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Title:
VORTEX RING DEVICE
Document Type and Number:
Japanese Patent JP3774760
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To realize a vortex ring device suitable for generating and accelerating a fluid current by inducing flow of the fluid, with respect to the vortex ring device for inducing the flow of the fluid such as air and water.
SOLUTION: This vortex ring device is provided with a column or a cylinder made of a soft material capable of being easily compressed and strained, and formed into the ring shape 4, and can be continuously rotated around a center of the column or the cylinder by the application of rotating driving force in the direction of an arrow a1. A constitution wherein the vortex rings 4 are mounted in plural stages, and each vortex ring 4 can be independently rotated and driven in the direction of the arrow a1, is also available.


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Inventors:
Nagai, Minoru
Application Number:
JP2001000125003
Publication Date:
May 17, 2006
Filing Date:
April 23, 2001
Export Citation:
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Assignee:
Univ, The Ryukyus OF.
International Classes:
F03D1/04; F04D23/00; F04D11/00; F15D1/12; (IPC1-7): F03D1/04
Domestic Patent References:
JP8166207A
JP2207194A
Foreign References:
US4829929