse decomposition of the high-concentration hydrogen peroxide received through the inlet, the catalyst comprising an active layer on a carrier comprising gamma-phase alumina.2. The apparatus of claim 1 , wherein the carrier further comprises aluminium and the gamma-phase alumina is disposed on the surface of the aluminium as a passivation layer.3. The apparatus of claim 1 , wherein the active layer comprises platinum.4. The apparatus of claim 1 , further comprising:a reservoir storing hydrogen peroxide with a concentration of 80% to 100%, the reservoir being arranged to provide the hydrogen peroxide to the inlet.5. The apparatus of claim 1 , wherein the catalyst is in pellet claim 1 , granule or monolithic form.6. The apparatus of claim 1 , wherein the apparatus is a thruster and further comprises:a nozzle in fluid communication with the decomposition chamber, the nozzle being arranged to provide thrust by directing gas produced during decomposition of the hydrogen peroxide.7. The apparatus of claim 6 , wherein the apparatus is a bipropellant ...

Gas Generator Assembly For An Airbag Module

The invention relates to a gas generator assembly for an airbag module of a motor vehicle, which is equipped for inflating a gas bag of the airbag module. The gas generator assembly comprises a generator housing, with a gas set arranged in the generator housing, from which a gas can be generated on ignition, an ignition device for igniting the gas bag, a volume compensating element which acts on the gas set under elastic pretension and which is designed as spring element, and a filter for filtering gases generated by means of the gas set, which are released from the generator housing. The volume compensating element is formed of a filter material and is arranged in the generator housing such that gases generated in the generator housing are filtered by the volume compensating element, before they exit from the generator housing. 1. A gas generator assembly for an airbag module of a motor vehicle , which is equipped for inflating a gas bag of the airbag module , comprising a generator housing ,a gas set arranged in the generator housing, from which a gas can be generated on ignition,an ignition device for igniting the gas set,a volume compensating element which acts on the gas set under elastic pretension and which is designed as spring element, anda filter for filtering gases generated by means of the gas set, which are released from the generator housing,wherein the volume compensating element comprises a filter material and is arranged in the generator housing such that gases generated in the generator housing are filtered by the volume compensating element, before they exit from the generator housing.2. The gas generator assembly according to claim 1 , wherein the volume compensating element forms the only component provided within the generator housing for filtering gases generated therein.3. The gas generator assembly according to claim 1 , wherein in the wall of the generator housing outflow openings are provided for releasing gases generated in the generator ...

GAS-PRODUCING MATERIAL

The present invention relates to gas-producing materials, methods of forming gas-producing materials, and uses of gas-producing materials. The gas-producing materials comprise a comminuted foamed polymer, a nitrogen-containing fuel and an oxidiser. The gas-producing materials may be used to suppress a fire. 1. A method of forming a gas-producing material , the method comprising comminuting a foamed polymer to form a comminuted foamed polymer and combining the comminuted foamed polymer with a nitrogen-containing fuel and an oxidiser.2. The method of claim 1 , wherein the foamed polymer is selected from phenolic resin foams claim 1 , polystyrene foams claim 1 , polyurethane foams claim 1 , polyethylene foams claim 1 , polyvinylchloride foams claim 1 , polyvinylacetate foams claim 1 , polyester foams polyether foams claim 1 , and foam rubber.3. The method of claim 2 , wherein the foamed polymer is a phenolic resin foam.4. The method of any of to claim 2 , wherein the foamed polymer has an average cell diameter of from 0.5 to 5 mm claim 2 , preferably 0.5 to 1 mm claim 2 , more preferably 2 to 3 mm.5. The method of any of to claim 2 , wherein the foamed polymer is open-cell.6. The method of any of to claim 2 , wherein the comminuted foamed polymer has an average particle size in the range from of 1 to 200 μm claim 2 , preferably 10 to 150 μm claim 2 , more preferably 25 to 100 μm.7. The method of any of to claim 2 , wherein the comminuting of the foamed polymer is carried out using a grinding mill claim 2 , such as a ball mill.8. The method of any of to claim 2 , wherein the method further comprises forming the foamed polymer by a curing reaction between:(a) a liquid resole; and(b) an acid hardener for the resole.9. The method of claim 8 , wherein an insoluble particulate solid is present in the curing reaction.10. The method of claim 9 , wherein the insoluble particulate solid is present in an amount of at least 5% by weight of the liquid resole.11. The method of any ...

Method for the Degassing of Hypergolic Propellants

A method for the degassing of hypergolic propellants includes introducing hypergolic propellant into a vacuum-tight vessel, cooling the vacuum-tight vessel containing the hypergolic propellant, and applying a pressure that is reduced as compared to the atmospheric pressure to the hypergolic propellant.

