Windmill blade stalling and speed control device
Patent
·
OSTI ID:6677158
The windmill stalling and speed control device is mounted in the blade supporting hub of a windmill and is operative in response to blade rotation induced by a blade pitch control unit. The device includes a biasing assembly mounted to oppose blade rotation in at least one direction and a stage adjustment unit which operates to aid the biasing unit and increase the opposition to blade rotation when the windmill hub and blades reach and remain within predetermined speed ranges.
- Assignee:
- EDB-83-015482
- Patent Number(s):
- US 4352633
- OSTI ID:
- 6677158
- Country of Publication:
- United States
- Language:
- English
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