JPH046192A - Air-compositional gas generator - Google Patents
Air-compositional gas generatorInfo
- Publication number
- JPH046192A JPH046192A JP2104756A JP10475690A JPH046192A JP H046192 A JPH046192 A JP H046192A JP 2104756 A JP2104756 A JP 2104756A JP 10475690 A JP10475690 A JP 10475690A JP H046192 A JPH046192 A JP H046192A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- generated
- oxygen
- chamber
- gas generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007789 gas Substances 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 17
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 11
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 9
- 229910001882 dioxygen Inorganic materials 0.000 claims description 9
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 20
- 239000001301 oxygen Substances 0.000 abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 abstract description 20
- 238000005192 partition Methods 0.000 abstract description 5
- 206010021143 Hypoxia Diseases 0.000 abstract description 4
- 206010002660 Anoxia Diseases 0.000 abstract 1
- 241000976983 Anoxia Species 0.000 abstract 1
- 230000007953 anoxia Effects 0.000 abstract 1
- 239000000112 cooling gas Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 17
- 229910001873 dinitrogen Inorganic materials 0.000 description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 208000000122 hyperventilation Diseases 0.000 description 1
- 230000000870 hyperventilation Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は狭隘な室内で使用するに適した緊急用ガス源及
び推力発生ガス発生器に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an emergency gas source and a thrust-generating gas generator suitable for use in a narrow room.
従来、消火剤散布用高圧ボンベや自動車用エアバッグに
は無毒の窒素ガスや二酸化炭素が用いられており、また
投てき用の推力発生ガス発生器は火薬の燃焼が利用され
ているために高温の一酸化炭素、二酸化炭素及び窒素ガ
スが発生した＝
〔発明が解決しようとする課題〕・
地下室や密閉された狭隘な場所でこれらの窒息性ガスや
有毒ガスが発生すれば人体は酸素欠乏症や中毒を起こす
。Conventionally, non-toxic nitrogen gas and carbon dioxide have been used in high-pressure cylinders for dispersing fire extinguishers and airbags for automobiles, and thrust generating gas generators for throwing gas have used the combustion of gunpowder, resulting in high-temperature gas. Carbon monoxide, carbon dioxide, and nitrogen gases are generated = [Problem to be solved by the invention] - If these asphyxiating and toxic gases are generated in a basement or a closed, narrow place, the human body will suffer from oxygen deficiency and poisoning. wake up
本発明の目的は、これらの有毒ガスを発生せず、空気と
同じ組成の気体を発生するガス発生器を得ることにある
。An object of the present invention is to obtain a gas generator that does not generate these toxic gases and generates a gas having the same composition as air.
また、ガス発生源を高圧空気に求めると高圧ガス容器の
耐圧を保証するために重量及び体積が過大となる。更に
高圧ガスが開放され、断熱膨張すると温度が低下し、ガ
ス容積が減少するのでこれを補うためのガス量が更に必
要となるという欠点があった。Furthermore, if high-pressure air is used as the gas generation source, the weight and volume of the high-pressure gas container will be excessive in order to ensure the pressure resistance of the high-pressure gas container. Furthermore, when the high-pressure gas is released and expands adiabatically, the temperature drops and the gas volume decreases, so there is a drawback that an additional amount of gas is required to compensate for this.
本発明者は上記課題を解決すべく研究を重ねた結果、従
来、窒素ガスのみを発生するアジ化ナトリ、ラム系のガ
ス発生剤を用いたガス発生器の冷却器に酸素ガスを噴出
するためのガスボンベを配置することにより、ガス発生
剤より発生するガスに、酸素ガスが吹き込まれ空気と同
じ組成のガスが得られることを見出し本発明を完成する
に至った。As a result of repeated research to solve the above problems, the inventor of the present invention has discovered that oxygen gas can be injected into the cooler of a gas generator that conventionally uses a sodium azide or ram-based gas generating agent that only generates nitrogen gas. The present inventors have discovered that by arranging a gas cylinder, oxygen gas can be blown into the gas generated by the gas generating agent and a gas having the same composition as air can be obtained, and the present invention has been completed.
