EP0722429A1 - Gasgeneratortreibstoff - Google Patents
GasgeneratortreibstoffInfo
- Publication number
- EP0722429A1 EP0722429A1 EP94928758A EP94928758A EP0722429A1 EP 0722429 A1 EP0722429 A1 EP 0722429A1 EP 94928758 A EP94928758 A EP 94928758A EP 94928758 A EP94928758 A EP 94928758A EP 0722429 A1 EP0722429 A1 EP 0722429A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas generator
- component
- generator fuel
- fuel according
- nitrate
- 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 claims abstract description 50
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 15
- KPTSBKIDIWXFLF-UHFFFAOYSA-N 1,1,2-triaminoguanidine Chemical compound NN=C(N)N(N)N KPTSBKIDIWXFLF-UHFFFAOYSA-N 0.000 claims abstract description 14
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 11
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 claims abstract description 8
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 8
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 6
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 6
- 239000007800 oxidant agent Substances 0.000 claims abstract description 5
- FQQQSNAVVZSYMB-UHFFFAOYSA-N 1,1-diaminoguanidine Chemical compound NN(N)C(N)=N FQQQSNAVVZSYMB-UHFFFAOYSA-N 0.000 claims abstract description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims abstract description 4
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 claims abstract description 4
- HAMNKKUPIHEESI-UHFFFAOYSA-N aminoguanidine Chemical compound NNC(N)=N HAMNKKUPIHEESI-UHFFFAOYSA-N 0.000 claims abstract description 4
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical class [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims abstract description 4
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 claims abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 claims abstract description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 claims abstract 2
- 239000000446 fuel Substances 0.000 claims description 30
- 239000002893 slag Substances 0.000 claims description 11
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 10
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 6
- 239000003380 propellant Substances 0.000 claims description 6
- IDCPFAYURAQKDZ-UHFFFAOYSA-N 1-nitroguanidine Chemical compound NC(=N)N[N+]([O-])=O IDCPFAYURAQKDZ-UHFFFAOYSA-N 0.000 claims description 5
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- UAGLZAPCOXRKPH-UHFFFAOYSA-N nitric acid;1,2,3-triaminoguanidine Chemical compound O[N+]([O-])=O.NNC(NN)=NN UAGLZAPCOXRKPH-UHFFFAOYSA-N 0.000 claims description 4
- 235000010333 potassium nitrate Nutrition 0.000 claims description 4
- 239000004323 potassium nitrate Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000000178 monomer Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims 1
- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 17
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 5
- 229960004643 cupric oxide Drugs 0.000 abstract 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 27
- 238000012360 testing method Methods 0.000 description 17
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002341 toxic gas Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 229920003086 cellulose ether Polymers 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum silicates Chemical class 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910002016 Aerosil® 200 Inorganic materials 0.000 description 1
- 229910002018 Aerosil® 300 Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910001963 alkali metal nitrate Inorganic materials 0.000 description 1
- 229910001964 alkaline earth metal nitrate Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 239000003975 dentin desensitizing agent Substances 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 239000011118 polyvinyl acetate Substances 0.000 description 1
- 229920002689 polyvinyl acetate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000002411 thermogravimetry Methods 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B25/00—Compositions containing a nitrated organic compound
- C06B25/34—Compositions containing a nitrated organic compound the compound being a nitrated acyclic, alicyclic or heterocyclic amine
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B43/00—Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
- C06D5/00—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets
- C06D5/06—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets by reaction of two or more solids
Definitions
- the invention relates to solid gas generator fuels based on guanidine compounds on suitable carriers.
- JP H5-254977 discloses gas generator fuels for airbags based on triaminoguanidine nitrate (TAGN), which can additionally contain oxidizing agents such as alkali and alkaline earth nitrates, nitrites, chlorates or perchlorates.
- TAGN triaminoguanidine nitrate
- Molybdenum sulfide can be contained as a further component as a binder.
- connection with heavy metals does not form friction and impact sensitive salts.
- the rate of combustion of the gas generator fuels should be possible by varying the compression pressure during the production of pellets or tablets from the component mixture.
- the present invention is based on the object of providing improved gas generator fuels whose combustion behavior can be set in a targeted manner and which form a readily retained slag during combustion and the formation of toxic gases Limit the minimum.
- the gas generator fuels should be thermally stable, easy to ignite, fast - even at low temperature - burning and well storable and guarantee a high gas yield.
- these gas generator fuels should make it possible to downsize the generator housing and thus reduce its weight compared to known generators operated with sodium azide.
