Underground drainage facility, vertical-shaft multi-stage adjust

Details Underground drainage facility, vertical-shaft multi-stage adjust Underground drainage facility, vertical-shaft multi-stage adjust

1994-11-01

1997-04-29

Kwon, John T.

Rotary kinetic fluid motors or pumps

Runner or blade selectively adjustable relative to casing

415130, F01D 502

Patent

active

056242263

ABSTRACT:
A vertical-shaft multi-stage pump has adjustable vanes on its lower stage. A vane angle operating mechanism has an operating shaft extending through a hollow portion of the drive shaft of the upper stage and a link mechanism connected to the operating shaft and the adjustable vane impeller for converting axial motion of the operating shaft into vane angle rotational motion. The pump is particularly suited for use in an underground drainage system.

REFERENCES:
patent: 1972780 (1934-09-01), Laskowitz
patent: 2324650 (1943-07-01), Stepanoff
patent: 3626823 (1971-12-01), Toth
patent: 3919848 (1975-11-01), Sullivan
patent: 4457646 (1984-07-01), Laesch
patent: 4890955 (1990-01-01), Mercier
patent: 4997312 (1991-03-01), Regan

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