Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – By actuator eccentric to rotation axis
Patent
1980-07-02
1983-04-19
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Sustained ancillary movement of rotary working member
By actuator eccentric to rotation axis
416111, F03D 706
Patent
active
043804179
ABSTRACT:
An installation for extracting useful work, such as driving an electric generator from a fluid stream, includes a platform rotatable about a central axis and supporting a plurality of blades or vanes, each of which is rotatable about its individual blade axis to vary the angle of attack between the blades and the fluid stream during each revolution of the platform. The blades are coupled together so that each blade executes a similar motion during each platform revolution and so that the angle of attack of the fluid stream relative to a given blade is substantially zero when the fluid stream direction is perpendicular to the plane including the central platform axis and the axis of the given blade, the amount of variation in blade angle of attack during each revolution is variable to compensate for variations in the fluid flow.
REFERENCES:
patent: 2003 (1841-03-01), Van Osdel
patent: 441461 (1890-11-01), Avet
patent: 1618549 (1927-02-01), O'Toole
patent: 1636423 (1927-07-01), Langenbach
patent: 1964347 (1934-06-01), Ford
patent: 2291062 (1942-07-01), Schneider
patent: 3241618 (1966-03-01), Baer
patent: 3382931 (1968-05-01), DeJussieu-Pontcarrel et al.
Hoffman John F.
J. M. Voith GmbH
Jeffers Albert L.
Powell Jr. Everette A.
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