Abstract: A gas generator including a cup filled with gas generant molded articles that generate gas by combustion, and an ignitor on which an ignition agent is disposed. Each gas generant molded article is formed of smokeless powders containing nitrocellulose as its major ingredient. Each gas generant molded article includes an explosive containing a fuel agent containing a guanidine derivative and/or a tetrazole derivative and an oxidizing agent containing a metal nitrate and/or perchlorate. Thus, it is possible to provide a gas generator by which the amount of CO gas generated in operation can be reduced and the combustion speed can easily be controlled, and to provide a pretensioner system provided with the gas generator.

Abstract: A gas generator including a cup filled with gas generant molded articles that generate gas by combustion, and an ignitor on which an ignition agent is disposed. Each gas generant molded article is formed of smokeless powders containing nitrocellulose as its major ingredient. Each gas generant molded article includes an explosive containing a fuel agent containing a guanidine derivative and/or a tetrazole derivative and an oxidizing agent containing a metal nitrate and/or perchlorate. Thus, it is possible to provide a gas generator by which the amount of CO gas generated in operation can be reduced and the combustion speed can easily be controlled, and to provide a pretensioner system provided with the gas generator.

Abstract: A gas generator including a plug (24) having a header part (45) and two or more electrode pins (22, 23), a thin-film bridge (25) having electrode pads (41, 42), and a squib (10) in which upon supply of electric current to the thin-film bridge (25) via the electrode pins (22, 23), the thin-film bridge (25) is activated to ignite ignition materials (26, 27), wherein the thin-film bridge (25) is arranged into a hollow (32) prepared at the plug (24) in such a manner that the thin-film bridge (25) is kept approximately on a level with the head (35) of the electrode pins (22, 23) and the header part (45) of the plug (24), the thin-film bridge (25) is connected by wire bonding to the electrode pins (22, 23) at the electrode pad parts (41, 42), and at least either of the electrode pad (41) or (42) of the thin-film bridge (25) is connected by the wire bonding to a metal part of the header part (45) of the plug (24).

Abstract: Disclosed is a gas generant composition for a gas actuator used for activating a safety device, which contains (A) a nitrogen-containing organic compound, (B) a metal nitrate and/or a perchlorate, (C) a water-soluble polymer binder, and (D) a magnetic material. When compared with the conventional gas generant compositions, this gas generant composition is excellent in combustibility under low pressure conditions and reduced in CO gas generation during combustion. In this gas generant composition, (D) the magnetic material is preferably composed of a magnetic iron oxide.

Abstract: A gas generator including a plug (24) having a header part (45) and two or more electrode pins (22, 23), a thin-film bridge (25) having electrode pads (41, 42), and a squib (10) in which upon supply of electric current to the thin-film bridge (25) via the electrode pins (22, 23), the thin-film bridge (25) is activated to ignite ignition materials (26, 27), wherein the thin-film bridge (25) is arranged into a hollow (32) prepared at the plug (24) in such a manner that the thin-film bridge (25) is kept approximately on a level with the head (35) of the electrode pins (22, 23) and the header part (45) of the plug (24), the thin-film bridge (25) is connected by wire bonding to the electrode pins (22, 23) at the electrode pad parts (41, 42), and at least either of the electrode pad (41) or (42) of the thin-film bridge (25) is connected by the wire bonding to a metal part of the header part (45) of the plug (24).

Abstract: A micro gas generator with an automatic ignition function operated before being weakened by heat without impairing the cleanliness of exhaust gas, comprising gas generating agent, a cup body for filling the gas generating agent therein, and a holder formed integrally with squibs and fixedly sealing the squibs in the cup body, wherein an automatic igniting agent layer is put on the inner surface of the cup body.

Abstract: A gas generator including a housing, a combustion chamber formed in the housing, the combustion chamber being packed with gas generant to generate high temperature gas by burning and also having a filtering member, an igniter device, secured in the housing, for igniting and burning the gas generant packed in the combustion chamber, and a gas discharge hole, formed in the housing, to communicate between an interior of the housing and an exterior of the same through the combustion chamber and a gas flow pass, wherein a coolant is arranged in the gas flow pass.

Abstract: A micro gas generator with an automatic ignition function operated before being weakened by heat without impairing the cleanliness of exhaust gas, comprising gas generating agent, a cup body for filling the gas generating agent therein, and a holder formed integrally with squibs and fixedly sealing the squibs in the cup body, wherein an automatic igniting agent layer is put on the inner surface of the cup body.

Abstract: A gas generator comprising a housing (1), a combustion chamber (2) formed in the housing (1), the combustion chamber being packed with gas generant (3) to generate high temperature gas by burning and also having a filtering member (4), an igniter device (I), secured in the housing (1), for igniting and burning the gas generant (3) packed in the combustion chamber (2), and a gas discharge hole (6), formed in the housing (1), to communicate between an interior of the housing (1) and an exterior of the same through the combustion chamber (2) and a gas flow pass (S), wherein a coolant (21) is arranged in the gas flow pass (S).

Abstract: A gas generator S of the present invention comprises an elongated cylindrical housing 1 closed at both ends thereof, a combustion chamber 2, formed in the housing 1 at one end portion thereof, for packing gas generant 3 that is burnt to generate high temperature gas, an igniter device 5, fixed in the housing 1 at one end thereof, for igniting and burning the gas generant 3 packed in the combustion chamber 2, a filtering member 4, inserted in the housing 1 and set at the other end portion of the housing 1, and gas discharge holes 6 formed at the other end of the housing 1 to communicate between an inside of the housing 1 and an outside of the same with respect to an axial direction of the housing 1.

Abstract: An automatically ignitable enhancer agent composition comprising: (a) 5-aminotetrazole, (b) a metal powder, (c) at least one compound selected from the group consisting of potassium nitrate, sodium nitrate and strontium nitrate, and (d) molybdenum trioxide, and having a heating value of 4500 J/g or more. Further, the above composition which has an ability to generate gases in an amount of 0.5 mol to 2.0 mol per 100 g of the composition is also disclosed.