Airbag inflator with components protected from high-temperature,
reactive generated gases
    1.
    发明授权
    Airbag inflator with components protected from high-temperature, reactive generated gases 失效
    安全气囊充气机具有防止高温,反应产生的气体的组件

    公开(公告)号:US5779267A

    公开(公告)日:1998-07-14

    申请号:US716931

    申请日:1996-10-15

    IPC分类号: B60R21/26 B60R21/264 C06D5/06

    CPC分类号: B60R21/2644 C06D5/06

    摘要: Components of a vehicle airbag gas generator, or inflator, are coated with reactivity resistant materials to protect them from deterioration caused by contact with the high temperature, reactive gases generated by recently developed non-azide high reactive temperature gas generating materials. Suitable coatings include those produced from ceramics and reactivity resistant metals. These coatings also provide long term protection of the components from deterioration caused by the environment/atmosphere within the inflator.

    摘要翻译: 车辆安全气囊发生器或充气机的部件涂覆有抗反应性材料,以保护其免受由与最近开发的非叠氮化物高反应性气体发生材料产生的高温反应性气体接触而引起的劣化。 合适的涂层包括由陶瓷和耐反应金属制成的涂层。 这些涂层还为组件提供长期保护,防止由充气机内的环境/气氛引起的恶化。

    Heterogeneous gas generant charges
    3.
    发明授权
    Heterogeneous gas generant charges 失效
    异质气体发生器费用

    公开(公告)号:US5670740A

    公开(公告)日:1997-09-23

    申请号:US540379

    申请日:1995-10-06

    IPC分类号: C06B45/00 C06D5/06 C06B31/12

    CPC分类号: C06D5/06 C06B45/00

    摘要: A gas generant charge comprises a heterogeneous mixture of between about 80 and about 95 wt % of a first gas generant composition 1) and between about 5 and about 20 wt % of a second gas generant composition 2), based on the total weight of 1) plus 2). The first gas generant composition 1) comprises between about 20 and about 40 wt % fuel A) and between about 20 and about 60 wt % oxidizer B). Between about 50 and about 85 wt % of the fuel A) is a triazole or tetrazole compound A.sup.1), and between about 15 and about 50 wt % of the fuel is, a water-soluble fuel A.sup.2). At least about 20 wt % of the oxidizer B), up to 100%, a transition metal oxide B.sup.1); balance of the oxidizer is selected from the group B.sup.2) consisting of alkali and/or alkaline earth metal nitrates, chlorates or perchlorates. The second gas generant composition 2) comprises between about 30 and about 65 wt % of a fuel C) which is an organic compound containing only the elements carbon, hydrogen, and oxygen, the oxygen content being between about 35 and about 65 wt % of the organic compound, and an between about 35 and about 70 wt % of an oxidizer D) which is selected from the group consisting of alkali metal chlorates, alkali metal perchlorates, and mixtures thereof. The mixed generant charge produces less undesirable gases than the first gas generant composition alone and less particulate matter than the second gas generant composition alone.

    摘要翻译: 气体发生剂装料包含基于总重量1的第一气体发生剂组合物1)和约5至约20重量%的第二气体发生剂组合物2)的约80至约95重量%的非均相混合物 )加2)。 第一气体发生剂组合物1)包含约20至约40重量%的燃料A)和约20至约60重量%的氧化剂B)。 约50至约85重量%的燃料A)为三唑或四唑化合物A1),约15至约50重量%的燃料为水溶性燃料A2)。 至少约20重量%的氧化剂B),至多100重量%的过渡金属氧化物B1); 氧化剂的平衡选自由碱金属和/或碱土金属硝酸盐,氯酸盐或高氯酸盐组成的组B2)。 第二气体发生剂组合物2)包含约30至约65重量%的仅含有碳,氢和氧元素的有机化合物的燃料C),氧含量为约35至约65重量% 有机化合物和约35至约70重量%的氧化剂D),其选自碱金属氯酸盐,碱金属高氯酸盐及其混合物。 混合发电剂电荷比单独的第一气体发生剂组合物产生更少的不希望的气体,而不是单独的第二气体发生剂组合物的较少的颗粒物质。

    Air bag filter and seal arrangement
    4.
    发明授权
    Air bag filter and seal arrangement 失效
    气囊过滤器和密封排列

