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11. 发明授权

US06250585B1 Impellers with bladelike elements and compliant tuned transmission shafts and vehicles including same 有权
标题翻译：具有扁平元件和兼容调谐传动轴和包括其的车辆的叶轮
公开(公告)号：US06250585B1
公开(公告)日：2001-06-26
申请号：US09148370
申请日：1998-09-04
申请人： Charles A. Pell
发明人： Charles A. Pell
IPC分类号： B64C3300
CPC分类号： B64C33/00
摘要： A vehicle with improved maneuverability includes: a vehicle body; a first bladelike element; a first tuned compliant transmission shaft attached to the bladelike element; and a reciprocating unit for reciprocally driving the bladelike element within a fluid medium in a first travel path such that interaction between the bladelike element and a fluid medium produces propulsive forces that propel the vehicle body in a desired direction. Preferably, the pitch and heave natural frequencies of the natural transmission shaft are approximately equal to each other and to the natural bending frequency and torsional frequency of the bladelike element, and the natural thrust frequency of the transmission shaft is often approximately twice that of the pitch frequency. In this configuration, the vehicle can be directed in virtually any direction, the directing force is be generated far more quickly than is the case for prior art vehicles, and energy typically lost as shaking or vibration instead provides thrust.
摘要翻译：具有改善机动性的车辆包括：车身; 第一个bladelike元素; 连接到所述扁平元件的第一调谐顺应传动轴; 以及往复运动单元，用于在第一行进路径内的流体介质内往复驱动所述流体元件，使得所述弹性元件和流体介质之间的相互作用产生推进所述车体沿期望方向的推进力。优选地，天然传动轴的俯仰和起伏固有频率彼此近似相等，并且与弹性元件的天然弯曲频率和扭转频率近似相等，并且传动轴的自然推力频率通常大约是桨距的两倍频率。在这种构造中，车辆可以被实际上指向任何方向，与现有技术的车辆相比，导向力的产生要快得多，而典型地，随着振动或振动而损失的能量代替提供推力。

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