摘要:
A liquid fueled inflator for a vehicle passive restraint airbag system is enhanced by storing the liquid fuel or propellant in a porous solid structure. The structure provides enhanced control over the combustion process by its influence over disbursement of the fuel or propellant into the combustion chamber. Porous structures which meter the disbursement of fuel or propellant into the combustion chamber, and frangible porous structures which propel the fuel throughout the combustion chamber are described.
摘要:
An inflator apparatus wherein the molecular weight of the gas mixture therein contained is manipulated by varying the relative amounts of the various constituents thereof. Through such manipulation and tight control of gas mixture molecular weight, the performance of the inflator can be properly tuned such as to desirably control or influence the speed of deployment of an associated airbag cushion and minimize or reduce damage to an associated airbag cushion caused by excessive deployment speeds, as well as satisfy the relatively onerous inflation demands required for proper or desired operation of various close proximity airbag cushions or inflatable restraint devices.
摘要:
An apparatus and method for inflating a vehicular inflatable device are provided wherein inflation gas is produced via a dissociative material wherein an initiator includes an enhanced fuel pyrotechnic formulation which, in addition to initiating dissociation of at least a portion of a quantity of gas source material contained within the inflator, forming dissociation products used to inflate the device, also forms particles to interact with one or more of at least a portion of the remaining quantity of gas source material contained within the inflator and the dissociation products to form additional inflation products for inflating the inflatable device.
摘要:
Inflator device assemblies containing an expandable fluid effective to provide a gaseous inflation medium also advantageously employ or incorporate a pyrotechnic material such as to augment or enhance at least one fill characteristic of the gaseous inflation medium. The pyrotechnic material is provided on a selected non-gas generant surface within the inflator device. Suitable pyrotechnic compositions may include a binder additive effective to adhere the pyrotechnic composition to a surface within the inflator device.
摘要:
An airbag inflator housing is disclosed that provides a multi-dimensional inflation surface. The housing may include a back wall, a front wall, and at least one side wall connecting the front wall to the back wall to enclose a volume within the housing. A nozzle array may be integrated with the front wall. The nozzle array may include a plurality of pre-formed and sealed nozzles. The nozzles may be arranged according to a two-dimensional array to provide an inflation surface to inflate a connected airbag. The nozzles may be formed using MEMS processes to provide very small and precise nozzles.
摘要:
An apparatus and method for inflating an inflatable device which involve a heat source composed of a load of fuel material and an initiator is actuatable to be in heat transmitting communication such as to initiate dissociation of a gas source material to form at least one gaseous dissociation product used to inflate the inflatable device.
摘要:
An initiator suitable for use with airbag passive restraint systems and which does not use pyrotechnic materials is disclosed. The initiator provides an electrically actuated igniter which ignites an adjacently stored non-pyrotechnic fluid combustible material which may comprise a mixture of a fluid fuel and a fluid oxidizer, a fluid monopropellant or a fluid exothermically decomposable material. A sub-assembly of the non-pyrotechnic initiator with a fuel containment chamber and inflators which use the non-pyrotechnic initiator are also disclosed.
摘要:
A method and apparatus for igniting a pyrotechnic gas generator, or inflator, such as those used in automotive airbag systems is disclosed. The ignition system uses a flammable gas to ignite the pyrotechnic gas generant. The flammable gas can be stored either throughout interior free space in the inflator or it can be maintained in a separate sealed container either separately or jointly with the pyrotechnic gas generant. The method and apparatus offer both cost savings and a reduction in delay time over conventional pyrotechnic ignition systems.
摘要:
An improved adaptive output inflator is provided wherein inflator performance, such as measured by inflator gas output, can be appropriately varied and selected by appropriately varying and selecting the operational oxidant composition of the inflator.