    公开(公告)号:US5564741A

    公开(公告)日:1996-10-15

    申请号:US489467

    申请日:1995-06-12

    CPC分类号: B60R21/2644

    摘要: A filter, seal and port arrangement for a pyrotechnic air bag inflator. The seal consists of a ring or annulus of sheet metal which has a foot section abutting against the filter, and a leg section of the seal angled to form an interference fit against an interior wall of the generator housing. For annular filters used in axial flow inflators, a ring is used at the radially inner and outer edges of the annular filter. For tubular filters used in radial flow inflators, a single seal at a longitudinal end may be sufficient. With such tubular filters, the seal may include a stand-off to form an annular void between the radially outer face of the filter and the wall of the housing. This void will act as a plenum to ensure that a greater volume of the filter is used. The tubular filter itself may also be formed with raised lands such that the interposed grooves form such a plenum. In a similar manner the disk filters may also have plenum producing lands on their outer faces, or the housing may include such lands. The housing may also be provided with tangentially oriented ports between the ignitor and the gas generating material to increase the contact area between the combusting ignitor and the generant, and to reduce the impingement force produced by the combusting ignitor.

    摘要翻译: 用于烟火气囊充气机的过滤器,密封件和端口装置。 密封件由金属板的环或环形件组成,其具有抵靠过滤器的脚部分,并且密封件的腿部成角度以形成与发电机壳体的内壁的过盈配合。 对于用于轴流式充气机的环形过滤器,在环形过滤器的径向内部和外部边缘处使用环。 对于在径流式充气机中使用的管状过滤器,纵向端部的单个密封件可能是足够的。 利用这种管状过滤器,密封件可以包括在过滤器的径向外表面和壳体的壁之间形成环形空隙的间隔件。 该空隙将作为增压室,以确保使用更大体积的过滤器。 管状过滤器本身也可以形成有凸起的焊盘,使得插入的凹槽形成这样的增压室。 以类似的方式,盘式过滤器也可以在其外表面上具有增压室生产区域,或者壳体可以包括这种平台。 壳体还可以设置在点火器和气体发生材料之间的切向定向的端口,以增加燃烧点火器和发生器之间的接触面积,并且减小由燃烧点火器产生的冲击力。

    Internal structure for a two-walled inflator
    5.
    发明授权
    Internal structure for a two-walled inflator 失效
    双壁充气机的内部结构

    公开(公告)号:US5829785A

    公开(公告)日:1998-11-03

    申请号:US620664

    申请日:1996-03-26

    IPC分类号: B60R21/26 B60R21/264

    CPC分类号: B60R21/2644 B60R2021/2648

    摘要: A gas generating inflator assembly for a vehicle safety restraint system including an inflator housing having two walls, an inner wall and an outer wall. The inner and outer walls form a combustion chamber therebetween. A filter pack is disposed within the combustion chamber along an inner diameter of the outer wall. Gas generant is also disposed within the combustion chamber. An internal structure is disposed within the combustion chamber for diffusing the ignitor blast and retaining slag produced by the ignited gas generant. The internal structure is spaced from the filter pack and the inner wall such that a portion of the gas generant is located between the internal structure and the inner wall and another portion of the gas generant is located between the internal structure and the filtration pack. The internal structure can be a ring of solid material, an expanded metal material or screen, a star-shaped configuration having a plurality of portions contacting an inner diameter of the filter pack, or a solid metal structure which may include an internal porous structure screen of wire mesh or expanded metal attached thereto.

    摘要翻译: 一种用于车辆安全限制系统的气体发生充气机组件,其包括具有两个壁的充气机壳体,内壁和外壁。 内壁和外壁之间形成燃烧室。 过滤器组件沿着外壁的内径设置在燃烧室内。 气体发生剂也设置在燃烧室内。 内部结构设置在燃烧室内,用于扩散点火气体和保留由点燃气体发生剂产生的炉渣。 内部结构与过滤器组件和内壁间隔开,使得气体发生剂的一部分位于内部结构和内壁之间,另一部分气体发生剂位于内部结构和过滤组件之间。 内部结构可以是固体材料环,膨胀金属材料或筛网,具有接触过滤器组件的内径的多个部分的星形结构,或者可以包括内部多孔结构筛网的固体金属结构 的丝网或附着于其上的多孔金属。

    Method of forming an automotive air bag filter with support member
    6.
    发明授权
    Method of forming an automotive air bag filter with support member 失效
    形成具有支撑构件的汽车气囊过滤器的方法

    公开(公告)号:US5658517A

    公开(公告)日:1997-08-19

    申请号:US712234

    申请日:1996-09-11

    摘要: A method of forming a filter for an inflatable vehicle occupant restraint inflator includes a tubular filter element having a generally cylindrical interior surface and a generally cylindrical outer surface having a predetermined diameter and a predetermined axial length and spaced radially outwardly from the inner surface. A tubular support member surrounds the outer surface. The support member is of an axial length equal to at least a major portion of the axial length of the outer surface and has an inner diameter substantially similar to the diameter of the outer surface for close surrounding engagement therewith. The support member has a plurality of through openings.

