Wind generator

Rotary kinetic fluid motors or pumps – With means for controlling casing or flow guiding means in... – Natural fluid current force responsive

Reexamination Certificate

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Details

C415S017000, C415S124100, C415S908000, C416S1700HM

Reexamination Certificate

active

07083378

ABSTRACT:
The present invention relates to a wind generator. The wind generator comprises a body installed freely rotatably at a tower, blades installed at a leading end of the body, a gearbox for receiving rotational forces from the blades, and a generator connected to the gearbox for generating electricity. The blades are coupled with a blade angle adjustment unit so that the angles of the blades can be adjusted at predetermined angles according to the directions and velocities of winds. The gearbox comprises a planet gear coupled with a rotational shaft of the blades, a ring gear which has teeth formed on a radially inner surface thereof and engages with the planet gears, and a sun gear which engages with the planet gear and is connected with the generator. Teeth are formed on a radially outer surface of the ring gear so that teeth of a stop gear can be engaged therewith. The wind generator further comprises an electronic brake for controlling the stop gear in such a manner that it stops the rotation of the stop gear and thus causes the ring gear to become stationary.

REFERENCES:
patent: 2106557 (1938-01-01), Putnam
patent: 4239977 (1980-12-01), Strutman
patent: 4366386 (1982-12-01), Hanson
patent: 4613760 (1986-09-01), Law
patent: 5140170 (1992-08-01), Henderson
patent: 5476293 (1995-12-01), Yang
patent: 6720670 (2004-04-01), Makino et al.
patent: 6911743 (2005-06-01), Ishizaki

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