Abstract:
An inflator that includes a quantity of gas generant housed within a chamber. A liquid and a piston are also housed within another chamber. This chamber is sealed by a burst disk. The piston includes an opening. During deployment of the inflator, the burst disk is ruptured and the piston moves towards the distal end of the inflator. The movement of the piston hydraulically expels the liquid through the opening in the piston such that the liquid cools and contacts the gas formed by combustion of the gas generant.
Abstract:
In at least one embodiment of the present invention, a seatbelt pretensioner is provided. The pretensioner comprises a cylinder having a proximal section which defines a gas chamber that forms at least a portion of an interior space defined by the cylinder. Extending distally from the proximal section is a guide section. Disposed within the interior space is a piston that is moveable toward a distal end of the guide section. The piston has a proximal portion and a distal portion that extends from the proximal portion. The proximal and distal portions are disposed respectively adjacent to the proximal and guide sections. The distal portion is configured for attaching to an anchor that is coupled to webbing of the seatbelt. In fluid communication with the gas chamber is a gas generator. The gas generator is configured for generating gas to move the piston, tensioning the seatbelt.
Abstract:
An inflator device for inflating an inflatable cushion of an inflatable cushion restraint system. The inflator device includes a reaction housing defining a reaction chamber containing a supply of gas generant material. An initiator device is connected to the reaction housing and is in reaction initiating communication with the supply of gas generant material. A filter housing is disposed around at least a portion of the reaction housing and at least in part defines a filter chamber. The filter housing includes an annular discharge opening. The produced inflation gas discharges from the filter housing to the inflatable cushion through the annular discharge opening. A filter is disposed in the filter chamber and external of the reaction housing.
Abstract:
An apparatus for mounting an airbag inflator to a vehicle includes a mounting adapter. The mounting adapter includes a base and at least one slot, wherein the base captures the inflator. A p-bracket that engages the slot is also added, wherein the p-bracket captures the inflator. A mounting tether looped is also around the p-bracket. A tether retainer or a wire harness retainer may also be added to the adapter.
Abstract:
An inflatable curtain airbag module is disclosed. The airbag module may include an inflatable curtain that has several inflatable chambers, at least one of which provides impact protection below an A-pillar of a vehicle. The chamber below the A-pillar may be bottom-filled, while the other chambers are top-filled. The airbag module may also include a sail panel attached to the inflatable curtain at an angle with respect to a direction of compaction of the inflatable curtain.
Abstract:
A new type of inflator that may be used to inflate an airbag is disclosed. The inflator will have a longitudinal axis, a first chamber, and a filter. The filter may be positioned outside of the first chamber. A first quantity of gas generant is positioned within the first chamber. A first strainer having a plurality of gas flow holes is also positioned within the first chamber. The first quantity of gas generant is located exterior of the strainer. Upon combustion of the first quantity of gas generant produces a first quantity of gas that flows towards the longitudinal axis while passing through the gas flow holes, enters the filter, and then flows away from the longitudinal axis while passing through the filter.
Abstract:
An inflator device for an inflatable cushion restraint system. The inflator device includes a housing at least in part defining a chamber containing a stored gas. The housing includes a first outlet orifice and a second outlet orifice. A first rupturable seal is disposed over the first outlet orifice and a second rupturable seal is disposed over the second outlet orifice. The second outlet orifice is a pressure release orifice for releasing the pressurized gas upon unanticipated elevated temperatures, such as during bonfire conditions. A plug is disposed in the second outlet orifice. The plug includes a low melting temperature material adjacent the second rupturable seal. The low melting temperature material melts at or below an auto-ignition temperature of the inflator device to allow the second rupturable seal to rupture to vent the pressurized stored gas.
Abstract:
An airbag module includes an inflator and an airbag housed within a housing. The airbag has a cushion inflator hub portion that includes one or more tab extensions and an opening. The tab extensions define at least a portion of the periphery of the opening. A retainer ring is also added to the airbag module. The retainer ring has an aperture through which the inflator may be passed. The retainer ring includes one or more relief cuts positioned to receive the tab extensions. Specifically, the tab extensions are bent to pass through the relief cuts.
Abstract:
An initiator assembly for an inflator device. The initiator assembly includes an initiator. The initiator has an initiator cup at least in part defining a storage chamber containing at least one reactive charge and has at least one electrical connector in reaction initiating communication with the at least one reactive charge. The initiator assembly also includes an initiator retainer element connected to the initiator and a connector socket. The initiator retainer element is adapted to be disposed on a first side of a wall of the inflator device and the connector socket is adapted to be disposed on a second side of the wall opposite the first side. The initiator assembly is adapted to snap-lock to the inflator device.
Abstract:
A relief valve for use with a conduit includes a housing attached to the conduit and an engagement member slidably disposed within the housing and movable between a retracted position and an extended position. The engagement member pierces the conduit when moved from the retracted position to the extended position.