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:
Jul. 02, 2013
Filed:
Oct. 04, 2011
Applicants:
Shinsuke Sato, Tokyo, JP;
Shigeto Hirai, Tokyo, JP;
Tatsuo Ishiguro, Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a wind turbine generating apparatus, a heat generating device is provided inside the rotor head and has a hermetically-sealed structure from outside. A rotor head cooling air passage is formed through the periphery of the heat generating device to the inside of a wind turbine blade. A cooling air introduction portion through which cooling air flows and an air outlet from which the cooling air is discharged are provided in the rotor head cooling air passage to thereby form the air outlet in the wind turbine blade.