WO2004024653A3 - Multi-stage gas generator and gas generants - Google Patents

Multi-stage gas generator and gas generants Download PDF

Info

Publication number
WO2004024653A3
WO2004024653A3 PCT/US2003/028373 US0328373W WO2004024653A3 WO 2004024653 A3 WO2004024653 A3 WO 2004024653A3 US 0328373 W US0328373 W US 0328373W WO 2004024653 A3 WO2004024653 A3 WO 2004024653A3
Authority
WO
WIPO (PCT)
Prior art keywords
compartment
gas generator
airbag
gas
propellant
Prior art date
Application number
PCT/US2003/028373
Other languages
French (fr)
Other versions
WO2004024653A2 (en
Inventor
Sami Daoud
Original Assignee
Textron Systems Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US10/242,494 external-priority patent/US6877435B2/en
Priority claimed from US10/242,742 external-priority patent/US6918340B2/en
Application filed by Textron Systems Corp filed Critical Textron Systems Corp
Priority to AU2003270501A priority Critical patent/AU2003270501A1/en
Priority to EP03752198A priority patent/EP1539657A2/en
Priority to JP2004536442A priority patent/JP2005538834A/en
Publication of WO2004024653A2 publication Critical patent/WO2004024653A2/en
Publication of WO2004024653A3 publication Critical patent/WO2004024653A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
    • B60R21/2171—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together specially adapted for elongated cylindrical or bottle-like inflators with a symmetry axis perpendicular to the main direction of bag deployment, e.g. extruded reaction canisters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/263—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using a variable source, e.g. plural stage or controlled output
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
    • F42B10/48—Range-reducing, destabilising or braking arrangements, e.g. impact-braking arrangements; Fall-retarding means, e.g. balloons, rockets for braking or fall-retarding
    • F42B10/56—Range-reducing, destabilising or braking arrangements, e.g. impact-braking arrangements; Fall-retarding means, e.g. balloons, rockets for braking or fall-retarding of parachute or paraglider type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/60—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected radially
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • B60R2021/2648—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder comprising a plurality of combustion chambers or sub-chambers

Abstract

A gas generator is described that may have two or more compartments, each with a separate initiator. One compartment may discharge before another. Each compartment may have the same propellant. The propellants may have different geometries in each compartment, producing different rates of gas evolution from each compartment. The gas generator may produce a rapid initial inflation, followed by a more gradual inflation rate in subsequent stages. One propellant used may include ammonium nitrate as an oxidizer, a fuel such as CL-20, and a binder such as polycaprolactone. A second propellant may include approximately 70-95% energetic nitramine fuel, 5-25% energetic polymer binder, and 0.1-5% flash suppressant, respectively, by weight. An inflation rate of an airbag may be controlled by connecting a gas generator to the airbag, causing each of the chambers to discharge at a different, predetermined time, and causing the effluent of each chamber to flow into the airbag.
PCT/US2003/028373 2002-09-12 2003-09-10 Multi-stage gas generator and gas generants WO2004024653A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2003270501A AU2003270501A1 (en) 2002-09-12 2003-09-10 Multi-stage gas generator and gas generants
EP03752198A EP1539657A2 (en) 2002-09-12 2003-09-10 Multi-stage gas generator and gas generants
JP2004536442A JP2005538834A (en) 2002-09-12 2003-09-10 Multistage gas generator and gas generator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/242,494 2002-09-12
US10/242,494 US6877435B2 (en) 2002-09-12 2002-09-12 Dual-stage gas generator utilizing eco-friendly gas generant formulation
US10/242,742 US6918340B2 (en) 2002-09-12 2002-09-12 Dual-stage gas generator utilizing eco-friendly gas generant formulation for military applications
US10/242,742 2002-09-12

Publications (2)

Publication Number Publication Date
WO2004024653A2 WO2004024653A2 (en) 2004-03-25
WO2004024653A3 true WO2004024653A3 (en) 2004-09-23

Family

ID=31996736

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/028373 WO2004024653A2 (en) 2002-09-12 2003-09-10 Multi-stage gas generator and gas generants

Country Status (5)

Country Link
EP (1) EP1539657A2 (en)
JP (1) JP2005538834A (en)
KR (1) KR20050061472A (en)
AU (1) AU2003270501A1 (en)
WO (1) WO2004024653A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4575036B2 (en) * 2004-06-07 2010-11-04 ダイセル化学工業株式会社 Gas generant composition
DE102004061658A1 (en) * 2004-12-22 2006-07-13 Diehl Bgt Defence Gmbh & Co. Kg Ejecting acceleration sensitive ammunition from a projectile, comprises accelerating the ammunition during primary and secondary phases
CN100339339C (en) * 2005-03-31 2007-09-26 张根发 Moulding product of gas producing medicinal preparation and its preparation method
FR2887247B1 (en) * 2005-06-15 2007-10-12 Snpe Materiaux Energetiques PROCESS FOR MANUFACTURING GAS GENERATOR PELLETS COMPRISING A DRY GRANULATION STEP
FR2899227B1 (en) * 2006-04-04 2008-10-24 Snpe Materiaux Energetiques Sa LARGE-SIZE MONOLITH PYROTECHNIC OBJECTS, OBTAINING AND USING
US7758709B2 (en) 2006-06-21 2010-07-20 Autoliv Asp, Inc. Monolithic gas generant grains
WO2008043946A2 (en) 2006-10-09 2008-04-17 Snpe Materiaux Energetiques Pyrotechnical method for dual-mode gas generation and related pyrotechnical generator
US9193639B2 (en) 2007-03-27 2015-11-24 Autoliv Asp, Inc. Methods of manufacturing monolithic generant grains
JP2009137819A (en) * 2007-12-11 2009-06-25 Daicel Chem Ind Ltd Gas generating agent composition
JP2009190911A (en) * 2008-02-13 2009-08-27 Daicel Chem Ind Ltd Gas generator composition
US8815029B2 (en) * 2008-04-10 2014-08-26 Autoliv Asp, Inc. High performance gas generating compositions
KR101101218B1 (en) * 2008-09-26 2012-01-04 국방과학연구소 Gap/nitramine-based energetic propellant composition having excellent mechanical properties
EP3072868B1 (en) * 2010-06-15 2017-12-13 Aerojet Rocketdyne, Inc. End-burning propellant grain with area-enhanced burning surface
US9051223B2 (en) 2013-03-15 2015-06-09 Autoliv Asp, Inc. Generant grain assembly formed of multiple symmetric pieces
FR3005724A1 (en) * 2013-05-17 2014-11-21 Herakles PYROTECHNIC GAS GENERATOR
DE102016113732A1 (en) * 2016-07-26 2018-02-01 Trw Airbag Systems Gmbh Gas generator with pyrotechnic propellant charge and method for producing the propellant
CN109970500A (en) * 2019-05-08 2019-07-05 山西壶化集团金星化工有限公司 It is a kind of without terraced sticky ANFO explosives prill

