摘要:
A dual flow inflator for airbags is disclosed, together with related manufacturing, installation, and deployment methods. The inflator may have a gas chamber with a first end with a first exit orifice and a second end with a second exit orifice. The exit orifices may be directed into inlet ports of an inflatable curtain so that inflation gases exit the inflator through the exit orifices and enter directly into the inflatable curtain. The exit orifices may provide axial gas flows in opposite directions so that each gas flow neutralizes the thrust of the other. The exit orifices may comprise frangible structures such as burst discs, scored surfaces, and compression closures. If desired, pistons may be utilized to ensure that the exit orifices are completely and simultaneously opened. Furthermore, the gas chamber may comprise a variety of configurations, including a unitary, one-piece structure, a multi-part structure with vessels attached to a tubular or spherical bulkhead, or a generally spherical shape.
摘要:
Methods and apparatus in which pressure provides precise control over the timing and preferably synchronization of chemical reactions, particularly enzymatic reactions.
摘要:
Systems for use in leak detection and methods for leak detection are provided wherein a radioactive trace material is externally applied to a wall of a chamber which contains a fluid at a relatively high internal pressure.
摘要:
Embodiments include a method for forming a glass which displays visible cracking prior to failure when subjected to predetermined stress level that is greater than a predetermined minimum stress level and less than a failure stress level. The method includes determining a critical flaw size in the glass and introducing a residual stress profile to the glass so that a plurality of visible cracks are formed prior to failure when the glass is subjected to a stress that is greater than the minimum stress level and lower than the critical stress. One method for forming the residual stress profile includes performing a first ion exchange so that a first plurality of ions of a first element in the glass are exchanged with a second plurality of ions of a second element that have a larger volume than the first ions. A second ion exchange is also performed so that a plurality of the second ions in the glass are exchanged back to ions of the first element.
摘要:
A method of hybridizing a first nucleic acid to a second nucleic acid at least partially complementary to the first nucleic acid by (1) providing a sample vessel and pressure controller for the vessel; and (2) contacting the first and second nucleic acids within the vessel at a pressure above ambient pressure that is effective to enhance hybridization of the first and second nucleic acids.
摘要:
An apparatus for inflating an inflatable device, which apparatus includes a pressure vessel having a preformed opening feature and a method of fabricating a corresponding single chamber apparatus for inflating an inflatable device.
摘要:
An improved ignition system for inflators such as those used in airbag passive restraint systems is disclosed. A breakable seal is provided in a storage chamber for a combustible fluid. Upon activation of an initiator the breakable seal is opened and the combustible fluid flows from the storage chamber into a combustion chamber where it is ignited to provide an enhanced volume of heated gas. The heated gas may be used either to directly inflate an associated inflatable apparatus or it may be used to first heat a further compressed gas and the combined gases used to inflate an inflatable apparatus. The breakable seal may be opened by a piston driven plunger. The design of the components of the ignition system provides control over the inflation characteristics.
摘要:
Apparatuses for inflating inflatable devices and associated methods of leak detection relying on the inclusion of a radioactive isotope leak trace material.
摘要:
An improvement in an air bag system for a motor vehicle relating to a multiple level fluid fueled air bag inflator and method of operation thereof are provided. Such a multiple level inflator includes a stored gas chamber, a combustion chamber wherein, upon actuation, a fluid fuel and an oxidant are burned, an opener to open the stored gas chamber and an initiator device to initiate the burning of the fluid fuel and oxidant in the combustion chamber. Various performance levels can be obtained through the proper selected actuation and sequencing of actuation of the opener and the initiator device.
摘要:
An airbag module and mounting. An inflator is received within the cushion, such that the cushion wraps around the back side of the inflator. The inflator includes an extending fastener, and possibly an extending tab. The inflator, or the tab, is partially retained by a receiving structure on the seat. The fastener extends through another section of the seat, such that securing the fastener secures the entire inflator. Additionally, since the cushion surrounds the inflator, the cushion is also secured. To maintain the cushion in the folded condition, a frangible wrap extends around the cushion and inflator. Upon inflation, the frangible wrap, and the seat covering, are torn by the expanding cushion to permit further expansion. This arrangement eliminates the need for a protective housing for the inflator and cushion. Other mounting arrangements are also provided.