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    • 8. 发明授权
    • Arrangement for reducing the base drag in projectiles
    • 减少射弹基地阻力的布置
    • US4554872A
    • 1985-11-26
    • US557664
    • 1983-12-02
    • Ulrich Schleicher
    • Ulrich Schleicher
    • F42B10/40F42B13/00
    • F42B10/40
    • An arrangement for reducing the base drag in projectiles constructed pursuant to the high-low pressure system including a gas-generating charge, a chamber with a pressure-reducing component, and a discharge aperture provided in the base wall. In the arrangement for the reduction of the base drag in projectiles, the charge is annularly shaped, the pressure-reducing component is formed as a tube axially extending through the charge and possesses a multiplicity of nozzles. Through the provision of the large number or multiplicity of nozzles, the tube, which separates the high-pressure space from the low-pressure space, a relatively gentle gas jet exits from the bottom of the projectile. For this purpose, of significance is the swirling of the individual gas jets in the low-pressure space in accordance with the principle of the countercurrent process. The vacuum in the region of the projectile base is reduced to a minimum due to the gentle jet.
    • 一种用于减少根据包括气体发生装置,具有减压部件的室和设置在基壁中的排出孔的高低压系统构造的弹丸中的基础阻力的装置。 在用于减少抛射体中的基底阻力的布置中,电荷是环形的,减压部件形成为轴向延伸穿过电荷并具有多个喷嘴的管。 通过设置大量或多个喷嘴,将高压空间与低压空间分离的管,相对温和的气体射流从射弹的底部离开。 为此,重要的是根据逆流过程的原理,在低压空间内单独喷射气体的旋转。 由于温和的射流,射弹底座区域的真空度降至最低。
    • 10. 发明授权
    • Arrangement for aerodynamically braking the rotational movement of a body
    • 用于空气动力学地制动身体的旋转运动的布置
    • US4674705A
    • 1987-06-23
    • US739971
    • 1985-05-31
    • Ulrich Schleicher
    • Ulrich Schleicher
    • F42B10/16F42B10/54F42B15/02
    • F42B10/54F42B10/16
    • An arrangement for aerodynamically braking the rotational movement of a body, especially a secondary or subordinate ammunition member which is ejected from its carrier, through the utilization of flexible braking surface elements which are articulated to the wall of the body so as to be swingable outwardly. A flexible braking surface of that type can be simply configured as a sheet metal plate or fabric which is pliantly bendable in every direction, which allows it to be slung about the wall of the member so as to closely lie thereagainst, and thereby protrudes only slightly; but which, on the other hand, because of its weight (and at times through a weight exerting a centrifugal force, which is additionally attached at its end) will dependently and rapidly unfold when there is released its restraint from its initially rolled-up condition; for example, when the member is to be expelled from its built-in position within a carrier.
    • 一种用于空气动力地制动身体的旋转运动的装置,特别是从其载体喷射的次级或次级弹药构件,通过利用柔性制动表面元件,该柔性制动表面元件铰接到主体的壁上以便向外摆动。 这种类型的柔性制动表面可以简单地构造成在每个方向上均匀地弯曲的金属板或织物,这允许其围绕构件的壁被悬挂以紧密地靠在构件上,从而仅稍微突出 ; 但是另一方面,由于其重量(并且有时通过施加离心力的时候,附加在其端部处)将会在释放其从最初卷起状态的约束的同时迅速展开 ; 例如,当构件被从其内部的位置排出时,