Rotary positionable installation

Fluid reaction surfaces (i.e. – impellers) – With means positioning fluid current driven impeller... – Offset relative to flow direction

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Details

416 19, 416140, 416DIG6, F03D 1104

Patent

active

046920943

ABSTRACT:
The invention shows a rotary positionable installation, such as a wind power, having a tower (11), and an apparatus carrier supported on the tower so as to be rotatable about its axis and rotary positionable by means of an azimuth drive unit, particularly a housing (2), including a frequency adjusting unit (18, 19 27; 40, 42, 46; 66, 74) for the natural yawing frequency of the swinging system of the following components: apparatus carrier (2), azimuth drive unit and tower (1) by adjusting the torsion (rotation) spring constant by means of one of the components and/or the connection between at least two of the components of the swinging system. In this manner, the adjustment of the natural yawing frequency is made possible in a simple manner in respect to construction as well as operation.

REFERENCES:
patent: 1707235 (1929-04-01), Sargent
patent: 1767303 (1930-06-01), Miller
patent: 2484291 (1949-10-01), Hays
patent: 2784556 (1957-03-01), Perdue
patent: 4298313 (1981-11-01), Hoffenemser
patent: 4378198 (1983-03-01), Pettersson
patent: 4408954 (1983-10-01), Earle
patent: 4522561 (1985-06-01), Carter et al.

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