WO2003080392A3 - Dual flow inflator for a vehicular airbag system - Google Patents

Dual flow inflator for a vehicular airbag system Download PDF

Info

Publication number
WO2003080392A3
WO2003080392A3 PCT/US2003/008004 US0308004W WO03080392A3 WO 2003080392 A3 WO2003080392 A3 WO 2003080392A3 US 0308004 W US0308004 W US 0308004W WO 03080392 A3 WO03080392 A3 WO 03080392A3
Authority
WO
WIPO (PCT)
Prior art keywords
dual flow
exit orifices
airbag system
exit
vehicular airbag
Prior art date
Application number
PCT/US2003/008004
Other languages
French (fr)
Other versions
WO2003080392A2 (en
Inventor
Karl Rink
David Green
Anthony Young
Paul Dinsdale
Tom Wilson
Original Assignee
Autoliv Asp Inc
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 US10/100,820 external-priority patent/US6746046B2/en
Priority claimed from US10/100,928 external-priority patent/US6820898B2/en
Priority claimed from US10/115,857 external-priority patent/US6854763B2/en
Application filed by Autoliv Asp Inc filed Critical Autoliv Asp Inc
Priority to DE10392384T priority Critical patent/DE10392384T5/en
Priority to AU2003218185A priority patent/AU2003218185A1/en
Priority to JP2003578180A priority patent/JP2005520734A/en
Publication of WO2003080392A2 publication Critical patent/WO2003080392A2/en
Publication of WO2003080392A3 publication Critical patent/WO2003080392A3/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
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
    • 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
    • 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
    • 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
    • B60R21/268—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 release of stored pressurised gas
    • B60R21/272—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 release of stored pressurised gas with means for increasing the pressure of the gas just before or during liberation, e.g. hybrid inflators
    • 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
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R2021/23107—Inflatable members characterised by their shape, construction or spatial configuration the bag being integrated in a multi-bag system
    • 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
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B60R2021/23386—External tether means
    • 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
    • B60R21/261—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 with means other than bag structure to diffuse or guide inflation fluid
    • B60R2021/2612—Gas guiding means, e.g. ducts
    • 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
    • B60R21/261—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 with means other than bag structure to diffuse or guide inflation fluid
    • B60R2021/2612—Gas guiding means, e.g. ducts
    • B60R2021/2615—Gas guiding means, e.g. ducts for diverting the gas into a plurality of bags
    • 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
    • B60R2021/2633—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 with a plurality of inflation levels
    • 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
    • B60R21/268—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 release of stored pressurised gas
    • B60R2021/2685—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 release of stored pressurised gas comprising a plurality of pressure chambers
    • 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
    • B60R21/213—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle roof frames or pillars

Abstract

A dual flow inflator (24) for airbags having a gas chamber (54) with a first (70) orifice and a second end with a second exit orifice (72) at a second end. The exit orifices (70, 72) are directed into inlet ports (60, 62) of an inflatable curtain. The exit orifices (70, 72) provide axial gas flows in opposite directions. The exit orifices may comprise frangible structures such as burst discs (78), scored surfaces, and compression closures. Pistons may be utilized to ensure that the exit orifices are completely and simultaneously opened.
PCT/US2003/008004 2002-03-19 2003-03-18 Dual flow inflator for a vehicular airbag system WO2003080392A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10392384T DE10392384T5 (en) 2002-03-19 2003-03-18 Double-flow gas generator for a vehicle airbag system
AU2003218185A AU2003218185A1 (en) 2002-03-19 2003-03-18 Dual flow inflator for a vehicular airbag system
JP2003578180A JP2005520734A (en) 2002-03-19 2003-03-18 Dual-flow inflator for vehicle airbag systems

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US10/100,820 US6746046B2 (en) 2002-03-19 2002-03-19 Dual flow inflator for a vehicular airbag system
US10/100,928 2002-03-19
US10/100,820 2002-03-19
US10/100,928 US6820898B2 (en) 2002-03-19 2002-03-19 Biaxial dual stage inflator with extended gas delivery for a vehicular airbag system
US10/115,857 2002-06-06
US10/115,857 US6854763B2 (en) 2002-06-06 2002-06-06 Biaxial flow inflator with independently adjusted gas orifices

Publications (2)

Publication Number Publication Date
WO2003080392A2 WO2003080392A2 (en) 2003-10-02
WO2003080392A3 true WO2003080392A3 (en) 2004-03-25

Family

ID=28046250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/008004 WO2003080392A2 (en) 2002-03-19 2003-03-18 Dual flow inflator for a vehicular airbag system

Country Status (4)

