초록 ▼

A time delay gas generator for military missiles, characterized by very long shelf life and accurately-determined time delay. Time delay powder is layered at high pressure, and causes heating of a metal disc at the end of a time delay interval that is accurately known. Such heating ignites an output

A time delay gas generator for military missiles, characterized by very long shelf life and accurately-determined time delay. Time delay powder is layered at high pressure, and causes heating of a metal disc at the end of a time delay interval that is accurately known. Such heating ignites an output charged to generate gas, the gas breaking a closure and performing a function in the missile.

대표청구항 ▼

An electrically-initiated time-delay gas generator, which comprises: (a) a housing having an elongate passage therein, said passage having an inner end portion that extends to an end of said housing. said housing having a relatively large diameter hollow body portion and a relatively small diameter

An electrically-initiated time-delay gas generator, which comprises: (a) a housing having an elongate passage therein, said passage having an inner end portion that extends to an end of said housing. said housing having a relatively large diameter hollow body portion and a relatively small diameter head portion, said body portion having a relatively large chamber therein, said body portion and said head portion being coaxial, said elongate passage extending from said relatively large chamber to the inner end of said head portion, (b) filter means provided in said relatively large chamber in circuit with said igniter assembly to prevent undesired firing of said igniter assembly, (c) a metal barrier disc mounted in said passage transversely thereof so as to block said passage, said barrier disc being spaced from the inner end of said passage, the portion of said passage on the opposite side of said barrier disc from said inner passage end being unvented, (d) an output seal provided in sealing relationship across said inner end of said passage so as to seal the portion of said passage between said barrier disc and said inner end, said output seal being adapted to rupture and permit rapid escape of gas from said last-mentioned passage portion, (e) an electrically-operated igniter assembly communicating with the outer end of said passage, said igniter assembly including ignition powder and means to effect burning of said powder when an electric current is delivered to said igniter assembly, (f) a delay column comprising a plurality of layers of delay powder provided in said passage between said igniter assembly and said barrier disc, said layers being compressed in place in said passage at pressures, sufficiently high to provide function time tolerances of less than 25msec, the outer one of said layers being packed against said barrier disc, (g) an igniter layer provided in said passage between said delay column and said igniter assembly, said igniter layer being packed against said delay column, and (h) an output charge provided in said passage between said barrier disc and said output seal, said delay column being adapted to burn over an accurately predetermined time period and then to heat said barrier disc, said barrier disc being thus heated to ignite and generate high-pressure gas.