DEVICE COMPRISING A GAS GENERATOR TO PRODUCE A FLOW OF COMPRESSED GAS

A device is provided, designed as a jet pump, and having a gas generator to generate a flow of compressed gas, wherein the gas generator is equipped with a pyrotechnic propellant charge designed as a cutting or shaped charge. This pyrotechnic propellant charge can serve to generate a shock wave, as a flow of compressed gas, from the combustion gases of the propellant charge. The device is equipped with an inlet port of an inlet duct, which inlet port is arranged in the region of the smallest cross section of a venturi nozzle, such that surrounding air is sucked in through an exhaust port of the inlet duct as a result of the suction that arises. This difference in pressure can be used for various purposes. 1. A device , comprising:a gas generator including a pyrotechnic propellant charge; anda nozzle arrangement including a venture nozzle, an inlet duct, and an outlet duct,wherein a flow of compressed gas which can be generated using the pyrotechnic propellant charge can be introduced into the nozzle arrangement,wherein the inlet duct includes an inlet port,wherein the outlet duct includes an outlet port,wherein the inlet port is arranged in a region of the venturi nozzle,wherein the inlet port includes an exhaust port, the exhaust port being configured such that it can be positioned in a space,wherein the flow of the compressed gas can be modified with regard to at least one a compressed gas power and a compressed gas behavior over time according to one or more measured values registered by a pressure sensor, andwherein the exhaust port and the outlet port are arranged so as to be spatially separate.2. The device of claim 1 , wherein the inlet port is arranged in a region of a smallest cross-sectional area of the venturi nozzle.3. The device of claim 1 , further comprising:a control unit; andthe pressure sensor.4. The device of claim 1 , wherein the propellant charge is concave such that the flow of gas concentric to an axis can be generated.5. The device of claim 1 ...

Solid-Rocket Propellant Coatings

Coated Al—Li alloys, such as coated particles of Al—Li alloys, are provided. The coated alloys may be used in solid-rocket propellants. Additionally, methods of making such coated alloys, alloys coated with various methods, and solid-rocket propellants comprising such coated alloys are also provided.

GAS GENERATOR DRIVEN HYDRAULIC ACCUMULATOR

An exemplary gas generator driven hydraulic accumulator includes an elongated body having a first end, a second end, and a bore extending axially from a barrier to the second end; a piston slidably disposed in the bore; in use a gas generator located in a chamber between the first end and the barrier; an orifice through the barrier providing fluid communication between the chamber and the bore; in use a hydraulic fluid disposed in the bore between the piston and the second end whereby the hydraulic fluid is exhausted under pressure through a discharge port in response to activation of the gas generator; and in use a one-way flow control device connected in a flow path of the discharge port to permit one-way flow of the hydraulic fluid from the bore and to block return fluid from through the discharge port into the bore. 1. A gas generator driven hydraulic accumulator , comprising:an elongated body having a first end, a second end, and a bore extending axially from a barrier to the second end;a piston slidably disposed in the bore;in use a gas generator located in a chamber between the first end and the barrier;an orifice through the barrier providing fluid communication between the chamber and the bore;in use a hydraulic fluid disposed in the bore between the piston and the second end whereby the hydraulic fluid is exhausted under pressure through a discharge port in response to activation of the gas generator; andin use a one-way flow control device connected in a flow path of the discharge port to permit one-way flow of the hydraulic fluid from the bore and to block return fluid from through the discharge port into the bore.2. The gas generator driven hydraulic accumulator of claim 1 , wherein the gas generator is a propellant.3. The gas generator driven hydraulic accumulator of claim 1 , wherein a cross-sectional area of the discharge port decreases from an inlet end to an outlet end.4. The gas generator driven hydraulic accumulator of claim 1 , wherein the ...

GAS GENERATING COMPOSITION AND USE THEREOF IN PEDESTRIAN PROTECTION DEVICES

The invention relates to gas generating compositions for use in safety devices for vehicles. In particular, the invention relates to said compositions based on guanidine nitrate used in pedestrian protection devices. The composition substantially comprises 75 to 98% by weight of guanidine nitrate as fuel and 2 to 25% by weight of a burn accelerator selected from the group of the transition metal compounds, the metal nitrates, metal chlorates, metal perchlorates, ammonium perchlorate and mixtures thereof, wherein the transition metal compounds are selected from the compounds of the transition metals Ti, Cr, Mn, Fe, Cu, Zn, Zr and Mo and wherein the gas generating composition exhibits a burn rate of from 3 to 17 mm/s at 20 MPa. 1. A gas actuated pedestrian protection apparatus for protecting a pedestrian located outside an occupant compartment of a vehicle , comprising:a gas generating composition having a gas yield of at least 85%, the gas generating composition comprising 75 to 98 % by weight of guanidine nitrate as fuel and 2 to 25% by weight of a burn accelerator selected from the group of the transition metal compounds, the metal nitrates, metal chlorates, metal perchlorates, ammonium perchlorate and mixtures thereof;wherein the transition metal compounds are selected from the compounds of the transition metals Ti, Cr, Mn, Fe, Cu, Zn, Zr and Mo;wherein the gas generating composition has a burn rate of 3 to 17 mm/s at 20 MPa;wherein the gas generating composition exhibits an oxygen balance of −10% to −27%; andwherein the gas generating composition exhibits a combustion temperature of not more than 1650 K.2. The pedestrian protection apparatus recited in claim 1 , further comprising:an inflator in which the gas generating composition is stored; and a pedestrian protection device adapted to be activated by gas produced by the gas generating composition.3. The pedestrian protection apparatus recited in claim 1 , wherein the oxygen balance is within the range of from ...

