Fluid reaction surfaces (i.e. – impellers) – Having positive means for impeller adjustment – Power or manual actuator on non-rotatable part
Patent
1983-08-31
1985-06-04
Powell, Jr., Everette A.
Fluid reaction surfaces (i.e., impellers)
Having positive means for impeller adjustment
Power or manual actuator on non-rotatable part
416163, 415129, F03B 314
Patent
active
045211582
ABSTRACT:
A fluid-flow machine, particularly of the hydraulic propeller-pump type, comprises a central hub, a bearing support fixed to the hub for rotation therewith, a plurality of blades distributed symmetrically around the hub, each blade having a pivotable blade-root for adjusting the angle of attack of the blades. The blade-roots are mounted on the bearing support for rotation around the longitudinal axis of the hub. An adjusting device pivots the blades about the longitudinal axis of the blade-roots, the latter including, for each blade, a self-locking reduction gear and a drive shaft. The bearing support is formed with open-ended housings, each corresponding to one of the blade-roots. The drive shafts, the reduction-gears and the blade-roots are mounted, at least partially, within the housings aforesaid.
REFERENCES:
patent: 2460559 (1949-02-01), Wildhaber
patent: 2487836 (1949-11-01), Turnbull
patent: 3098184 (1963-07-01), Deriaz
patent: 3536415 (1970-10-01), Kusiak
patent: 3901626 (1975-08-01), McMurtry
patent: 3902822 (1975-09-01), Andrews et al.
patent: 3964839 (1976-06-01), Kusiak
patent: 4099427 (1978-07-01), Fickelscher
Fickelscher, Elektrizitaetswirtschaft, vol. 79, No. 18, pp. 668-669 (1980).
Balcke-Duerr, Verstelleinrichtung fuer Grosse Schaufelkraeft, (1982) Brochure.
Balcke-Duerr AG
Powell Jr. Everette A.
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