- a gas generator fuel comprising (A) at least one carbonate, hydrogen carbonate or nitrate of guanidine,
- Aminoguanidine, diaminoguanidine or triaminoguanidine is Aminoguanidine, diaminoguanidine or triaminoguanidine,
- (C) at least one carrier substance selected from silicon dioxide, alkali metal, alkaline earth metal or aluminum oxide and / or at least its oxygen-supplying carrier substance selected from iron (III) oxide, cobalt oxides, manganese dioxide and copper (II) oxide , to moderate the burning and to improve the formation of slag.
- carrier substance selected from silicon dioxide, alkali metal, alkaline earth metal or aluminum oxide and / or at least its oxygen-supplying carrier substance selected from iron (III) oxide, cobalt oxides, manganese dioxide and copper (II) oxide , to moderate the burning and to improve the formation of slag.
- component (A) carbonates, hydrogen carbonates or nitrates of
- Guanidine, aminoguanidine, diaminoguanidine or triaminoguanidine (TAGN) or mixtures thereof can be used.
- TAGN is preferably used.
- TAGN is practically non-toxic (LD 50 > 3500 mg / kg rat), not hygroscopic, not very water-soluble, thermally stable, burning at low temperature and of low sensitivity to impact and friction.
- the gas yield from the combustion of TAGN is very high, with a large proportion of nitrogen gas being generated.
- 1 to 50% by weight of the TAGN can be replaced by nitroguanidine.
- the cost of component (A) can thus be reduced and favorable combustion behavior can be achieved, since nitroguanidine has a lower combustion rate than TAGN.
- component (B) alkali metal or alkaline earth metal nitrates, ammonium nitrate and mixtures thereof can be used.
- Potassium nitrate is preferably used. Potassium nitrate is non-hygroscopic, non-toxic, enables a high gas yield and low burning temperature when burned.
- Component (A) is in the mixture of (A) and (B) in an amount of about 20 to 55, preferably about 50 to 55% by weight, component (B) in an amount of about 80 to 45, preferably about 50 up to 45% by weight.
- Component (A) is preferably present in an amount of approximately 50 to 55% by weight and component (B) in an amount of approximately 50 to 45% by weight.
- Silicon dioxide, alkali metal, alkaline earth metal or aluminum silicates or mixtures thereof can be used as the carrier substance, component (C).
- Examples include Aerosil 200 and Aerosil 300, highly disperse silica and diatomaceous earth (diatomaceous earth).
- the preferred carrier substance is silica with a pH of about 7.
- Oxygen-providing carrier substances such as
- Iron (III) oxide, cobalt oxide, manganese dioxide and copper (II) oxide or mixtures thereof can be used.
- the preferred oxygen-supplying carrier is iron (III) oxide.
- Component (C) is based on the total amount of components (A) and
- iron (III) oxide is used as the oxygen-supplying carrier substance (C), it is present in an amount of about 20 to 40, preferably about 25 to 35,% by weight, based on the total amount of components (A) and (B).
- Component (C) serves to moderate the burnup, i.e. for setting the burn rate. At the same time, slag or melt formation is improved.
- the slag formation is, for example, at
- An airbag essentially consists of a gas generator housing, which is filled with the gas generator fuel, usually in tablet form, and an initial squib for igniting the gas generator fuel, and a gas bag. Suitable detonators are described, for example, in Us-Ps 49 31 1 1 1.
- the initially small-folded gas bag is filled with the gases generated when the gas generator fuel burns after the initial ignition and reaches its full volume in a period of about 10-50 ms.
- the escape of hot sparks, melts or solids from the gas generator into the gas bag must be largely prevented, since it could lead to the gas bag being destroyed or injuring vehicle occupants. This is achieved through the formation of slag.
- Respirable dust-like particles have a diameter of about 6 ⁇ m or less.
- the oxygen-supplying carrier substances also suppress the formation of toxic gases such as carbon monoid during combustion.
- the gas generator fuel can also be used as component (D)
- binders are cellulose compounds or polymers made from one or more polymerizable olefinically unsaturated monomers.
- cellulose compounds are cellulose ethers, such as carboxymethyl cellulose, methyl cellulose ethers, in particular methyl hydroxyethyl cellulose.
- a well-usable methylhydroxyethyl cellulose is CULMINAL (R) MHEC 30000 PR from Fi rm Aq ualon.
- Adequate poly risits w ith linkage are polyvinylpyrrolidone, polyvinyl acetate, polyvinyl alcohol and polycarbonates.
- Component (D) is based on the total amount of components (A) and
- the binder (D) serves as a desensitizing agent and as a processing aid in the production of granules or tablets from the gas generator fuel. It also serves to reduce the hydrophilicity and to stabilize the binder (D).
- the tablets or pellets from the gas generator fuel used in the gas generators can be produced by known processes, for example by extrusion, extrusion, in rotary presses or
- Tableting machines The size of the pellets or tablets depends on the desired burning time in the respective application.
