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:
Jun. 16, 2009
Filed:
Jul. 20, 2005
Kazuhiko Takaichi, Osaka, JP;
Junichi Hitachi, Osaka, JP;
Yukiyasu Mizuno, Osaka, JP;
Tooru Minamii, Amagasaki, JP;
Kazuhiko Takaichi, Osaka, JP;
Junichi Hitachi, Osaka, JP;
Yukiyasu Mizuno, Osaka, JP;
Tooru Minamii, Amagasaki, JP;
Abstract
Conventionally, a main shaft of the wind turbine apparatus has awkward such as heaviness or difficulties of assembling, since the length of the main shaft must be long to support a generator rotor. It is requested originally to light heaviness of a wind turbine apparatus, since it supports a wind wheel and a generator etc. on a tower at prescribed height. A hubsupported on the one side of the main shaft, a generator rotorsupported on the other side of the main shaft, the main shaft housingand the generator housingare combined, the generator rotorhaving a backward opening is fixedly provided on the rear end of the main shaft, the main shaftand the generator rotorare detachably fixed through the opening, and a rotational fitting (rod bearing) for a pitch control shaftis at least disposed at the rear space of the generator housing