Country Link
JP (1) JP2005520734A (en)
AU (1) AU2003218185A1 (en)
DE (1) DE10392384T5 (en)
WO (1) WO2003080392A2 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7004500B2 (en) 2002-03-19 2006-02-28 Paul Dinsdale Dual stage inflator with extended gas delivery for a vehicular airbag system
JP2005053440A (en) * 2003-08-07 2005-03-03 Daicel Chem Ind Ltd Inflater
JP4734933B2 (en) * 2004-02-27 2011-07-27 タカタ株式会社 Vehicle occupant protection system and inflator
US7669894B2 (en) * 2004-12-11 2010-03-02 Autoliv Development Ab Airbag arrangement having thrust-neutral outlet cross-sections of the gas generator
DE102005027504A1 (en) * 2005-06-15 2006-12-28 Acts Advanced Car Technology Systems Gmbh & Co.Kg Occupant restraint system for e.g. motor vehicle has at least one second airbag or group of second airbags having inner space which can be filled with fluid medium and is spatially separated from first airbag
GB2428408B (en) * 2005-07-20 2007-06-20 Nissan Technical Ct Europ Ltd Vehicle airbag system
EP1951572B1 (en) * 2005-11-09 2013-07-03 Bell Helicopter Textron Inc. Crash attenuation system for aircraft
CN101489838B (en) * 2006-07-17 2011-07-06 德尔菲技术公司 Side curtain airbag with extended shoulder portion
DE102007002374B4 (en) * 2007-01-16 2013-07-25 Trw Airbag Systems Gmbh A gas generator for a vehicle occupant restraint system, and a method for activating a vehicle occupant restraint system
US9260192B2 (en) 2009-07-27 2016-02-16 Textron Innovations Inc. Active vent and re-inflation system for a crash attentuation airbag
GB2475474B (en) * 2009-11-06 2014-10-08 Autoliv Dev A safety arrangement
DE102009052565A1 (en) * 2009-11-10 2011-05-12 GM Global Technology Operations LLC, Detroit Airbag module for a vehicle
FR2970690B1 (en) * 2011-01-25 2013-02-08 Livbag GAS GENERATOR HAVING STORAGE ENCLOSURE OF ENDOTHERMIC STATE MATERIAL.
FR2998845B1 (en) * 2012-12-04 2016-04-01 Autoliv Dev GAS GENERATOR
DE102018131323A1 (en) 2018-12-07 2020-06-10 Trw Airbag Systems Gmbh Gas generator, gas bag module, vehicle safety system and method for operating a gas generator

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5273309A (en) * 1992-06-19 1993-12-28 General Motors Corporation Air bag for side impact
US6056319A (en) * 1997-09-24 2000-05-02 Trw Airbag Systems Gmbh & Co. Kg Gas generator for a safety device
US6073961A (en) * 1998-02-20 2000-06-13 Breed Automotive Technology, Inc. Inflatable side airbag curtain module
US6095561A (en) * 1997-03-07 2000-08-01 Automotive Systems Laboratory, Inc. Multi-chamber inflator
US6206412B1 (en) * 1999-12-06 2001-03-27 Trw Inc. Inflator assembly for a vehicle occupant protection device
US6293581B1 (en) * 1999-04-15 2001-09-25 Honda Giken Kogyo Kabushiki Kaisha Occupant restraint device
US20010038199A1 (en) * 1999-12-10 2001-11-08 Trw Occupant Restraint Systems Gmbh & Co. Kg Vehicle occupant restraint system
US20010048218A1 (en) * 2000-04-14 2001-12-06 David Whang Airbag device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5273309A (en) * 1992-06-19 1993-12-28 General Motors Corporation Air bag for side impact
US6095561A (en) * 1997-03-07 2000-08-01 Automotive Systems Laboratory, Inc. Multi-chamber inflator
US6056319A (en) * 1997-09-24 2000-05-02 Trw Airbag Systems Gmbh & Co. Kg Gas generator for a safety device
US6073961A (en) * 1998-02-20 2000-06-13 Breed Automotive Technology, Inc. Inflatable side airbag curtain module
US6293581B1 (en) * 1999-04-15 2001-09-25 Honda Giken Kogyo Kabushiki Kaisha Occupant restraint device
US6206412B1 (en) * 1999-12-06 2001-03-27 Trw Inc. Inflator assembly for a vehicle occupant protection device
US20010038199A1 (en) * 1999-12-10 2001-11-08 Trw Occupant Restraint Systems Gmbh & Co. Kg Vehicle occupant restraint system
US20010048218A1 (en) * 2000-04-14 2001-12-06 David Whang Airbag device

Also Published As

Publication number Publication date
AU2003218185A1 (en) 2003-10-08
JP2005520734A (en) 2005-07-14
DE10392384T5 (en) 2005-04-21
WO2003080392A2 (en) 2003-10-02
AU2003218185A8 (en) 2003-10-08

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