Wind turbine gear unit with integrated rotor bearing
US7255537B2 · kind B2 · utility
8Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2003 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Feb 3, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a gear unit for use in wind turbines and of the kind with a planetary gear stage, and an integrated main rotor bearing that is adapted to provide location for the rotor hub relative to the wind turbine nacelle and to locate the planet carrier relative to a low speed ring gear, the forces due to bending moments acting between the rotor hub and nacelle are transmitted substantially directly from the rotor hub to the nacelle via the main bearing and substantially none of the bending moments are transmitted to the nacelle via the ring gear of the planetary gear stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.