すなわち、アジ化ナトリウムと金属酸化物とからなるガ
ス発生剤を用いたガス発生器の冷却室に前記ガス発生器
より発生するガスの体積のの２０％に相当する量の高圧
酸素ガスを噴出させるための高圧酸素ガスボンベを配置
した空気組成ガス発生器を提供するものである。That is, high-pressure oxygen gas in an amount equivalent to 20% of the volume of gas generated from the gas generator is ejected into the cooling chamber of a gas generator using a gas generating agent made of sodium azide and metal oxide. The present invention provides an air composition gas generator equipped with a high-pressure oxygen gas cylinder.
本発明では、アジ化ナトリウムの分解によって発生ず−
る窒素ガスの体積の２０％に相当する酸素をガス発生器
の冷却室に吹き込む。In the present invention, - is not generated due to the decomposition of sodium azide.
Oxygen corresponding to 20% of the volume of nitrogen gas is blown into the cooling chamber of the gas generator.
通常、発生するガス中の酸素濃度が８％以下では乗員は
極めて短時間に意識を失う。また、酸素濃度が９〜１４
％でも重症の酸素欠乏症を起こし、１２〜１６％でも頭
痛又は吐き気症状を示す。Normally, if the oxygen concentration in the generated gas is less than 8%, the occupant will lose consciousness in an extremely short period of time. In addition, the oxygen concentration is 9 to 14
Even 12% to 16% can cause severe oxygen deficiency, and even 12% to 16% can cause headaches or nausea.
逆に酸素濃度が３０％を越える状態では過呼吸症状を起
こす。従って、窒素ガスに吹き込む酸素濃度は２０±４
％以内でなければならない。Conversely, when the oxygen concentration exceeds 30%, hyperventilation symptoms occur. Therefore, the oxygen concentration blown into the nitrogen gas is 20±4
Must be within %.
以下本発明を好ましい実施態様を示した図面に基づき説
明するが、本発明はこれらに限定されるものではない。The present invention will be explained below based on drawings showing preferred embodiments, but the present invention is not limited thereto.
第１図は繁栄、用エアバッグ用のガス発生器の一例を示
す断面略示図で、９はガス発生器本体である。FIG. 1 is a schematic cross-sectional view showing an example of a gas generator for an airbag, and 9 is a main body of the gas generator.
点火信号が点火器８に伝えられるとガス発生剤５に着火
するための熱ガスは着火噴出ロアからガス発生室６に侵
入し、ガス発生剤５に着火する。発生したガスは隔壁４
に開けられた噴出口１０から冷却室３に入りガス冷却用
金網２で冷却され、外部噴出口１から外部に噴出される
。When the ignition signal is transmitted to the igniter 8, hot gas for igniting the gas generating agent 5 enters the gas generating chamber 6 from the ignition blowout lower and ignites the gas generating agent 5. The generated gas is transferred to the partition wall 4
The gas enters the cooling chamber 3 through the gas-cooling nozzle 10, is cooled by the gas-cooling metal mesh 2, and is ejected to the outside through the external gas-cooling nozzle 1.
一方、酸素ボンベ１４に貯えられた高圧酸素は同じく点
火信号でバルブ１３が開放されるので導管１２を経て酸
素噴出口１１から冷却室３に流入し、ガス発生剤から発
生した窒素ガスと混合して空気組成に等しい混合ガスと
なり、噴出口１から外部に噴出される。On the other hand, the high-pressure oxygen stored in the oxygen cylinder 14 also flows into the cooling chamber 3 from the oxygen outlet 11 via the conduit 12 since the valve 13 is opened by the ignition signal, and mixes with the nitrogen gas generated from the gas generating agent. The mixed gas becomes a gas having a composition equal to that of air, and is ejected from the ejection port 1 to the outside.
第２図は推力発生ガス発生器の一例を示す断面略示図で
ある。FIG. 2 is a schematic cross-sectional view showing an example of a thrust generating gas generator.
