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WO2025186358A8 - Générateur de gaz - Google Patents

Générateur de gaz

Info

Publication number
WO2025186358A8
WO2025186358A8 PCT/EP2025/056069 EP2025056069W WO2025186358A8 WO 2025186358 A8 WO2025186358 A8 WO 2025186358A8 EP 2025056069 W EP2025056069 W EP 2025056069W WO 2025186358 A8 WO2025186358 A8 WO 2025186358A8
Authority
WO
WIPO (PCT)
Prior art keywords
gas
gas generator
chamber
defining
passage area
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
Application number
PCT/EP2025/056069
Other languages
English (en)
Other versions
WO2025186358A1 (fr
Inventor
Gerald Prima
Mikael Hansson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autoliv Development AB
Original Assignee
Autoliv Development AB
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
Application filed by Autoliv Development AB filed Critical Autoliv Development AB
Publication of WO2025186358A1 publication Critical patent/WO2025186358A1/fr
Publication of WO2025186358A8 publication Critical patent/WO2025186358A8/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B60R21/26—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
    • 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
    • B60R21/274—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 characterised by means to rupture or open the fluid source
    • 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
    • B60R2021/26094—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 characterised by fluid flow controlling valves

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Générateur de gaz comprenant au moins: - une chambre de gaz (10, 40), - du gaz de gonflage (G1, G2), stocké sous pression dans la chambre de gaz (10, 40), - un dispositif d'ouverture pyrotechnique (20), - une chambre de diffusion (50), agencée pour recevoir le gaz de gonflage (G1, G2) ouverte par le dispositif d'ouverture pyrotechnique (20) et comprenant des trous de diffusion (52), - un dispositif de ventilation, avec un obturateur interne (35) agencé dans la chambre de diffusion (50) et mobile entre : • une première position, définissant une première surface de passage, et • une deuxième position, définissant une deuxième surface de passage, caractérisé en ce que le générateur de gaz comprend un dispositif anti-retour agencé pour retenir l'obturateur interne (35) dans la deuxième position.
PCT/EP2025/056069 2024-03-08 2025-03-06 Générateur de gaz Pending WO2025186358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2402368A FR3159945A1 (fr) 2024-03-08 2024-03-08 Générateur de gaz
FRFR2402368 2024-03-08

Publications (2)

Publication Number Publication Date
WO2025186358A1 WO2025186358A1 (fr) 2025-09-12
WO2025186358A8 true WO2025186358A8 (fr) 2025-10-02

Family

ID=90811152

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2025/056069 Pending WO2025186358A1 (fr) 2024-03-08 2025-03-06 Générateur de gaz

Country Status (2)

Country Link
FR (1) FR3159945A1 (fr)
WO (1) WO2025186358A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5984351A (en) * 1997-04-11 1999-11-16 Autoliv Asp, Inc. Dual stage actuation system
FR2998845B1 (fr) 2012-12-04 2016-04-01 Autoliv Dev Generateur de gaz
FR3134775A1 (fr) * 2022-04-20 2023-10-27 Autoliv Development Ab Générateur de gaz avec une réserve de gaz sous pression

Also Published As

Publication number Publication date
FR3159945A1 (fr) 2025-09-12
WO2025186358A1 (fr) 2025-09-12

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