    摘要翻译: 一种形成用于充气车辆乘员约束充气机的过滤器的方法包括:管状过滤器元件,其具有大致圆柱形的内表面和大致圆柱形的外表面,该外表面具有预定直径和预定的轴向长度并与内表面径向向外间隔开。 管状支撑构件围绕外表面。 支撑构件具有等于外表面的轴向长度的至少大部分的轴向长度,并且具有与外表面的直径基本相似的内径,用于与其紧密包围接合。 支撑构件具有多个通孔。

    Airbag inflator having a housing protected from high-temperature
reactive generated gases
    7.
    发明授权
    Airbag inflator having a housing protected from high-temperature reactive generated gases 失效
    安全气囊充气机具有防止高温反应产生的气体的壳体

    公开(公告)号:US5613705A

    公开(公告)日:1997-03-25

    申请号:US410626

    申请日:1995-03-24

    CPC分类号: B60R21/2644 C06D5/06

    摘要: The present invention is directed to the use of protective layers on or adjacent to interior surfaces of the metal housings of gas generators, or inflators, used in automotive airbag systems. The protective layers are provided to protect such housings from deterioration which might otherwise be caused by impingement of the high temperature and chemically reactive generated gases and other associated reaction products on the interior surfaces of the housing. The protective layers can be in the form of coatings or platings on the housing surface or they can be provided as separate structures which shield specific portions of the housing's interior surfaces. The invention is particularly useful in protecting aluminum housings when they are used with the newer high reaction temperature non-azide gas generant materials.

    摘要翻译: 本发明涉及在汽车气囊系统中使用的气体发生器或充气机的金属外壳的内表面上或附近使用保护层。 提供保护层以保护这种壳体不会由于高温和化学反应产生的气体和其它相关联的反应产物在壳体的内表面上的撞击而引起的变质。 保护层可以是在壳体表面上的涂层或电镀的形式,或者它们可以被提供为隔离壳体内表面的特定部分的分离的结构。 当本发明与较新的高反应温度非叠氮化物气体发生剂材料一起使用时,本发明特别适用于保护铝外壳。

    Unitary drop-in airbag filters
    8.
    发明授权
    Unitary drop-in airbag filters 失效
    一体式安全气囊过滤器

    公开(公告)号:US5759219A

    公开(公告)日:1998-06-02

    申请号:US532506

    申请日:1995-09-22

    摘要: Unitary filters for airbags. The filters may be formed from various combinations of ceramic grit, ceramic fiber, metal grit, metal fiber, and non-metal fibers. Combinations of disparate particle sizes may be used to increase filter diffusion and reduce the size of particles filtered. The disparate size particles may be uniformly mixed, or may be in relatively discrete layers. Fibers may be used to increase the strength of the filter. The fibers may be mixed with an initial slurry, or the slurry may be pressed into a mat of the fibers.

    摘要翻译: 一体式安全气囊过滤器。 过滤器可以由陶瓷砂粒,陶瓷纤维,金属砂粒,金属纤维和非金属纤维的各种组合形成。 可以使用不同粒径的组合来增加过滤器扩散并减小过滤的颗粒的尺寸。 不同尺寸的颗粒可以均匀混合,或者可以在相对离散的层中。 可以使用纤维来增加过滤器的强度。 纤维可以与初始浆料混合,或者可以将浆料压入纤维的垫中。

    Automotive air bag filter with support member
    9.
    发明授权
    Automotive air bag filter with support member 失效
    汽车气囊过滤器带支撑件

    公开(公告)号:US5643345A

    公开(公告)日:1997-07-01

    申请号:US529824

    申请日:1995-09-18

    摘要: A filter for an inflatable vehicle occupant restraint inflator includes a tubular filter element having a generally cylindrical interior surface and a generally cylindrical outer surface having a predetermined diameter and a predetermined axial length and spaced radially outwardly from the inner surface. A tubular support member surrounds the outer surface. The support member is of an axial length equal to at least a major portion of the axial length of the outer surface and has an inner diameter substantially similar to the diameter of the outer surface for close surrounding engagement therewith. The support member has a plurality of through openings.

    摘要翻译: 用于充气车辆乘员约束充气机的过滤器包括管状过滤器元件,其具有大致圆柱形的内表面和具有预定直径和预定轴向长度并且与内表面径向向外间隔开的大致圆柱形的外表面。 管状支撑构件围绕外表面。 支撑构件具有等于外表面的轴向长度的至少大部分的轴向长度,并且具有与外表面的直径基本相似的内径,用于与其紧密包围接合。 支撑构件具有多个通孔。