Pitch Actuator For Wind Turbine Generator, And Wind Turbine Generator

Abstract: Provided are a pitch actuator for a wind turbine generator and a wind turbine generator that can be prevented from losing their reliability. Provided are a cylinder (12) and a rod (13) that rotate a wind turbine rotor blade about an axis thereof relative to a rotor head to change a pitch angle; a cylinder bearing (14, 15) supporting the cylinder (12) so as to be rotatable relative to the rotor head about a first rotation axis (L1) extending substantially parallel to the axis of the wind turbine rotor blade and about a second rotation axis (L2) extending in a direction crossing both the first rotation axis (L1) and the axis of the cylinder (12) and the rod (13); and a rod bearing (16) rotatably supporting an end of the rod (13) on an end surface of the wind turbine rotor blade.

Patent Information

Application #

Filing Date

20 April 2009

Publication Number

25/2009

Publication Type

INA

Invention Field

MECHANICAL ENGINEERING

Status

Email

Parent Application

Applicants

MITSUBISHI HEAVY INDUSTRIES LTD.

16-5 Konan 2-chome Minato-ku Tokyo 108-8215 Japan.

Inventors

1. Tomohiro NUMAJIRI

C/O NAGASAKI Shipyard & Machinery Works MITSUBISHI HEAVY INDUSTRIES LTD. 1-1 Akunoura-machi Nagasaki-shi Nagasaki 850-8610 Japan

2. Masahiro KAWAI

C/O NAGASAKI Shipyard & Machinery Works MITSUBISHI HEAVY INDUSTRIES LTD. 1-1 Akunoura-machi Nagasaki-shi Nagasaki 850-8610 Japan

3. Seita SEKI

C/O NAGASAKI Shipyard & Machinery Works MITSUBISHI HEAVY INDUSTRIES LTD. 1-1 Akunoura-machi Nagasaki-shi Nagasaki 850-8610 Japan

Specification

PLEASE SEE THE SPECIFICATION ATTACHED.

Documents

Application Documents

#	Name	Date
1	2562-DELNP-2009-Form-3-(07-09-2009).pdf	2009-09-07
1	2562-DELNP-2009.pdf	2018-12-04
2	2562-DELNP-2009_EXAMREPORT.pdf	2016-06-30
2	2562-DELNP-2009-Correspondence-Others-(07-09-2009).pdf	2009-09-07
3	2562-DELNP-2009-Correspondence-Others-(23-09-2011).pdf	2011-09-23
3	1435-DELNP-2005-Correspondence-Others-(07-09-2009).pdf	2009-09-07
4	Form-5.pdf	2011-08-21
4	2562-DELNP-2009-Form-3-(23-09-2011).pdf	2011-09-23
5	2562-DELNP-2009-Form-18.pdf	2011-08-21
5	Form-3.pdf	2011-08-21
6	Drawings.pdf	2011-08-21
6	Form-1.pdf	2011-08-21
7	Drawings.pdf	2011-08-21
7	Form-1.pdf	2011-08-21
8	2562-DELNP-2009-Form-18.pdf	2011-08-21
8	Form-3.pdf	2011-08-21
9	2562-DELNP-2009-Form-3-(23-09-2011).pdf	2011-09-23
9	Form-5.pdf	2011-08-21
10	2562-DELNP-2009-Correspondence-Others-(23-09-2011).pdf	2011-09-23
10	1435-DELNP-2005-Correspondence-Others-(07-09-2009).pdf	2009-09-07
11	2562-DELNP-2009_EXAMREPORT.pdf	2016-06-30
11	2562-DELNP-2009-Correspondence-Others-(07-09-2009).pdf	2009-09-07
12	2562-DELNP-2009.pdf	2018-12-04
12	2562-DELNP-2009-Form-3-(07-09-2009).pdf	2009-09-07