| 摘要 |
<p>A pickup member (1) projects into the flowing medium (4) so as to extract therefrom flow movement energy. The pickup member (1) is formed as a profiled body which has, at desired section planes extending transversely to its longitudinal axis, a respective cross-section with continuously and smoothly extending curvature of the periphery and is mounted for oscillating pivotal motion about an axis (2-2') under the influence of the fluid flow. The pickup member (1) is in operative association with a device to be influenced. The operative association can be of a magnetic, capacitive piezoelectric or optical kind. The device may be utilised in an aircraft jet engine, to propel ships, or in a flow meter. <IMAGE></p> |
