| 摘要 |
PCT No. PCT/CH85/00090 Sec. 371 Date Nov. 28, 1986 Sec. 102(e) Date Nov. 28, 1986 PCT Filed Jun. 3, 1985 PCT Pub. No. WO86/04648 PCT Pub. Date Aug. 14, 1986.A device for producing a directed fluid flow utilizing an elongate paddle member having first and second wing portions formed along a common longitudinal axis. The wing portions are orthogonally disposed relative to one another. Pivots are constructed in each of the wing portions, which pivots extend substantially perpendicular to each wing portion and are disposed orthogonally relative to each other. First and second rotatably driven shafts are disposed in generally parallel spaced relationship and are coupled to the pivots by a hinge and swivel arm connected to each shaft at one end and to the pivot at the other end. The rotatably driven shafts then define a notional plane and the rotation of the shafts causes rotation of the paddle member for generating directed fluid flow generally perpendicular to the notional plane.
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