GAS GENERATOR AND ASSEMBLING METHOD THEREOF

The present invention provides a gas generator, including: 1. A gas generator , comprising:a housing provided with a gas discharge port;an igniter assembly and a gas generating agent accommodated in the housing, the igniter assembly and a gas generating agent accommodated in the housing, the igniter assembly including an igniter main body, which includes an ignition portion and an electro-conductive pin, being integrated with a metallic collar by a resin; a fixing portion including an insertion portion inserted into a hole in a bottom surface of the housing, and', 'a guide portion formed by the resin and being axially in connection with the fixing portion, a portion of the metallic cylindrical member corresponding to the fixing portion and the resin having a constant diameter;, 'the metallic collar having,'}the guide portion including a second guide portion formed axially in contact with the fixing portion, and a first guide portion formed axially in contact with the second guide portion;the metallic cylindrical member and the metallic collar satisfying{'b': 1', '6', '1', '6, 'D=D, where D is an outer diameter of the fixing portion and D is an outer diameter of the first guide portion,'}{'b': 1', '7', '7, 'D>D, where D is an outer diameter of the second guide portion,'}{'b': 1', '6', '1', '1, 'D=D≧R, where R is an inner diameter of the metallic cylindrical member; and'}the metallic cylindrical member being fixed in a state in which an inner circumferential wall surface of the metallic cylindrical member and an outer circumferential wall surface of the fixing portion are press-fitted, and an annular gap is formed between the inner circumferential wall surface of the metallic cylindrical member and an outer circumferential wall surface of the second guide portion, and the inner circumferential wall surface of the metallic cylindrical member and an outer circumferential wall surface of the first guide portion are abutted against each other.2. The gas generator ...

Copolymerized Bis-(Ethylene Oxy) Methane Polysulfide Polymer and Hydroxyl Terminated Poly Butadiene as a Solid Fueled Ramjet Fuel

The application relates to a Ramjet solid fuel having an ignition temperature of less than 400° C., the fuel comprising a bis-(ethylene oxy) methane polysulfide polymer (BMPP) and hydroxyl-terminated polybutadiene (HTPB), the copolymer having a BMPP/HTPB weight ratio of from 1/3 to 3/1; and the fuel comprising at least 85 weight % copolymer. The BMPP comprises from 5 to 8 weight percent mercaptan. Furthermore, the BMPP is selected from 1. A Ramjet solid fuel having an ignition temperature of less than 400° C. , the fuel comprising a copolymer of bis-(ethylene oxy) methane polysulfide polymer (BMPP) and hydroxyl-terminated polybutadiene (HTPB) , the copolymer having a BMPP/HTPB weight ratio of from 1/3 to 3/1; and the fuel comprising at least 85 weight % copolymer;wherein the BMPP comprises from 5 to 8 weight percent mercaptan; {'br': None, 'sub': a', '2', 'c', '2', 'b, 'HS(RSS)CHCH((SSR)CSH)CH(SSR)SH\u2003\u2003a)'}, 'and wherein BMPP is selected from'}{'sub': 2', '2', '2', '2', '2, 'Where R=—(CH)OCHO(CH)—'} {'br': None, 'sub': 2', '4', '2', '2', 'n, 'H(SCHOCHOCH4S)H\u2003\u2003b)'}, 'And a+b+c<7; and'}Where n=7.2. The Ramjet solid fuel of further comprising between 10 and 16 weight percent IPDI (Isophorone diisocyanate) claim 1 , and less than 1 weight percent dibutyltin.3. The Ramjet solid fuel according to claim 1 , wherein the ignition temperature is less than 312° C.4. A method of making Ramjet solid fuel having an ignition temperature of less than 400° C. claim 1 , comprising the steps of:combining components to form a fuel composition, the components of the composition including a copolymer of bis-(ethylene oxy) methane polysulfide polymer (BMPP) and hydroxyl-terminated polybutadiene (HTPB), the copolymer having a BMPP/HTPB weight ratio of from 1/3 to 3/1; and the fuel comprising at least 85 weight % copolymer;wherein the BMPP comprises from 5 to 8 weight percent mercaptan; {'br': None, 'sub': a', '2', 'c', '2', 'b, 'HS(RSS)CHCH((SSR)CSH)CH(SSR)SH\u2003\ ...

