Wind power generation device

Details Wind power generation device Wind power generation device

2008-04-08

2008-04-08

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Natural fluid current motor

Axial flow runner

C415S004300

Reexamination Certificate

active

07354245

ABSTRACT:
A wind power generation device capable of improving power generation efficiency is provided. The wind power generation device according to the present invention comprises: a substantially cylindrical duct1having a side wall with a substantially wing section; an impeller2rotatable around an axis of the duct1;and a nacelle5that constitutes a streamlined pencil body3together with the impeller2and houses a generator4that uses torque of the impeller2. The duct1has the side wall with the wing section so as to be able to produce a reduced pressure area at a rear of the duct and prevent generation of swirl at the rear of the duct1. The pencil body3is provided so that a tip thereof is placed in the duct1and a rear end thereof protrudes from a rear end of the duct1so as to be close to a tip of the reduced pressure area produced at the rear of the duct1. Blades21of the impeller2are provided in a maximum wind speed area13in the duct1.

REFERENCES:
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patent: 4140433 (1979-02-01), Eckel
patent: 0 045 202 (1982-02-01), None
patent: 0 045 264 (1982-02-01), None
patent: 975 625 (1951-03-01), None
patent: 56-74871 (1981-06-01), None
patent: 2003-28043 (2003-01-01), None

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