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Programmed-splittingsolid propellant grain for improved ballistic performance of guns
Programmed-splittingsolid propellant grain for improved ballistic performance of guns
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机译:程序分解固体推进剂颗粒,提高了炮弹的弹道性能
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摘要
The invention is an improved solid propellant grain, wherein the solid propellant grain is structured to provide a programmed method and system for splitting the solid propellant grain at a programmed moment to provide an increase in the burning surface. The programmed- splitting of the solid propellant grain provides improved ballistic performance of guns, which yields a higher muzzle velocity for a given projectile without increasing the maximum pressure exerted on the gun chamber. The improvement consists of embodiments that are a plurality of slits of various configurations through the longitudinal length of each grain of solid propellant. The improvement includes a structure to delay end burning of the grains until the longitudinal exterior surface burns sufficiently to split the grain into a plurality of sections at a programmed moment when the increased burning surface is desired to occur. The improvement also consists of another embodiment wherein the grain is structured in a spiral configuration to provide a similar increased burning surface for a programmed moment when the increased burning surface is desired to occur.
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