Wind turbine with damper

Details Wind turbine with damper Wind turbine with damper

1986-02-04

1987-06-23

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With means positioning fluid current driven impeller...

Offset relative to flow direction

416 16, F03D 704

Patent

active

046749543

ABSTRACT:
A double-acting hydraulic cylinder is pivotally mounted between the head and tail assemblies of a wind turbine, to act as a damper. The cylinder is connected with a hydraulic fluid reservoir container. Means, such as restrictive orifices, are provided to control the rates of flow in the fluid lines between the cylinder and the reservoir, so that the rate of pivoting of the head assembly when furling is relatively fast and relatively slow when unfurling.

REFERENCES:
patent: 464607 (1891-12-01), Brown
patent: 1816632 (1931-07-01), Bucklen
patent: 1818672 (1931-08-01), Bucklen
patent: 1948457 (1934-02-01), Larsen
patent: 2755871 (1956-07-01), Gerstenberger
patent: 3667861 (1972-06-01), Paristt
patent: 4297075 (1981-10-01), Jacobs et al.
patent: 4298313 (1981-11-01), Hohenemser
patent: 4372732 (1983-02-01), Browning
patent: 4417853 (1983-11-01), Cook
patent: 4439105 (1984-03-01), Hohenemser
patent: 4515525 (1985-05-01), Doman
patent: 4518312 (1985-05-01), Jacobs et al.

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