Wind turbines, improved gear box assemblies, and a braking system adaptable for use with such wind turbines and improved gear box assembly
A braking system is described for a vertical axis wind turbine, having a rotor having a centrally disposed axis or rotor shaft oriented in the vertical direction, a support for supporting the rotor and permitting the rotor to be elevated, a housing and shaft, for supporting the rotor for rotation, the housing and shaft secured together presenting a space therebetween, means for sealing the space between the housing and shaft, brake pads and a braking surface carried by the vertical axis wind turbine. The space between the housing and shaft when the shaft is received in the housing for receiving hydraulic fluid injected therein under pressure to raise the rotor for rotation, and hydraulic circuitry to feed hydraulic fluid into, and drain fluid from, the space, whereby when the hydraulic fluid is drained from the space, the rotor is lowered causing the brake pads to engage the braking surface to stop the motion of the rotor.
- Assignee:
- Indal Technologies Inc., Mississauga
- Patent Number(s):
- US 4659284
- OSTI ID:
- 6558858
- Resource Relation:
- Patent File Date: Filed date 3 Apr 1984
- Country of Publication:
- United States
- Language:
- English
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