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    • 5. 发明申请
    • FIN FOR OSCILLATING FOIL PROPULSION SYSTEM
    • 用于振荡螺旋桨推进系统的FIN
    • WO2007019552A2
    • 2007-02-15
    • PCT/US2006/031075
    • 2006-08-07
    • HOBIE CAT COMPANYKETTERMAN, Gregory, S.CZARNOWSKI, James, T.
    • KETTERMAN, Gregory, S.CZARNOWSKI, James, T.
    • B63H1/00
    • B63H1/30B63H1/36B63H16/12
    • A watercraft having propulsion means extending below the water line comprising a pair of flexible fins each adapted to oscillate through an arcurate path in a generally transverse direction with respect to the central longitudinal dimension of said watercraft, and means operatively associated with said propulsion means for applying input force to said propulsion means whereby as input force is applied said flexible fins can twist to form an angle of attack for providing forward thrust with respect to the longitudinal dimension of the watercraft while moving in both directions along said arcurate path; the improvement wherein each of the fins preferably have a generally squared off top and an outer area of harder rubber than the inner area. Preferably, each of the fins is provided with means at the trailing edge to provide adjustable tensioning of the trailing edge, preferably by threaded means at the clew of the trailing edge.
    • 具有在水线下方延伸的具有推进装置的船舶包括一对柔性翅片,每个柔性翼片适于相对于所述船只的中心纵向尺寸沿大致横向的方向摆动通过一条弯曲的路径,以及可操作地与所述推进装置相关联的装置, 输入力到所述推进装置,由此当施加输入力时,所述柔性翼片可以扭转以形成迎角,以相对于船只的纵向尺寸提供正向推力,同时沿着所述弯曲路径在两个方向上移动; 改进之处在于,每个翅片优选地具有比内部区域大的平均顶部和较硬的橡胶的外部区域。 优选地,每个翅片在后缘处设置有装置,以提供后缘的可调节张紧,优选地通过在后缘的线圈处的螺纹装置。