Wind Turbine Generator

Abstract: Provided is a wind turbine generator including an electric pitch-control device that efficiently utilizes the entire circumferential teeth of a ring gear (11) of a wind turbine blade so as to eliminate the need for work at high elevation using a crane or the like even when the teeth of the ring gear (11) are partly broken. A wind turbine generator having an electric pitch-control device that performs pitch-angle control by using a motor to drive a pinion gear (12) that meshes with a ring gear (11) of a wind turbine blade includes a plurality of pinion-driving-mechanism securing supporters (20) or a fixing/releasing switching part (30) as a meshing-region changing mechanism that changes a pitch-angle-control meshing region of the ring gear (11) that meshes with the pinion gear (12) during the pitch-angle control.

Patent Information

Application #

Filing Date

08 February 2011

Publication Number

36/2016

Publication Type

INA

Invention Field

NO SUBJECT

Status

Email

Parent Application

Applicants

MITSUBISHI HEAVY INDUSTRIES, LTD.

16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 108-8215, JAPAN

Inventors

1. MASAHIRO KAWAI

C/O MITSUBISHI HEAVY INDUSTRIES, LTD. 16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 108-8215, JAPAN

2. SEITA SEKI

C/O MITSUBISHI HEAVY INDUSTRIES, LTD. 16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 108-8215, JAPAN

3. YASUHIRO OBASE

C/O MITSUBISHI HEAVY INDUSTRIES, LTD. 16-5, KONAN 2-CHOME, MINATO-KU, TOKYO 108-8215, JAPAN

4. HAUKE KARSTENS

C/O MITSUBISHI POWER SYSTEM EUROPE, LTD. 20 NORTH AUDLEY STREET, LONDON W1K 6WL, UNITED KINGDOM

Specification

Documents

Application Documents

#	Name	Date
1	949-DELNP-2011-GPA-(11-02-2011).pdf	2011-02-11
2	949-DELNP-2011-Form-1-(11-02-2011).pdf	2011-02-11
3	949-DELNP-2011-Correspondence-Others-(11-02-2011).pdf	2011-02-11
4	949-DELNP-2011-Form-3-(14-06-2011).pdf	2011-06-14
5	949-DELNP-2011-Correspondence Others-(14-06-2011).pdf	2011-06-14
6	949-delnp-2011-form-5.pdf	2011-08-20
7	949-delnp-2011-form-3.pdf	2011-08-20
8	949-delnp-2011-form-2.pdf	2011-08-20
9	949-delnp-2011-form-18.pdf	2011-08-20
10	949-delnp-2011-Form-13.pdf	2011-08-20
11	949-delnp-2011-form-1.pdf	2011-08-20
12	949-delnp-2011-drawings.pdf	2011-08-20
13	949-delnp-2011-description (complete).pdf	2011-08-20
14	949-delnp-2011-correspondence-others.pdf	2011-08-20
15	949-delnp-2011-claims.pdf	2011-08-20
16	949-delnp-2011-abstract.pdf	2011-08-20
17	949-DELNP-2011-FER.pdf	2016-09-19
18	949-DELNP-2011-AbandonedLetter.pdf	2017-04-29