Wind turbine yaw bearing pre-load
US9951818B2 · kind B2 · utility
2Cited by
14References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | May 31, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A wind turbine yaw assembly has a yaw piston and a yaw bearing pad. A spring resides inside the yaw piston and applies spring pressure to the yaw bearing pad. A threaded yaw piston bushing applies adjustable pressure to the spring. The threaded yaw bushing has a plurality of at least three force adjustment screws distributed symmetrically about the threaded yaw piston bushing. The spring pressure is adjusted by tightening or loosening the plurality of force adjustment screws. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.