PYROTECHNIC DRIVE DEVICE

A pyrotechnic drive device includes a housing () provided with a combustion chamber () having pyrotechnic material () as well as an activation device (). The combustion chamber is delimited at least in an initial state on all sides by combustion chamber walls () formed in at least one partial region by respective pressure-receiving surface or respective pressure-receiving element (). Each pressure-receiving impact of a pressure-receiving element () is impacted after the activation of the pyrotechnic material () in such a way by the gas pressure generated in this manner that the pressure-receiving element () is moved and/or deformed () and/or a mechanical impulse is thus transmitted via the pressure-receiving element () to an element to be driven () so that a connected substance () is transmitted. The residual volume of the combustion chamber (), in which no pyrotechnic material () is provided in the initial state, is filled with a liquid, a gel-like or pasty filling material (), and/or a soft, rubber-like material. 1. A pyrotechnic drive device comprising:{'b': 3', '5', '15, 'a housing (), in which a combustion chamber () is arranged with a pyrotechnic material (),'}{'b': 13', '5', '15, 'an activation device () arranged in the combustion chamber () for activating the pyrotechnic material (),'}{'b': 5', '3', '7', '13', '17', '33', '35', '17', '35, 'wherein the combustion chamber () is delimited in at least one state of the pyrotechnic drive device by combustion chamber walls (, , , , , ), closed on all sides, which are formed in one or a plurality of partial regions each time by a respective pressure-receiving surface with a pressure-receiving element (, ),'}{'b': 17', '35', '15', '17', '35', '17', '35', '19', '25, 'wherein each pressure-receiving surface of each pressure-receiving element (, ) is impacted after the activation of the pyrotechnic material () in such a way by the pressure generated in this manner that the pressure-receiving element (, ) is moved and/or ...

GAS GENERANT COMPOSITIONS COMPRISING A THERMALLY STABLE CRYSTALLINE HYDRATE COMPOUND FOR COOLING COMBUSTION FLAME TEMPERATURE AND IMPROVING BALLISTIC PERFORMANCE

A gas generant composition for an automotive inflatable restraint system is provided with a fuel having a thermally stable crystalline hydrate compound with a water release temperature of greater than or equal to about 140° C. The thermally stable crystalline hydrate compound serves as a ballistic modifier, which can serve to increase burn rate, reduce pressure sensitivity, reduce temperature sensitivity, and the like. The thermally stable crystalline hydrate compound may be selected from the group consisting of: a copper phthalate hydrate, copper pyromellitate dihydrate, copper fumarate dihydrate, copper (3-nitrophthalate) dihydrate, and combinations thereof. 1. A gas generant composition for an automotive inflatable restraint system comprising a fuel having a thermally stable crystalline hydrate compound with a water release temperature of greater than or equal to about 140° C. measured by differential scanning calorimetry (DSC) with a heating rate of 5° C./minute with a tolerance of ±0.1° C./minute.2. The gas generant composition of claim 1 , wherein the fuel having a thermally stable crystalline hydrate compound is selected from the group consisting of: a copper phthalate hydrate claim 1 , copper pyromellitate dihydrate claim 1 , copper fumarate dihydrate claim 1 , copper (3-nitrophthalate) dihydrate claim 1 , and combinations thereof.3. The gas generant composition of having a sensitivity to temperature coefficient (σ) of less than or equal to about 0.2%/° C.4. The gas generant composition of having a burning rate variability πof less than or equal to about 0.25%/° C.5. The gas generant composition of having a linear burn rate of greater than or equal to about 18 mm per second at a pressure of about 21 megapascals (MPa) claim 1 , a linear burn rate pressure exponent of less than or equal to about 0.35 claim 1 , a gas yield of greater than or equal to about 5.7 moles/100 cm claim 1 , and a maximum flame temperature at combustion (T) of less than or equal to ...

COOL BURNING HYDRATE FUELS IN GAS GENERANT FORMULATIONS FOR AUTOMOTIVE AIRBAG APPLICATIONS

Cool burning hydrate fuels are provided for gas generant compositions for automotive inflatable restraint systems. The cool burning hydrate fuel is a compound comprising carbon, hydrogen, oxygen, a transition metal, and optionally nitrogen. The cool burning hydrate fuel is a transition metal salt of an organic compound or transition metal complex salt having (i) at least one functional group selected from the group consisting of: amide, imide, hydroxyl, carboxylic acid, and combinations thereof, (ii) an oxygen-to-carbon mole ratio of greater than or equal to about 0.5, (iii) at least one-half a water molecule of hydration, and (iv) an exothermic heat of formation of at least about −400 KJ/mole. The fuel may have a water release temperature of ≥about 140° C. The cool burning hydrate fuel may be one or more of copper cyanurate dihydrate, a copper melamine oxalate dihydrate, and a copper malonate hydrate. 1. A gas generant composition for an automotive inflatable restraint system comprising a cool burning hydrate fuel comprising carbon , hydrogen , oxygen , and a transition metal , wherein the cool burning hydrate fuel is a transition metal salt of an organic compound or a transition metal complex salt of an organic compound that:(i) comprises at least one functional group selected from the group consisting of: amide, imide, hydroxyl, carboxylic acid, and combinations thereof;(ii) has an oxygen-to-carbon mole ratio of greater than or equal to about 0.5;(iii) comprises at least one-half a water molecule of hydration; and(iv) has an exothermic heat of formation of at least about −400 KJ/mole.2. The gas generant composition of claim 1 , wherein the cool burning hydrate fuel further comprises nitrogen.3. The gas generant composition of claim 1 , wherein the cool burning hydrate fuel has a water release temperature of greater than or equal to about 140° C. measured by differential scanning calorimetry (DSC) with a heating rate of 5° C./minute with a tolerance of ±0.1° C./ ...

