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公开(公告)号：US5803495A
公开(公告)日：1998-09-08
申请号：US636077
申请日：1996-04-22
IPC分类号： B60R21/16 , B60R21/2165
CPC分类号： B60R21/2342 , B60R2021/2633
摘要： A variable volume airbag cushion. The cushion includes a front wall having a central region for contacting the passenger, and a periphery. This periphery is connected to a periphery of a rear wall. The rear wall includes a central inlet operatively connected to a gas generator. The generator provides gas to initially inflate the volume defined between the front wall and rear walls. The rear wall includes at least one pleat therein, with the pleat held by a frangible connection such as a tear seam. It is preferred that the pleat be folded over to lie against the remainder of the rear wall, and secured thereto, again by a frangible connection. The pleats reduce the size of the rear wall, and therefore the volume between the front and rear walls. The frangible connections will rupture above a predetermined gas pressure in the cushion. This permits the rear wall to expand to its full size, increasing the volume between the front and rear walls. The cushion may therefore compensate for increase gas production due to higher ambient temperatures, or may be used with an adaptive gas generator which produces larger or smaller amounts of gas based upon various conditions.
摘要翻译： 一个可变体积的气囊垫。 衬垫包括具有用于接触乘客的中心区域的前壁和周边。 该周边连接到后壁的周边。 后壁包括可操作地连接到气体发生器的中心入口。 发电机提供气体以最初膨胀在前壁和后壁之间限定的体积。 后壁在其中包括至少一个褶皱，褶皱由诸如撕裂缝的易碎连接保持。 优选地，将褶皱折叠以抵靠后壁的其余部分，并且通过易碎的连接再次固定到其上。 褶皱减小了后壁的尺寸，因此减小了前壁和后壁之间的体积。 易碎连接将破裂在衬垫中的预定气体压力之上。 这允许后壁扩展到其全尺寸，增加前壁和后壁之间的体积。 因此，衬垫可以补偿由于较高的环境温度而增加的气体产量，或者可以与基于各种条件产生更大或更少量的气体的自适应气体发生器一起使用。
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公开(公告)号：US5443286A
公开(公告)日：1995-08-22
申请号：US106291
申请日：1993-08-13
IPC分类号： B60R21/26 , B60R21/264
CPC分类号： B60R21/2644 , B60R2021/26029 , B60R2021/26064
摘要： A gas generator for vehicle occupant restraint systems comprises an elongated housing having gas outlet openings, a sealed, rupturable gas generant cartridge positioned within the housing, and pyrotechnic gas generant contained in the cartridge in the form of a plurality of wafers having openings defining a central passage. An igniter capsule mounted at one end of the housing has an exit opening juxtaposed the sealed gas generant cartridge and the central passage of the gas generant therein. The igniter capsule contains ignitor material, and an initiator and initiator charge. The initiator ignites the ignitor material which expels a fireball of hot combustion products from the capsules exit opening, rupturing the sealed cartridge and igniting the gas generant charge to produce gas for inflating an air bag. A rupturable seal is provided over the exit opening of the ignitor capsule and a nozzle directs hot combustion products to the gas generant cartridge. The initiator charge is auto ignitor material for operating the gas generator if it is exposed to fire. The ignitor capsule comprises overlapping metal parts, and is mounted as a closure of the elongated housing. The gas generant cartridge is placed in the housing surrounded by filtering and cooling screens. One end of the rupturable gas generant cartridge adjacent the ignitor capsule outlet is scored for rupturing inwardly to admit the ignitor fireball. The cartridge contains wraps of filter screen to provide structural rigidity, and additional filter and cooling materials surround the cartridge.
