Overrun protection for wind turbines
US9790922B2 · kind B2 · utility
0Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2014 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Jan 1, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A braking system for a turbine of a wind powered includes a hydraulic machine connected to a drive shaft of the turbine. A pressure regulating valve in the supply line of the hydraulic machine determines the pressure delivered to the supply line by the hydraulic machine. A control that is responsive to the speed of rotation of the drive shaft modulates the pressure regulating valve so as to increase pressure in the supply line as the rotational speed exceeds a predetermined speed to apply a braking force to the drive shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.