The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 21, 2007

Filed:

Dec. 21, 2005
Applicants:

Hisao Miyake, Nagasaki-ken, JP;

Masaaki Shibata, Nagasaki-ken, JP;

Yasuyoshi Tozaki, Nagasaki-ken, JP;

Katsuhiko Shoda, Nagasaki-ken, JP;

Inventors:

Hisao Miyake, Nagasaki-ken, JP;

Masaaki Shibata, Nagasaki-ken, JP;

Yasuyoshi Tozaki, Nagasaki-ken, JP;

Katsuhiko Shoda, Nagasaki-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03D 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A wind turbine generator including a nacelle having reduced size and weight is provided. The wind turbine generator includes a nacelle disposed on a tower. The nacelle includes a main shaft that is connected to a rotor head equipped with blades and that integrally rotates with the rotor head, a gearbox that increases the rotational speed of the main shaft and that outputs the resulting rotational speed, and a generator driven by the output from the gearbox. In the wind turbine generator, a drivetrain extending from the main shaft to the generator via the gearbox is disposed in the rotor head.


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