COMPOSITION FOR REACTIVE MATERIAL

A composition includes an alloy that has, by weight, 25-65% zirconium, 25-65% tungsten, and 6-25% of a combined amount of nickel in at least one of iron and cobalt. The alloy may be formed into a geometric body that has a density of 7.8 grams per cubic centimeter to 11.4 grams per cubic centimeter. 1. A composition of matter comprising: 25-65% zirconium;', '25-65% tungsten; and', '6-25% of a combined amount of nickel and at least one of iron and cobalt., 'an alloy including, by weight2. The composition as recited in claim 1 , wherein the alloy includes 5-20% nickel.3. The composition as recited in claim 1 , wherein the alloy includes 1-5% of at least one of iron and cobalt.4. The composition as recited in claim 1 , wherein the alloy includes iron and excludes cobalt.5. The composition as recited in claim 1 , wherein the alloy includes cobalt and excludes iron.6. The composition as recited in claim 1 , wherein the zirconium claim 1 , tungsten claim 1 , nickel claim 1 , and at least one of iron and cobalt are distributed throughout the alloy.7. The composition as recited in claim 1 , wherein the alloy consists of:25-65% zirconium;25-65% tungsten; and6-25% of a combined amount of nickel and at least one of iron and cobalt.8. The composition as recited in claim 1 , wherein the alloy consists essentially of:25-65% zirconium;25-65% tungsten; and6-25% of a combined amount of nickel and at least one of iron and cobalt.9. An article comprising:a geometric body formed of an alloy having a density of 7.8 grams per cubic centimeter to 11.4 grams per cubic centimeter, the density being selected with respect to a kinetic energy parameter of the geometric body, the alloy including zirconium, tungsten, nickel, and at least one of iron and cobalt.10. The article as recited in claim 9 , wherein the alloy claim 9 , by weight claim 9 , includes:25-65% zirconium;25-65% tungsten; and6-25% of a combined amount of nickel and at least one of iron and cobalt.11. The article as recited in ...

Well Livening Tool Based on Nitrogen Producing Chemistry

A well livening downhole tool for the in-situ production of nitrogen is provided. The well livening downhole tool may produce nitrogen in-situ in a well to lighten the fluid column and lift the well fluids. The well livening downhole tool may include sodium azide and other reactants to produce nitrogen and scavenge other reaction products to produce alkaline silicate and water. The well-livening downhole tool may include multiple modules each having nitrogen-producing reactants and ignition components such that each module may be activated independently to produce nitrogen at different depths. A process for lifting the well fluids using the well livening downhole tool is also provided. 1. A method for increasing production of fluids from a well having a wellbore extending into a formation having a hydrocarbon reservoir , the method comprising: a body defining an interior chamber, the interior chamber containing a plurality of reactants, the plurality of reactants comprising sodium azide;', 'an ignition component connected to a wireline, the ignition component comprising an igniter;, 'inserting a tool into the wellbore, the tool comprisinginitiating reaction of the sodium azide to produce nitrogen in-situ in the well.2. The method of claim 1 , wherein initiating reaction of the sodium azide comprises sending an electrical signal from the surface to the ignition component to generate heat and ignite the igniter.3. The method of claim 1 , wherein the plurality of reactants comprise potassium nitrate and silicon dioxide.4. The method of claim 3 , wherein the in-situ production of nitrogen results in the in-situ production of alkaline silicate.5. The method of claim 1 , wherein the ignition component comprises a bridgewire.6. The method of claim 1 , wherein the igniter comprises boron-potassium nitride.7. The method of claim 1 , wherein the body comprises a first body and the ignition component comprises a first ignition component claim 1 , wherein the tool comprises a ...

GAS GENERATOR

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. 1. A gas generator for an airbag comprising:a first pressurized gas reserve with a first discharge orifice,a second pressurized gas reserve with a second discharge orifice,a first mechanism comprising a first actuator arranged for opening the first and second pressurized gas reservea diffusion chamber arranged for diffusing towards the airbag the gas discharged by the first and second discharge orifices;a mixing chamber in direct communication with the first discharge orifice and the second discharge orifice, and including at least one first communication surface with the diffusion chamber; anda second mechanism having a second actuator and a mobile obturator between a first obstruction position, in which it obstructs a second communication surface of the mixing chamber with the diffusion chamber, and a second passage position, in which the second communication surface is free, the second actuator, when actuated, being arranged for moving the mobile obturator from one of the first or of the second position to the other position.2. The generator according to claim 1 , wherein the first communication surface is defined by at least one regulation orifice and in that the second communication surface is defined by at least one second regulation orifice distinct from the at least one first regulation orifice.3. The generator according ...