摘要翻译： 用于车辆乘员约束系统的气体发生器包括具有气体出口开口的细长壳体，位于壳体内的密封的可破裂的气体发生器筒，以及包含在多个晶片形式的筒中的烟火发生器，其具有限定中心 通道。 安装在壳体一端的点火器胶囊具有与密封气体发生器筒和气体发生剂的中心通道并列的出口。 点火器胶囊包含点火器材料，起始器和引发器充电。 起动器点燃点火器材料，其从胶囊出口开口排出热燃烧产物的火球，破裂密封的筒体并点燃气体发生剂装料以产生用于使气囊膨胀的气体。 在点火器胶囊的出口处设置可破裂的密封件，并且喷嘴将热燃烧产物引导到气体发生器筒。 引燃器充电是用于在气体发生器暴露于火中时操作的自动点火器材料。 点火器胶囊包括重叠的金属部件，并且被安装为细长壳体的封闭件。 气体发生器筒被放置在由过滤和冷却屏幕包围的壳体中。 与点火器胶囊出口相邻的可破裂的气体发生器筒的一端被刻划以向内破裂以允许点火器火球。 墨盒包含过滤网的包装，以提供结构刚性，以及围绕墨盒的附加过滤器和冷却材料。
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公开(公告)号：US5200574A
公开(公告)日：1993-04-06
申请号：US837080
申请日：1992-02-24
申请人： Donald J. Cunningham , John E. Allard , Virginia E. Chandler , Bradley W. Smith , David B. Monk
发明人： Donald J. Cunningham , John E. Allard , Virginia E. Chandler , Bradley W. Smith , David B. Monk
CPC分类号： B60R21/2644 , F42B3/04 , F42B3/103 , F42B3/188 , B60R2021/26029
摘要： A universal squib connector for automobile driver and passenger air bag collision protection systems includes a ferrite bead having two holes in spaced relation with an electric terminal positioned in each hole for making electrical contact with an associated one of the protruding pins of a pin type electric squib. The arrangement enables the use of a single configuration of gas generator and a single configuration of electric initiator or squib for the igniter system of the gas generator while providing EMI/RFI protection and the advantages realizable from both pin type and pig tail type connection of the collision sensor to the input conductors or lead wires to the squib and also the electrical system of the vehicle according to the preferences of individual automobile manufacturers.
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公开(公告)号：US4878690A
公开(公告)日：1989-11-07
申请号：US166066
申请日：1988-03-09
申请人： Donald J. Cunningham
发明人： Donald J. Cunningham
IPC分类号： B60R21/261 , B60R21/264
CPC分类号： B60R21/2644 , B60R21/261
摘要： A lightweight and inexpensive inflator for a vehicle passenger side restraint bag. The inflator includes a thin igniter housing member and also includes a thin arcuate barrier member which defines a combustion chamber for holding gas generant material for combustion thereof. The inflator housing has generated gas outlet apertures only on one side and the barrier member faces that side so that generated gas is directed toward the other side of the housing and is then redirected through a filter pack to the apertures. The filter pack includes a plenum providing screen which is blocked to the entrance of redirected gas by the pressing of other layers of the filter pack against the housing wall whereby the redirected gas is directed through a fibrous filter member before being directed into the plenum and out through the housing apertures. After leaving the housing apertures, the generated and filtered gas is directed through another filter pack which is disposed along the wall of the bag retainer prior to the gas flowing into the airbag.
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公开(公告)号：US5241910A
公开(公告)日：1993-09-07
申请号：US680979
申请日：1991-04-05
IPC分类号： B60R21/26 , B60R21/264 , F42B3/04 , F42B3/103 , F42B3/188
CPC分类号： B60R21/2644 , F42B3/04 , F42B3/103 , F42B3/188 , B60R2021/26029
摘要： A universal squib connector for automobile driver and passenger air bag collision protection systems includes a ferrite bead having two holes in spaced relation with an electric terminal positioned in each hole for making electrical contact with an associated one of the protruding pins of a pin type electric squib. The arrangement enables the use of a single configuration of gas generator and a single configuration of electric initiator or squib for the igniter system of the gas generator while providing EMI/RFI protection and the advantages realizable from both pin type and pig tail type connection of the collision sensor to the input conductors or lead wires to the squib and also the electrical system of the vehicle according to the preferences of individual automobile manufacturers.