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1372175A (en) * 1963-10-08 1964-09-11 Method and device for obtaining a variable initial speed with a muzzle
GB2175982A (en) * 1985-05-10 1986-12-10 Messerschmitt Boelkow Blohm Ignition apparatus
US5292387A (en) * 1993-01-28 1994-03-08 Thiokol Corporation Phase-stabilized ammonium nitrate and method of making same
EP0591119A2 (en) * 1992-10-02 1994-04-06 Bofors Explosives AB Propellant for airbags
EP0816307A1 (en) * 1996-06-28 1998-01-07 Societe Nationale Des Poudres Et Explosifs Clean-gas generating pyrotechnic compositions and use thereof in a gas generator employed in a protection system in motor vehicles
WO1998021168A1 (en) * 1996-11-13 1998-05-22 Thelma Manning High energy thermoplastic elastomer propellant
US6149193A (en) * 1999-08-06 2000-11-21 Breed Automotive Technology, Inc. Variable output inflator
US6189927B1 (en) * 1999-12-16 2001-02-20 Autoliv Asp, Inc. Adaptive output inflator
WO2001087767A2 (en) * 2000-05-18 2001-11-22 Stefaan De Schrijver Micro-electrocmechamical sensor (mems) resonator
US6395112B1 (en) * 2000-02-04 2002-05-28 The United States Of America As Represented By The Secretary Of The Navy Hydrolyzable polymers for explosive and propellant binders
GB2371297A (en) * 1989-04-18 2002-07-24 Royal Ordnance Plc Propellant compositions and propellants produced therefrom
EP1234732A1 (en) * 1999-11-29 2002-08-28 Daicel Chemical Industries, Ltd. Gas generator for air bag and air bag device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3691103B2 (en) * 1995-03-20 2005-08-31 富士重工業株式会社 Parent-child ammunition
JP2877796B1 (en) * 1998-03-18 1999-03-31 旭化成工業株式会社 Gas generator
JP2001151070A (en) * 1999-11-29 2001-06-05 Daicel Chem Ind Ltd Gas generator for air bag, and air bag device

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1372175A (en) * 1963-10-08 1964-09-11 Method and device for obtaining a variable initial speed with a muzzle
GB2175982A (en) * 1985-05-10 1986-12-10 Messerschmitt Boelkow Blohm Ignition apparatus
GB2371297A (en) * 1989-04-18 2002-07-24 Royal Ordnance Plc Propellant compositions and propellants produced therefrom
EP0591119A2 (en) * 1992-10-02 1994-04-06 Bofors Explosives AB Propellant for airbags
US5292387A (en) * 1993-01-28 1994-03-08 Thiokol Corporation Phase-stabilized ammonium nitrate and method of making same
EP0816307A1 (en) * 1996-06-28 1998-01-07 Societe Nationale Des Poudres Et Explosifs Clean-gas generating pyrotechnic compositions and use thereof in a gas generator employed in a protection system in motor vehicles
WO1998021168A1 (en) * 1996-11-13 1998-05-22 Thelma Manning High energy thermoplastic elastomer propellant
US6149193A (en) * 1999-08-06 2000-11-21 Breed Automotive Technology, Inc. Variable output inflator
EP1234732A1 (en) * 1999-11-29 2002-08-28 Daicel Chemical Industries, Ltd. Gas generator for air bag and air bag device
US6189927B1 (en) * 1999-12-16 2001-02-20 Autoliv Asp, Inc. Adaptive output inflator
US6395112B1 (en) * 2000-02-04 2002-05-28 The United States Of America As Represented By The Secretary Of The Navy Hydrolyzable polymers for explosive and propellant binders
WO2001087767A2 (en) * 2000-05-18 2001-11-22 Stefaan De Schrijver Micro-electrocmechamical sensor (mems) resonator

Also Published As

Publication number Publication date
EP1539657A2 (en) 2005-06-15
JP2005538834A (en) 2005-12-22
AU2003270501A8 (en) 2004-04-30
KR20050061472A (en) 2005-06-22
AU2003270501A1 (en) 2004-04-30
WO2004024653A2 (en) 2004-03-25

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