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    • 3. 发明公开
    • ASPIRATION-TYPE AIR BAG INFLATION APPARATUS
    • 气囊充气吸入式
    • EP0988186A4
    • 2001-04-25
    • EP98923433
    • 1998-05-19
    • ATLANTIC RES CORP
    • SIDES JAMES RFISHER PHILIP DSCHEFFEE ROBERT S
    • B60R21/20B60R21/217B60R21/30
    • B60R21/30B60R2021/2173
    • Apparatus for inflating an air bag (16) and for reducing the inflation rate of the bag (16) in the event hat an occupant of a vehicle engages the bag (16) before it is fully inflated, comprising a gas generating unit (14) for producing an inflation gas in response to a predetermined impact to the vehicle, and an aspiration unit (12) connected to the gas generating unit (14) and to the bag (16). The aspiration unit (12) comprises an ambient air inlet (22), a mixing chamber (28) in communication with the air inlet (22), and nozzles (32) in communication with the gas generating unit (14) and the mixing chamber (28) for directing inflation gas into the mixing chamber (28) to aspirate ambient air through the air inlet (22) into the mixing chamber (28) so that a mixture of ambient air and generated inflation gas is created for the inflation of the bag (16). Upon engagement of the bag (16) by the occupant before it is fully inflated, a back pressure is created in the mixing chamber (28) to reduce or terminate the flow of aspirated air into the mixing chamber (28) and thus to reduce the inflation rate of the bag (16), thereby preventing continued rapid inflation of the bag (16) and possible serious injury to the occupant.
    • 8. 发明公开
    • DUAL LEVEL INFLATOR
    • 两段式煤气发生器
    • EP1133417A4
    • 2004-12-15
    • EP99968456
    • 1999-11-30
    • ATLANTIC RES CORP
    • GREIST DARTON E IIIDIGANGI SCOTT JOSEPHROBBINS RICHARD K
    • B60R21/263B60R21/272B60R21/26B60R21/28
    • B60R21/272B60R2021/2633
    • A dual level inflator (10) is provided for creating at least two different rates and levels of air bag inflation while optimizing cost effectiveness, size, safety, and performance. The dual level inflator includes a unitized gas generator canister assembly (16) including two canisters of gas generant material connected to a common base and positioned in a chamber (14) formed in an inflator outer housing (12). The unitized assembly is easily transportable and mountable on the outer housing. Each canister of the unitized assembly includes apertures permitting direct communication between each canister cavity and the chamber of the outer housing. As a result, generant material positioned in each canister is directly exposed to the conditions in the outer housing chamber. The present assembly is advantageous in that it maximizes the internal volume available to the stored gas and, after the ignition of one canister and the inflation of the air bag, the remaining canister may be ignited without reinflating the air bag due to the previous depressurization of the chamber in combination with the selection of a generant material incapable of effectively burning in a low pressure environment, i.e. the directly connected chamber. The present dual inflator also includes seal means to prevent inadvertent ignition, and an arrangement by which the plurality of apertures formed in one canister are positioned relative to the apertures in the other canister to cause the gas flowing from one set of apertures to be sufficiently cooled by the inert gas in the chamber prior to reaching the apertures of the other canister thereby preventing inadvertent thermally induced ignition of the generant material in the remaining unfired canister.