Fluid reaction surfaces (i.e. – impellers) – Having positive means for impeller adjustment – Shiftable carrier support
Patent
1996-08-15
1998-06-09
Verdier, Christopher
Fluid reaction surfaces (i.e., impellers)
Having positive means for impeller adjustment
Shiftable carrier support
416157R, 416157B, 416161, 416166, B63H 304, F01D 700, F03B 314
Patent
active
057624747
ABSTRACT:
A propeller unit, each blade (1) being fixed to a blade foot (2) rendered integral with a hub (3) rotating around an axis but mobile with respect to the hub on translation in the direction of the axis and rotating around a second axis orthogonal to the first axis, this foot (2) being moreover rendered integral with an arch (5) in translation but free with respect to the arch on rotation; a pitch modifier is linked to the arch to translate the arch along the spin axis of the hub (3); the hub (3) and each blade foot (2) have members (8, 23) for activating the feet in rotation provoking from translation of the arch (5) the rotation of the blade feet around an axis mobile on translation in the same direction and orthogonal to the blade feet.
REFERENCES:
patent: 0612598 (1898-10-01), Wanless
patent: 1606029 (1926-11-01), Herr
patent: 3288228 (1966-11-01), Irgens
patent: 3331446 (1967-07-01), Feroy
patent: 4090812 (1978-05-01), Moran
patent: 4474533 (1984-10-01), Hino
patent: 5090869 (1992-02-01), Wright
Drucker William A.
Verdier Christopher
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