Wind turbine

Details Wind turbine Wind turbine

1981-03-13

1982-01-19

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Working member foldable, pivotable or collapsible to non-use...

416 9, F03D 1104

Patent

active

043114342

ABSTRACT:
The improvement in a wind turbine comprises providing a tower with a freely liftable mount and adapting a nacelle which is fitted with a propeller windwheel consisting of a plurality of rotor blades and provided therein with means for conversion of wind energy to be shifted onto said mount attached to the tower. In case of a violent wind storm, the nacelle can be lowered down to the ground to protect the rotor blades from breakage due to the force of the wind. Required maintenance and inspection of the nacelle and replacement of rotor blades can be safely carried out on the ground.

REFERENCES:
patent: 546710 (1895-09-01), Rogers
patent: 756216 (1904-04-01), Crunican
patent: 756616 (1904-04-01), Fornander
patent: 992067 (1911-05-01), Sawyers
patent: 4142830 (1979-03-01), Schonball
patent: 4217738 (1980-08-01), Smith

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