本体９の点火器８に点火信号が伝えられると点火器８中
の点火薬（図示せず）が発火し、ガス発生室６内の窒素
ガス発生剤５が発火し、発生したガスは隔壁１５中の孔
１６から冷却濾過室３内に流入する。When the ignition signal is transmitted to the igniter 8 of the main body 9, the igniter (not shown) in the igniter 8 ignites, the nitrogen gas generating agent 5 in the gas generating chamber 6 ignites, and the generated gas is sent to the partition wall 15. It flows into the cooling filtration chamber 3 through the hole 16 therein.
一方、点火信号と同時に酸素開放弁１３が開放され、高
圧酸素ボンベ１４中の酸素ガスは導管１２を経て冷却濾
過室３内に流入する。冷却濾過室３内に流入する窒素及
び酸素ガスは予め空気組成になるように調整されている
ためにノズル１７から外部に噴出するガスは空気組成に
なっており、ノズル１７からは熱空気が噴出して推力を
発生させることができる。On the other hand, simultaneously with the ignition signal, the oxygen release valve 13 is opened, and the oxygen gas in the high-pressure oxygen cylinder 14 flows into the cooling filtration chamber 3 through the conduit 12. Since the nitrogen and oxygen gases flowing into the cooling filtration chamber 3 are adjusted in advance to have an air composition, the gas ejected to the outside from the nozzle 17 has an air composition, and hot air is ejected from the nozzle 17. can generate thrust.
次に本発明の推力発生ガス発生器の作動の一例を説明す
る。Next, an example of the operation of the thrust generating gas generator of the present invention will be explained.
直径１０ｃＩ１１、長さ２０ｃｍの推力発生ガス発生器
の窒素ガス発生室にアジ化ナトリウム、酸化鉄混合物を
板状に成形した窒素ガス発生剤１８０ｇを装填し、一方
酸素源としては内容積１８０ｄの圧力１００ｋｇ／ｃｎ
ｌに充填された酸素ボンベを装着した。この装置を推力
測定スタンドに取付け、作動試験を行なった。A nitrogen gas generating chamber of a thrust generating gas generator with a diameter of 10 cI11 and a length of 20 cm was loaded with 180 g of a nitrogen gas generating agent formed into a plate from a mixture of sodium azide and iron oxide, while the oxygen source was at a pressure of an internal volume of 180 d. 100kg/cn
A full oxygen cylinder was attached. This device was installed on a thrust measurement stand and an operational test was conducted.
点火信号を窒素ガス発生室内の点火器及び酸素開放弁に
与えると２００ｋｇの推力を０．１秒間発生した。一方
、排出ガスの一部をガス採取管に採取し、ガス分析を行
なうと窒素７９％、酸素２１％で、はぼ空気と同じ組成
であった。When the ignition signal was applied to the igniter and oxygen release valve in the nitrogen gas generation chamber, a thrust of 200 kg was generated for 0.1 seconds. On the other hand, a portion of the exhaust gas was collected into a gas sampling tube and analyzed and found to be 79% nitrogen and 21% oxygen, which is the same composition as air.
実施例で示したように本発明の空気組成ガス発生器より
発生するガスの組成は空気とほぼ同一であり、酸素欠乏
症を起こす恐れはない。As shown in the examples, the composition of the gas generated by the air composition gas generator of the present invention is almost the same as that of air, and there is no risk of causing oxygen deficiency.
アジ化ナトリウム系ガス発生剤では約１０００°Ｃの熱
窒素ガスを発生するが、本発明では高圧酸素ガスを冷却
室中に噴出させるので、窒素ガスとの混合が効率的であ
り、更に高圧からの断熱膨張によりガス温度が低下する
ので、冷却材の量を減少させることができる。A sodium azide-based gas generating agent generates hot nitrogen gas at approximately 1000°C, but in the present invention, high-pressure oxygen gas is ejected into the cooling chamber, so mixing with nitrogen gas is efficient, and furthermore, the high-pressure oxygen gas is injected into the cooling chamber. Since the adiabatic expansion of the gas reduces the gas temperature, the amount of coolant can be reduced.