Gas generating compositions and methods of making and using thereof

Disclosed are gas generating compositions and methods of making and used them.

SETTING TOOL FOR DOWNHOLE APPLICATIONS

A setting tool for deploying a downhole tool within a wellbore is described herein. The setting tool uses an in situ non-explosive gas-generating power source to generate high-pressure gas, which drives a mechanical linkage to actuate the deployment of the downhole tool. According to certain embodiments the non-explosive gas-generating setting tool contains no hydraulic stages and may contain only a single piston. The setting tool may be fitted to provide different stroke lengths and can provide usable power over a greater percentage of its stroke length, compared to setting tools using explosive/pyrotechnic power sources. Methods of using a non-explosive gas-generating setting tool to deploy a downhole tool within a wellbore are also disclosed.

SOLID-PROPELLANT GAS DRIVEN COMPRESSOR FOR EVACUATION SLIDE INFLATION

An inflation system is disclosed. In various embodiments, the inflation system includes a solid-propellant gas generator; and a gas motor having a turbine coupled to the solid-propellant gas generator and a compressor configured for coupling to an inflatable device. 1. An inflation system , comprising:a solid-propellant gas generator; anda gas motor having a turbine coupled to the solid-propellant gas generator and a compressor configured for coupling to an inflatable device.2. The inflation system of claim 1 , wherein the solid-propellant gas generator is coupled to the turbine via a first conduit.3. The inflation system of claim 2 , wherein the compressor is configured for coupling to the inflatable device via a second conduit.4. The inflation system of claim 3 , wherein the compressor is configured to receive a low pressure air from an atmosphere and compress the low pressure air to provide a compressed air stream for inflating the inflatable device.5. The inflation system of claim 4 , wherein the turbine is configured to receive a high pressure gas stream generated by the solid-propellant gas generator and to exhaust the high pressure gas stream as a turbine exhaust stream to the atmosphere.6. The inflation system of claim 1 , further comprising a manifold having a first inlet coupled to the turbine claim 1 , a second inlet coupled to the compressor and an outlet configured for coupling to the inflatable device.7. The inflation system of claim 6 , wherein the first inlet is configured to receive a turbine exhaust stream exiting the turbine and the second inlet is configured to receive a compressed air stream exiting the compressor.8. The inflation system of claim 7 , wherein the outlet is configured to provide a mixed stream to the inflatable device claim 7 , the mixed stream comprising the turbine exhaust stream and the compressed air stream.9. The inflation system of claim 1 , further comprising a heat exchanger configured to receive a turbine exhaust stream ...

Gas driven dispensing device and gas generating engine therefor

The present invention provides a gas generating engine for driving a beneficial agent dispensing device. The engine comprising (a) a solid composition comprising an acidic compound or a basic compound, or a combination thereof, and (b) a means for maintaining substantially constant the surface area of the solid composition exposed to a reservoir fluid comprising water, or water and an acidic compound, or water and a basic compound, wherein in operation, the solid composition is exposed to the reservoir fluid which dissolves the solid composition and causes it to generate a gas, the gas being a driving fluid to dispense a beneficial agent. The present invention further provides a fluid driven dispensing device for delivering an agent into an environment of use, the device be driven by the gas generating engine.

Process for manufacturing a gas generating material

A process for manufacturing a gas generating material includes preparing a wet mixture of a metal azide and a metal oxide without prior mixing of the metal azide and metal oxide in dry form. The metal azide content of the gas generating material is controlled and the possibility of forming hazardous hydrazoic acid fumes is minimized by maintaining the temperature of the wet mixture of gas generating material between 20° C. and 30° C. The possibility of forming hydrazoic acid fumes is further reduced by maintaining the pH of the wet mixture of gas generating materials at or above 10.5. Excess liquid is removed from the wet mixture of gas generating materials so that the wet mixture has a moisture content of approximately 9%. The excess liquid from the wet mixture is recycled and used the formation of additional gas generating material. The wet mixture of gas generating materials, having a moisture content of approximately 9%, is formed through small openings to form extrudate of gas generating material.

Gas generant

The present invention includes a gas generator 10 that incorporates a gas generating composition 12 and a scavenging additive 16 in heterogeneous but vapor/gaseous communication with the gas generating composition 12 . The scavenging additive retains moisture/contaminants typically evolving over time at relatively higher temperatures. The present invention further includes a gas generating system 180 incorporating the gas generator 10.

