Wind turbine for generating electric power
US8939258B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2008 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Jul 8, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a wind turbine for generating electric power by an air stream (1) onto a rotor (48) rotatable about a rotor axis (2), said rotor comprising a plurality of rotor blades (3, 4) and being coupled via a rotor shaft (5) to a generator (6), wherein a primary transmission (8) is present between the rotor shaft (5) and generator input shaft (7) for multiplication of the rotational speed, wherein the pressure-feed or force-feed lubricating system of said main transmission comprising a lubricating pump (9) enables the supply to components (46, 47) subject to wear, wherein the wind turbine (10) has an emergency pump (11) for lubricant supply, which during normal operation of the wind turbine is not operational and during spinning operation and/or a power failure can be connected and which is operated by the rotating rotor (48).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.