- triaminoguanidine nitrate TAG N
- Nitroguanidine as well as potassium nitrate and possibly cellulose ether are dissolved in as little water as possible at 90 ° C. and iron oxide and / or silicon dioxide with an average grain size of approx. 1 ⁇ m are stirred into the solution. After predrying at 60 ° C. and 16 hPa with mechanical agitation, the mixture is crushed while still moist and then, after drying at 60 ° C., compressed with a tabletting machine into tablets 6 mm in diameter and 2 mm in height.
- Table II shows an overview of the calculated reaction parameters. A high reaction temperature occurs in mixture 5 and especially in mixture 6.
- Table III shows an overview of the reaction products formed during the combustion and their amounts.
- Tab IM reaction products at 298 K. Freeze-Out-Temp. 1,500 K
- HCN 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 NH 3 0.000 0.000 0.003 0.002 0.000 0.000 KOH 0.086 0.000 0.003 0.003 0.053 0.101 K 2 C0 3 21.014 0.000 0.000 0.000 0.150 31.997
- Table IV shows test results on the sensitivity to decomposition, stability, slag formation and the combustion behavior of the various mixtures. Mixtures 1 to 5 showed good to very good burning behavior, especially with regard to a constant high burning rate. For the
- Comparative mixture 6 which contains neither silicon dioxide nor iron (III) oxide as component (C), could only be found to show inadequate slag formation and inadequate combustion behavior.
- Tab IV Test results mixture 1
- Gas generator housing made of aluminum for a 60 liter airbag, provided with a hole for pressure measurement, carried out in a 60 liter can.
- the test temperature for test 1 was -35 ° C.
- the propellant weight was 51.0 g.
- the propellant consisted of tablets with a diameter of 6 mm and a height of 2 mm.
- FIG. 1 shows the pressure in the combustion chamber in units of 10 5 Pascals as a function of the time after ignition in milliseconds.
- the pressure builds up within approx. 1.5 ms and the pressure drop to half the maximum pressure occurs after approx. 27 ms.
- the maximum pressure is 1.88 * 10 7 Pa, it is reached after 12.3 ms.
- test burns of mixture 2 were carried out in a Euro gas generator housing made of aluminum for a 35 liter airbag, provided with a bore for pressure measurement, in a 60 liter can.
- the test temperature in test 2 was -35 ° C, in test 3 + 20 ° C.
- the propellant weight was 41.0 g in test 2 and 30.0 g in test 3.
- Propellant consisted of tablets with a diameter of 6 mm and a height of 2 mm.
- FIG. 2 shows the pressure in the combustion chamber in units of 10 5 Pascals as a function of the time after ignition in milliseconds.
- the pressure builds up within approx. 1.5 ms and the pressure drop to half the maximum pressure occurs after approx. 27 ms.
- the maximum pressure was 1.45 * 10 7 Pa, it was reached after 15.7 ms.
- FIG. 3 shows the pressure in the combustion chamber in units of 10 5 Pascal as a function of the time after ignition in milliseconds.
- the pressure builds up within approx. 1.5 ms and the pressure drop to half the maximum pressure occurs after approx. 27 ms.
- the maximum pressure was 1.33 * 10 7 Pa, it was reached after 7.5 ms.
- the gas generator fuel according to the invention consists of non-toxic, easily manufactured and inexpensive components, the processing of which is unproblematic. Their thermal stability ensures good shelf life. Despite the low combustion temperature, the ignitability of the mixtures is good. They burn quickly and deliver large gas yields with very low CO and NO proportions.
- the mixtures according to the invention are therefore for use as
- Gas generating agent in the various airbag systems particularly suitable as an extinguishing agent or propellant.
