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Title:
SAIL DEVICE WITH ROTOR
Document Type and Number:
Japanese Patent JPS60124591
Kind Code:
A
Abstract:

PURPOSE: To obtain effective generation of high lift by means of a simple structure by providing a post and a beam in the vicinity of a rotor sail set to a mast so as to increase the velocity of wind flowing to the set sail.

CONSTITUTION: When a boat body receives wind W, a sail 14 is turned to such a position as to generate a lift L according to the direction of the wind W and fixed there. When a motor 16 is actuated to rotate a rotor sail 19 in the direction r through a gear 17 and a post 18, the velocity of a flow W1 branched from the wind W is increased by the rotation of the rotor sail 19 in the direction r. Therefore, the lift L becomes higher due to the increased velocity of the wind W. When the direction of the wind W has changed, the position of the sail 14 is changed according thereto, and the rotating speed of a rotor sail 19 is adjusted or the rotating direction thereof is changed to get a desired lift.


Inventors:
MATSUZAWA MASAO
Application Number:
JP1983000229874
Publication Date:
July 03, 1985
Filing Date:
December 07, 1983
Export Citation:
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Assignee:
NIPPON KOKAN KK
International Classes:
B63H9/02; B63H9/06; (IPC1-7): B63H9/02; B63H9/06



 
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