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.
Patent No.:
Date of Patent:
Nov. 13, 2018
Filed:
Jul. 31, 2014
Applicant:
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 1/06 (2006.01); F03D 15/10 (2016.01); F03D 80/80 (2016.01); F03D 15/00 (2016.01); F03D 9/25 (2016.01); F03D 80/70 (2016.01);
U.S. Cl.
CPC ...
F03D 1/065 (2013.01); F03D 1/06 (2013.01); F03D 9/25 (2016.05); F03D 15/00 (2016.05); F03D 15/10 (2016.05); F03D 80/88 (2016.05); F03D 80/70 (2016.05); F05B 2260/40 (2013.01); Y02E 10/721 (2013.01); Y02E 10/726 (2013.01);
Abstract
A wind power generation system according to the invention includes: blades configured to receive wind to rotate; a nacelle supporting a load from the blades; a tower supporting the nacelle; a hub supporting the blades and configured to be rotated with the blades; a rotary main shaft configured to be rotated with the rotation of the hub; a gearbox connected to the rotary main shaft and configured to increase a speed of the rotation; and a generator configured to be driven at the rotation speed increased by the gearbox. The rotary main shaft is connected directly to the hub.