Basic metal nitrate, method for producing the same and gas-generating agent composition

Gas generant composition

AZIDFREE, GAS-CREATING COMPOSITION

一种面向含能离子液体-双氧水的自点火催化剂及其制备方法

本发明公开了一种面向含能离子液体‑双氧水的自点火催化剂，属于催化剂技术领域。它是一种无机有机杂化离子盐，本发明针对现有含能离子液体和高浓度双氧水之间存在点火困难的技术瓶颈，发明了一种促进含能离子液体和双氧水快速自点火的催化剂。该催化剂为无机有机杂化离子盐，在含能离子液体中具有优异的溶解性。同时,本发明的催化剂和含能离子液体之间具有良好的相容性。本发明的催化剂在含能离子液体中的添加量在5‑25％之间，添加本发明的催化剂后，可以实现含能离子液体和双氧水的快速自点火行为，点火延迟时间小于100ms。

Method for manufacturing solid-fuel rocket engine charging from mixed rocket fuel

FIELD: engines and pumps. SUBSTANCE: method of manufacturing a charge from a mixed rocket fuel is carried out by vacuum thermal pressing of the powdered composition directly into the body of a solid-fuel jet engine. For this purpose, a powdered fuel mixture is placed in the engine casing, from the open side of the casing, a process cylinder temporarily placed, containing a carefully fitted piston with a gas outlet through which the air is removed from the fuel mixture. After pumping out the air, the body is heated, starting from the bottom and from the side surface. As the fuel mixture melts, the piston moves to the bottom, compressing the mixture until it completely turns into a melt. After the entire mixture is melted, the charge is cooled and the piston is removed. EFFECT: method enables to simplify the technology of fuel preparation as much as possible, to significantly shorten the period of equipping the engine and to fill the solid fuel rocket with fuel at the launch site, which eliminates the need to transport a charged engine. 4 dwg С 2 2626353 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) (11) : ма = (13) $ ох $5 С к < ® ВО к* а А т < о В: С2 (51) МПК ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ С06р 5/06 (2006.01) СОбВ 21/00 (2006.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015152505, 08.12.2015 (24) Дата начала отсчета срока действия патента: 08.12.2015 Дата регистрации: 26.07.2017 Приоритет(ы): (22) Дата подачи заявки: 08.12.2015 (43) Дата публикации заявки: 14.06.2017 Бюл. № 17 (45) Опубликовано: 26.07.2017 Бюл. № 21 Адрес для переписки: 117588, Москва, Новоясеневский пр-кт, 5, к. 1, кв. 26, Ребеко Алексей Геннадьевич (72) Автор(ы): Ребеко Алексей Геннадьевич (КП) (73) Патентообладатель(и): Ребеко Алексей Геннадьевич (КП) (56) Список документов, цитированных в отчете о поиске: КО 2226520 С2, 10.04.2004. КО 2167135 С2, 20.05.2001. КО 2316524 СТ, 10.02.2008. ТР 558128442 А, 01.08.1983. СВ 1232923 А, 26.05.1971. 0$ 3470273 А, 30.09.1969. ФИОШИНА М.А., ...

METHOD FOR IMPROVING MISSILE FUELS AND MISSILE FUEL / OPTIONS /

1. Способ улучшения ракетных топлив, содержащих хотя бы в одном из компонентов связанный азот, отличающийся тем, что к ракетному топливу добавляется мелкодисперсный бор или его горючие соединения.2. Способ по п. 1, отличающийся тем, что добавка бора составляет 1:1 к азоту по соотношению молекул, +-20%.3. Способ по п. 1, отличающийся тем, что упомянутыми соединениями являются бораны (гидриды бора), боргидриды, бориды, карбид бора.4. Способ по п. 1, отличающийся тем, что в топливо добавляется 0,0001-1% мелкодисперсного угля, графита, сажи, графена.5. Ракетное топливо, отличающееся от исходного тем, что выполнено по способу п. 1.6. Ракетное топливо, отличающееся тем, что имеет следующее соотношение: нитрата аммония с тетрабораном в соотношении 69,25:30,75, все +-10%.7. Ракетное топливо, отличающееся тем, что имеет следующее соотношение: нитрат аммония 59,40%, бериллий - 20,06%, диборан - 20,54%, все +-15%.8. Ракетное топливо, отличающееся тем, что имеет следующее соотношение: нитрат аммония - 56,85%+-15%, гидрид бериллия - 23,50%+-15%, и диборан - 19,65%+-15%.9. Ракетное топливо, отличающееся тем, что имеет следующее соотношение: нитрат аммония, гидрид бериллия, боргидрид бериллия - 56,85:15,67:27,48, все +-15%.10. Ракетное топливо, отличающееся тем, что имеет следующее соотношение: нитрат аммония 62,20%, бериллий - 21,00%, и бор - 16,80%, все +-15%.11. Ракетное топливо, отличающееся тем, что имеет следующее соотношение: динитрамида аммония (далее ДНА) ДНА - 63,26+-15%, бор - 36,74+-15%.12. Ракетное топливо, отличающееся тем, что имеет следующее соотношение: ДНА - 69,94+-15%, тетраборан - 30,06+-15%.13. Ракетное топливо, отличающееся тем, что имеет следующее соотношение: ДНА - 62,84+-15%, бериллий - 9,13+-9%, диборан - 28,03+-15%14. Ракетное топливо, отлич� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2014 119 365 A (51) МПК C06D 5/06 (2006.01) C06B 47/10 (2006.01) C06B 47/04 (2006.01) C06B 31/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ...