一方、高圧空気のみをガス源とした装置でガスを噴出さ
せるとガス温度が低下するので噴出ガス量が減少し、装
置全体の重量を増大させなければならない。On the other hand, when gas is ejected using an apparatus using only high-pressure air as a gas source, the gas temperature decreases, the amount of ejected gas decreases, and the weight of the entire apparatus must increase.
第１図は緊急用エアバッグ用のガス発生器の断面図、第
２図は推力発生ガス発生器の一例を示す断面図である。
１・・・外部噴出口 １０・・・噴出口２・・・
金 網 １１・・・酸素噴出口３・・・冷却
（濾過）室 １２・・・導 管４・・・隔 壁
１３・・・バルブ。
５・・・ガス発生剤 １４・・・酸素ボンベ６・
・・ガス発生室 １５・・・隔 壁７・・・着火
噴出口 １６・・・孔８・・・点火器
１７・・・ノズル９・・・ガス発生器本体FIG. 1 is a sectional view of a gas generator for an emergency airbag, and FIG. 2 is a sectional view of an example of a thrust generating gas generator. 1... External spout 10... Spout 2...
Wire mesh 11... Oxygen outlet 3... Cooling (filtration) chamber 12... Conduit 4... Partition wall
13...Valve. 5... Gas generating agent 14... Oxygen cylinder 6.
... Gas generation chamber 15 ... Partition wall 7 ... Ignition spout 16 ... Hole 8 ... Igniter
17... Nozzle 9... Gas generator body
Claims (1)
剤を用いたガス発生器の冷却室に前記ガス発生器より発
生するガスの体積の２０％に相当する量の高圧酸素ガス
を噴出させるための高圧酸素ガスボンベを配置した空気
組成ガス発生器。1. To blow out high-pressure oxygen gas in an amount equivalent to 20% of the volume of gas generated from the gas generator into the cooling chamber of a gas generator using a gas generating agent consisting of sodium azide and metal oxide. An air composition gas generator equipped with a high-pressure oxygen gas cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2104756A JPH046192A (en) | 1990-04-20 | 1990-04-20 | Air-compositional gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2104756A JPH046192A (en) | 1990-04-20 | 1990-04-20 | Air-compositional gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046192A true JPH046192A (en) | 1992-01-10 |
Family
ID=14389335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2104756A Pending JPH046192A (en) | 1990-04-20 | 1990-04-20 | Air-compositional gas generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046192A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0933265A3 (en) * | 1997-12-05 | 2000-05-03 | Oea, Inc. | Dual inflator apparatus including pyrotechnic inflator |
| EP0978424A3 (en) * | 1998-08-04 | 2001-12-05 | TRW Airbag Systems GmbH & Co. KG | Gas generator with controlable liquid injection |
| WO2010043507A1 (en) * | 2008-10-17 | 2010-04-22 | Takata-Petri Ag | Gas generator assembly for a motor vehicle |
-
1990
- 1990-04-20 JP JP2104756A patent/JPH046192A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0933265A3 (en) * | 1997-12-05 | 2000-05-03 | Oea, Inc. | Dual inflator apparatus including pyrotechnic inflator |
| US6142518A (en) * | 1997-12-05 | 2000-11-07 | Oea, Inc. | Dual inflator apparatus including pyrotechnic inflator |
| EP0978424A3 (en) * | 1998-08-04 | 2001-12-05 | TRW Airbag Systems GmbH & Co. KG | Gas generator with controlable liquid injection |
| US6412814B1 (en) | 1998-08-04 | 2002-07-02 | Trw Airbag Systems Gmbh & Co. Kg | Gas generator with controllable fluid injection |
| WO2010043507A1 (en) * | 2008-10-17 | 2010-04-22 | Takata-Petri Ag | Gas generator assembly for a motor vehicle |
| US8083258B2 (en) | 2008-10-17 | 2011-12-27 | Takata-Petri Ag | Gas generator assembly for a motor vehicle |
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