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    • 5. 发明申请
    • PRISMATIC-SHAPED VORTEX GENERATORS
    • 原型VORTEX发电机
    • US20110095135A1
    • 2011-04-28
    • US12606811
    • 2009-10-27
    • Daniel N. MillerDan J. Baruzzini
    • Daniel N. MillerDan J. Baruzzini
    • B64C21/10
    • B64C23/06Y02T50/162
    • A prismatic vortex generator for attenuating flow separation which occurs during supersonic flow of air over structure such as an aircraft airfoil, its fuselage, surfaces forming a part of a jet engine inlet, or similar surfaces subjected to supersonic airflow. A series of prismatic vortex generators are provided, each of which is configured to generate a vortex which attenuates flow separation and weight drag resulting from the supersonic airflow. Each prismatic vortex generator has a prismatic shape with a base, leading and trailing ends, and sidewalls that incline toward and join each other to form an apex. The leading end of each prismatic vortex generators is inclined away from the direction of flow.
    • 一种用于衰减流体分离的棱柱形涡流发生器,其在超音速流动的空气结构如飞机机翼,其机身,形成喷气发动机入口的一部分的表面或经受超音速气流的类似表面之间发生。 提供了一系列棱柱形涡流发生器,其中的每一个被配置成产生一个涡流,其减弱由超音速气流引起的流动分离和重量阻力。 每个棱柱形涡流发生器具有棱柱形状,其具有基部,前端和后端以及侧壁,其倾斜并彼此连接以形成顶​​点。 每个棱柱形涡流发生器的前端倾斜远离流动方向。
    • 7. 发明授权
    • Method and system of pulsed or unsteady ejector
    • 脉冲或不稳定喷射器的方法和系统
    • US06308740B1
    • 2001-10-30
    • US09639187
    • 2000-08-15
    • Brian R. SmithDaniel N. MillerPatrick J. YagleErich E. BenderKerry B. Ginn
    • Brian R. SmithDaniel N. MillerPatrick J. YagleErich E. BenderKerry B. Ginn
    • E03B500
    • F02C9/50F02C7/04F04B45/04F04F5/16F04F5/54Y10T137/87619Y10T137/87652
    • The present invention reveals a method and apparatus for more efficiently injecting a primary fluid flow in a fluid ejector used to pump lower velocity fluid from a secondary source. In one embodiment, the primary fluid flow is a pulsed or unsteady fluid flow contained within an inner nozzle situated within a secondary flow field. This secondary fluid flow is bounded within the walls of an ejector or shroud. The secondary and primary fluid flows meet within the ejector shroud section wherein the secondary fluid flow is entrained by the primary fluid flow. The geometry of the ejector shroud section where the primary and secondary fluids mix is such as to allow the beginning of primary injector pulse to be synchronized with an acoustic wave moving upstream through the ejector initiated by the exiting of the previous pulse from the ejector shroud. The ejector's geometric properties are determined by the acoustic properties, frequency, duty cycle, and amplitude, of the pulsed primary fluid flow. Furthermore, the frequency, duty cycle and amplitude of the primary fluid flow may be varied in order to vary the efficiency of the injector.
    • 本发明揭示了一种用于在用于从次级源泵送较低速度流体的流体喷射器中更有效地喷射主流体流的方法和装置。 在一个实施例中,主流体流是包含在位于二次流场内的内部喷嘴内的脉冲或不稳定流体流。 该次级流体流动在喷射器或护罩的壁内。 次级和初级流体流动在喷射器护罩部分内相交,其中次流体流被主流体流动夹带。 初级和次级流体混合的喷射器护罩部分的几何形状允许初级喷射器脉冲的开始与通过喷射器的上游移动的声波同步,该喷射器由从喷射器护罩的先前脉冲的离开开始。 喷射器的几何特性由脉冲初级流体流的声学特性,频率,占空比和幅度决定。 此外,可以改变初级流体流的频率,占空比和幅度,以改变喷射器的效率。