초록 ▼

A non-hybrid pyrotechnic filterless inflator, i.e., gas generator, for an automotive passive restraint air bag having a generally discoidally-shaped pressure vessel having a diameter that preferably is greater than or about equal to its height formed of a cup-shaped closure cap and a base member and

A non-hybrid pyrotechnic filterless inflator, i.e., gas generator, for an automotive passive restraint air bag having a generally discoidally-shaped pressure vessel having a diameter that preferably is greater than or about equal to its height formed of a cup-shaped closure cap and a base member and having at least one exhaust nozzle for directing gaseous products out of the inflator and into the air bag. The pressure vessel contains an initiator assembly and a gas-generant cup assembly including a stamped metal cup which contains the main pyrotechnic gas-generating propellant composition positioned about and in some embodiments in contact with the initiator assembly and preferably spaced a small distance from the walls of the pressure vessel. The initiator assembly includes an initiator plug received in the opening of the base, a standard initiator which ignites the gas-generating products or ignition-enhancing materials in the inflator and the electrical connections to connect the inflator to a crash-sensing diagnostic system. An ignition-enhancer cup assembly may be provided which includes an ignition enhancing charge material placed inside a stamped metal cup containing numerous gas ports and positioned about the initiator assembly to place the ignition-enhancing generant charge about and in contact with the initiator.

대표청구항 ▼

[ We claim:] [1.] A method of assembling an inflator comprising:(a) providing a substantially cup-shaped base member having first and second ends, the base member open at the first end and defining in the second end an aperture configured and adapted for insertion therein of the initiator assembly;(

[ We claim:] [1.] A method of assembling an inflator comprising:(a) providing a substantially cup-shaped base member having first and second ends, the base member open at the first end and defining in the second end an aperture configured and adapted for insertion therein of the initiator assembly;(b) installing the initiator assembly adapted for effecting combustion of a pyrotechnic material into the aperture of the second end of the base member;(c) positioning a gas-generant container comprising a gas-generating composition and a gas-generant cup configured and adapted for containing the gas-generating composition in surrounding relation to the initiator assembly; and(d) closing the base member first end by sealing thereover a closure cap, said closure cap secured to the base member; and(e) press-fitting the gas-generant cup in surrounding relation to the initiator assembly.