Wind turbine gearbox lubrication system
US10233905B2 · kind B2 · utility
1Cited by
7References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2011 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A wind-turbine gearbox system includes an input gear stage having mating gear surfaces finished to a surface roughness of less than 0.25 micron and at least one bearing supporting the input gear stage. A lubrication circuit is arranged to deliver lubricant to the input gear stage and the bearing during operation of the wind-turbine and includes an inline filter for removal of particles of less than 2 micron from the lubricant prior to delivery. A lubricant for use in the system may have a relatively low viscosity compared to conventional wind turbine gearbox lubricants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.