摘要翻译： 用于汽车驾驶员和乘客气囊碰撞保护系统的通用爆管连接器包括铁氧体磁珠，其具有与位于每个孔中的电气端子间隔开的两个孔，用于与销型电爆管的相关联的一个突出销电接触 。 该装置使得能够使用气体发生器的单个配置和用于气体发生器的点火器系统的单个配置的电启动器或点火器，同时提供EMI / RFI保护以及从针式和猪尾型连接可实现的优点 根据个别汽车制造商的偏好，将碰撞传感器连接到输入导体或引线到火炬以及车辆的电气系统。
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公开(公告)号：US4950458A
公开(公告)日：1990-08-21
申请号：US369874
申请日：1989-06-22
申请人： Donald J. Cunningham
发明人： Donald J. Cunningham
IPC分类号： B01J7/00 , B60R21/26 , B60R21/264
CPC分类号： B60R21/2644 , B01J7/00 , B60R2021/2648
摘要： An impact extruded perforated aluminum housing contains a two-stage gas generator having a perforated bulkhead positioned between the stages. Each stage includes a combustion chamber having an igniter and pyrotechnic charge therein with cooling and filter screens surrounding the combustion chamber. The igniter of the first stage is fired by a squib responsively to an external electrical signal. A rupturable barrier and a ball valve associated with the bulkhead control the flow of gas through the bulkhead and provide mechanical timing for ignition delay in the firing of the second stage after the first stage has been fired, and also provide pressure control after ignition of both stages to prevent repressurizing the first stage. A rupturable foil barrier surrounding the combustion chamber in the first stage promotes a rapid rise in pressure therein and thus breakout sooner therefrom of gas to an airbag to be inflated. A rupturable foil barrier surrounds the cooling and filter screens in the second stage and delays the breakout of gas therefrom to the airbag as the pressure rises, the rate of which pressure rise is less than that at which the pressure in the first stage rises. The thickness of the foil barrier surrounding the combustion and filter screens is selected to be sufficiently less than that of the foil barrier surrounding the first stage combustion chamber so as to achieve substantial equalization of pressure in the first and second stages.
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公开(公告)号：US4029014A
公开(公告)日：1977-06-14
申请号：US660097
申请日：1976-02-23
申请人： Donald J. Cunningham
发明人： Donald J. Cunningham
摘要： A safety igniter for flares is attachable to the flare parachute by a lanyard that operates the igniter when the parachute opens. The igniter is packaged in a housing that is mounted into the flare casing adjacent the ignition surface of the flare candle. The housing has two contiguous bores of different diameters, the larger bore containing a primer-charge holder and a firing-pin holder, both of which are movable in the bore. The primer-charge holder is retained adjacent the shoulder at the juncture of the bores, so that its motion is rotational only; while that of the firing-pin holder is primarily a forceful axial motion produced by the parachute lanyard, to which it is operatively attached. The primer charge is normally out of angular alignment with the firing pin and the chamber in the housing containing a pyrotechnic charge, but is aligned with a dead-air chamber. However, means for rotating the primer-charge holder is actuated in response to axial motion of the firing-pin holder, so that the primer charge is brought into alignment with the firing pin and pyrotechnic charge before it is struck by the firing pin. In one embodiment, all three of these items are normally mutually out of angular alignment, so that the firing-pin holder must also be rotated. When the firing pin strikes the primer charge, it discharges into the pyrotechnic material which, in turn, discharges hot gases onto the ignition surface of the flare candle.
摘要翻译： 闪电的安全点火器可以通过在降落伞打开时操作点火器的挂绳连接到火炬降落伞上。 点火器被包装在与火炬蜡烛的点火表面相邻的外壳中。 壳体具有两个不同直径的连续的孔，较大的孔包含底座充电保持器和击打针保持器，它们都可以在孔中移动。 底座电荷保持器在孔的接合处保持在肩部附近，使得其运动仅旋转; 而射针支架的主要是由降落伞系绳产生的有力的轴向运动，其可操作地连接到该轴向运动。 底漆装料通常与打击销和包含烟火装料的壳体中的腔室成角度对准，但是与死气室对准。 然而，响应于点火针保持器的轴向运动而致动用于旋转底漆充电保持器的装置，使得底漆装料在撞击销被撞击之前与撞针和烟火充电对齐。 在一个实施例中，这些物品中的所有三个通常都相互偏离角度对准，使得击球针座也必须旋转。 当撞针撞击底漆时，它会排放到烟火材料中，然后再将热气体排放到火炬蜡烛的点火表面上。
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公开(公告)号：US5109772A
公开(公告)日：1992-05-05
申请号：US643626
申请日：1991-01-22
IPC分类号： B60R21/26 , B60R21/264 , C06C9/00
CPC分类号： B60R21/2644 , C06C9/00 , B60R2021/26041 , B60R2021/26047
摘要： Because of the length of the airbag gas generator that is used on the passenger side of an automotive vehicle, it has been extremely difficult and expensive to provide an ignition system that would ignite solid gas generant pellets and wafers uniformly throughout the entire length thereof. In order to effect ignition of all pellets throughout the length of the gas generator combustion chamber substantially simultaneously, there is positioned in concentric relation therein an elongated BKNO.sub.3 dipped igniter tube having similarly dipped disks positioned thereon in spaced relation, transversely thereof, BKNO.sub.3 powder initiated by a squib directs fire down the igniter tube to produce a rapid flash of fire that ignites the BKNO.sub.3 dipped igniter tube and disks and surrounding gas generant pellets. The hot gas from the gas generant pellets is cooled and filtered by a screen pack assembly prior to exiting through holes in the cylindrical wall of the gas generator and directed to an airbag for inflation.