产气组合物及其制备和使用方法

公开产气组合物及其制备和使用方法。

AlH3Functional graphene composite material and preparation method and application thereof

一种AlH 3 /功能化石墨烯复合材料及其制备方法和应用，以AlH 3 与功能化石墨烯为起始原料，在常温下通过溶剂‑非溶剂法制备了AlH 3 /功能化石墨烯复合材料。包括：S1：将AlH 3 配置成悬浊液A；S2：配置功能化石墨烯分散液B；S3：将A与B充分混合后，滴加表面活性剂C、非极性溶剂D，完成AlH 3 与功能化石墨烯自组装。本发明工艺简单，易于操作，便于工业化生产，采用极微量的功能化石墨烯可使AlH 3 完全包覆且石墨烯包覆量可调节，由于石墨烯优良的力学性能和化学稳定性，在不影响AlH 3 氢含量的前提下，有效的提高了AlH 3 在推进剂等领域应有中的安全性。

Pyrotechnic gas generator for a vehicle occupant restraint system, comprises a chamber such as a pressure container containing a gas generating agent, which is present together with an aerogel powder and is a pyrotechnic solid propellant

The pyrotechnic gas generator (10) comprises a chamber (20) such as a pressure container containing gas generating agent, which is present together with an aerogel powder (44) and is a pyrotechnic solid propellant (22) having a mass-dependent gas yield of over 95%. The gas generating agent is a gas standing under pressure stored in the pressure container. The aerogel powder is separated from the propellant, is present in a mass ratio of 0.1-2 related to the agent and the compressed gases and is additionally present in a filter chamber downstream to the chamber with the agent. The pyrotechnic gas generator (10) comprises a chamber (20) such as a pressure container containing gas generating agent, which is present together with an aerogel powder (44) and is a pyrotechnic solid propellant (22) having a mass-dependent gas yield of over 95%. The gas generating agent is a gas standing under pressure stored in the pressure container. The aerogel powder is separated from the solid propellant, is present in a mass ratio of 0.1-2 related to the agent and the compressed gases, is additionally present in a filter chamber downstream to the chamber with the gas generating agent, and has a specific surface of 1500 m 3>/g, a gross density of 0.05-0.2 g/cm 3>, a particle size of 1-10 mu m and a porosity of 95-98%. Air dispersion means is used in the aerogel powder.

Energy composite and method for manufacturing thereof

본 발명의 에너지 복합체 및 이의 제조방법은 산화제와 금속 산화물 입자가 견고하게 결합된 과립상 입자로 제조할 수 있는 방법을 제공하여 산화제 입자와 금속 산화물 입자의 불균일 혼합으로 발생할 수 있는 반응 확산 거리를 단축시키고 고분자 바인더와의 혼합과 분산 과정에서 발생할 수 있는 금속 산화물의 균질화 문제를 해결한다. 따라서 본 발명은 연소 속도를 향상시킬 수 있으며, 고체 추진제, 우주 왕복선 로켓 부스터, 고체 추진 모터, 인공위성 발사용 로켓, 기체 발생기, 연막제, 자동차용 에어백, 화공품 등에 활용될 수 있는 이점이 있다.

Manufacturing method of high crush strength iridium catalyst using a bauxite for the hydrazine decomposition reaction in spacecraft thruster application

본 발명은 산처리 및 열처리를 수행하여 고온에서 고강도 특성을 나타낼 수 있도록 한, 우주비행체 추력기용 하이드라진 분해용 이리듐 촉매의 제조방법에 관한 것으로서, (1) 보오크사이트를 0.1 내지 10M의 농도의 산과 10 내지 14시간 동안 접촉시키는 산처리단계; (2) 상기 산처리단계 후, 고형분으로서의 보오크사이트를 상기 산으로부터 여과해내는 여과단계; (3) 상기 산처리된 보오크사이트를 500 내지 700℃의 온도범위의 열풍과 2 내지 6시간 동안 접촉시키는 열처리단계; (4) 상기 열처리된 보오크사이트에 촉매로서의 이리듐을 담지시키는 촉매담지단계; 및 (5) 상기 촉매담지된 보오크사이트의 촉매를 환원시키는 환원단계;들을 포함하여 이루어짐을 특징으로 한다. The present invention relates to a method for preparing an iridium catalyst for decomposition of hydrazine for a space vehicle thruster by performing acid treatment and heat treatment, wherein the acid has a concentration of 0.1 to 10M. An acid treatment step of contacting for 10 to 14 hours; (2) a filtration step of filtering the bauxite as a solid from the acid after the acid treatment step; (3) a heat treatment step of contacting the acid treated bauxite with hot air in a temperature range of 500 to 700 ° C. for 2 to 6 hours; (4) a catalyst supporting step of supporting iridium as a catalyst on the heat treated bauxite; And (5) a reduction step of reducing the catalyst of the catalyst-supported bauxite. 우주비행체, 하이드라진 추력기, 이리듐 촉매, 담체, 침전 알루미나, 보오크사이트 Space Vehicle, Hydrazine Thruster, Iridium Catalyst, Carrier, Precipitated Alumina, Bauxite