- the gas generator fuels are easily recyclable.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Air Bags (AREA)
- Percussion Or Vibration Massage (AREA)
- Sampling And Sample Adjustment (AREA)
- Gas Separation By Absorption (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
- Medicinal Preparation (AREA)
- Fats And Perfumes (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4334099 | 1993-10-06 | ||
DE4334099 | 1993-10-06 | ||
PCT/DE1994/001184 WO1995009825A1 (de) | 1993-10-06 | 1994-10-06 | Gasgeneratortreibstoff |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0722429A1 true EP0722429A1 (de) | 1996-07-24 |
EP0722429B1 EP0722429B1 (de) | 1999-03-31 |
Family
ID=6499558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94928758A Expired - Lifetime EP0722429B1 (de) | 1993-10-06 | 1994-10-06 | Gasgeneratortreibstoff |
Country Status (15)
Country | Link |
---|---|
EP (1) | EP0722429B1 (de) |
JP (1) | JPH09503195A (de) |
CN (1) | CN1132501A (de) |
AT (1) | ATE178304T1 (de) |
AU (1) | AU687895B2 (de) |
BR (1) | BR9407761A (de) |
CA (1) | CA2172822A1 (de) |
CZ (1) | CZ88796A3 (de) |
DE (2) | DE59408048D1 (de) |
ES (1) | ES2130448T3 (de) |
HU (1) | HUT76867A (de) |
PL (1) | PL175606B1 (de) |
RU (1) | RU2117649C1 (de) |
SK (1) | SK45596A3 (de) |
WO (1) | WO1995009825A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6497774B2 (en) | 1996-07-22 | 2002-12-24 | Daicel Chemical Industries, Ltd. | Gas generant for air bag |
KR100456410B1 (ko) * | 1996-07-22 | 2005-04-14 | 다이셀 가가꾸 고교 가부시끼가이샤 | 에어백용가스발생제 |
Families Citing this family (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050067074A1 (en) | 1994-01-19 | 2005-03-31 | Hinshaw Jerald C. | Metal complexes for use as gas generants |
US5538567A (en) * | 1994-03-18 | 1996-07-23 | Olin Corporation | Gas generating propellant |
WO1996023748A1 (fr) * | 1995-02-03 | 1996-08-08 | Otsuka Kagaku Kabushiki Kaisha | Agent generateur de gaz pour air-bag |
GB9503066D0 (en) * | 1995-02-16 | 1995-04-05 | Royal Ordnance Plc | Gas generating composition |
US5641938A (en) * | 1995-03-03 | 1997-06-24 | Primex Technologies, Inc. | Thermally stable gas generating composition |
JP3795525B2 (ja) * | 1995-03-31 | 2006-07-12 | アトランティック リサーチ コーポレイション | 粒子を含んでいない無毒で無臭無色のガスを発生させるための全火工方法 |
US5726382A (en) * | 1995-03-31 | 1998-03-10 | Atlantic Research Corporation | Eutectic mixtures of ammonium nitrate and amino guanidine nitrate |
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- 1994-10-06 CZ CZ96887A patent/CZ88796A3/cs unknown
- 1994-10-06 SK SK455-96A patent/SK45596A3/sk unknown
- 1994-10-06 CN CN94193677A patent/CN1132501A/zh active Pending
- 1994-10-06 BR BR9407761A patent/BR9407761A/pt not_active Application Discontinuation
- 1994-10-06 JP JP7510558A patent/JPH09503195A/ja active Pending
- 1994-10-06 DE DE59408048T patent/DE59408048D1/de not_active Expired - Fee Related
- 1994-10-06 AU AU78066/94A patent/AU687895B2/en not_active Ceased
- 1994-10-06 ES ES94928758T patent/ES2130448T3/es not_active Expired - Lifetime
- 1994-10-06 EP EP94928758A patent/EP0722429B1/de not_active Expired - Lifetime
- 1994-10-06 DE DE9416112U patent/DE9416112U1/de not_active Expired - Lifetime
- 1994-10-06 PL PL94313943A patent/PL175606B1/pl unknown
- 1994-10-06 AT AT94928758T patent/ATE178304T1/de not_active IP Right Cessation
- 1994-10-06 CA CA002172822A patent/CA2172822A1/en not_active Abandoned
- 1994-10-06 HU HU9600744A patent/HUT76867A/hu unknown
- 1994-10-06 RU RU96109379A patent/RU2117649C1/ru active
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US6497774B2 (en) | 1996-07-22 | 2002-12-24 | Daicel Chemical Industries, Ltd. | Gas generant for air bag |
KR100456410B1 (ko) * | 1996-07-22 | 2005-04-14 | 다이셀 가가꾸 고교 가부시끼가이샤 | 에어백용가스발생제 |
Also Published As
Publication number | Publication date |
---|---|
DE9416112U1 (de) | 1994-12-15 |
WO1995009825A1 (de) | 1995-04-13 |
EP0722429B1 (de) | 1999-03-31 |
DE59408048D1 (de) | 1999-05-06 |
PL175606B1 (pl) | 1999-01-29 |
SK45596A3 (en) | 1997-01-08 |
ATE178304T1 (de) | 1999-04-15 |
AU7806694A (en) | 1995-05-01 |
BR9407761A (pt) | 1997-03-04 |
HU9600744D0 (en) | 1996-05-28 |
RU2117649C1 (ru) | 1998-08-20 |
CN1132501A (zh) | 1996-10-02 |
HUT76867A (en) | 1997-12-29 |
CZ88796A3 (en) | 1996-08-14 |
AU687895B2 (en) | 1998-03-05 |
JPH09503195A (ja) | 1997-03-31 |
ES2130448T3 (es) | 1999-07-01 |
CA2172822A1 (en) | 1995-04-13 |
PL313943A1 (en) | 1996-08-05 |
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