摘要翻译： 由于在机动车辆的乘客侧使用的气囊发生器的长度，提供点火系统是非常困难和昂贵的，该点火系统将在其整个长度上均匀地点燃固体气体发生剂颗粒和晶片。 为了在气体发生器燃烧室的整个长度上基本上同时地对所有颗粒进行点燃，在其中具有同心的关系，其中具有类似的浸渍盘的细长BKNO 3浸渍点火器管，其间隔开的关系定位在其上，横向地由BKNO 3粉末引发 点火器将点火器管引导起来，产生快速闪光，点燃BKNO3浸入式点火器管和盘和周围的气体发生器颗粒。 来自气体发生剂颗粒的热气体在通过气体发生器的圆柱形壁中的孔离开之前被筛网组件冷却并过滤并且被引导到用于充气的气囊。
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公开(公告)号：US4943086A
公开(公告)日：1990-07-24
申请号：US374426
申请日：1989-06-30
申请人： Donald J. Cunningham
发明人： Donald J. Cunningham
IPC分类号： B01J7/00 , B60R21/26 , B60R21/264
CPC分类号： B60R21/2644 , B01J7/00 , B60R2021/2648
摘要： A vehicle inflatable crash protection bag inflator. The inflator housing comprises two structural components which are welded together by only two welded joints to define an inner or combustion chamber containing gas generant material and an outer or diffuser chamber. An igniter tube is disposed in the combustion chamber free of attachment to one of the structural components and is press fit or otherwise suitably attached to a mounting post on the other structural component. The igniter tube is perforated and wrapped with a foil whereby the igniter material is disposed in direct contact with a squib to better ensure ignition thereof. Alternatively, the igniter tube and igniter material may be eliminated and the gas generant material disposed in direct closely surrounding relation to the squib. The housing is composed of aluminum, and the inflator has a minimum weight and size.
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公开(公告)号：US4547342A
公开(公告)日：1985-10-15
申请号：US595774
申请日：1984-04-02
IPC分类号： B01J7/00 , B60R21/26 , B60R21/264 , F42B3/04 , C01B21/02
CPC分类号： B60R21/2644 , B01J7/00 , F42B3/04 , Y10T137/1647
摘要： A gas generator or inflator particularly for the inflation of inflatable protective bags that are used in vehicle safety systems includes first and second aluminum structural components. The first component, a diffuser shell having outlet ports, includes integrally formed concentric cylinders which define chambers containing ignition materials, a solid gas generant composition and filters and provide ports for the passage of generated gases from chamber to chamber and then through the outlet ports. The second component, a base shell, has an attachment flange, includes an initiator, and is provided with three concentric surfaces that mate with the ends of the concentric cylinders of the first component. The three concentric cylinders of the first component are simultaneously joined with the concentric mating surfaces of the second component by a single inertia welding operation.
摘要翻译： 特别用于汽车安全系统中使用的充气保护袋的充气的气体发生器或充气器包括第一和第二铝结构部件。 第一部件，具有出口的扩散器壳体包括一体形成的同心圆筒，其限定包含点燃材料的腔室，固体气体发生剂组合物和过滤器，并且提供用于使所产生的气体从腔室通过并且然后通过出口的端口。 第二部件是基部壳体，具有附接凸缘，包括起动器，并且设置有与第一部件的同心圆筒的端部配合的三个同心表面。 通过单个惯性焊接操作，第一部件的三个同心圆筒同时与第二部件的同心配合表面接合。
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