Hydraulic machine

Details Hydraulic machine Hydraulic machine

1976-07-07

1978-04-25

Husar, C. J.

Rotary kinetic fluid motors or pumps

With shaft connected fluid force subjected thrust balancing...

Fluid force on opposite face of blade or blade support member

415500, F04D 2966

Patent

active

040860205

ABSTRACT:
A hydraulic machine comprising a runner of the Francis type having a crown ring with a plurality of first and second balance holes. The first balance holes are formed in the crown ring for communicating between a runner crown chamber defined between the crown ring and an upper cover disposed in spaced juxtaposed relation with the crown ring and low pressure sections defined by blades interposed between the crown ring and a shround ring. The second balance holes are formed in the crown ring for communicating between the runner crown chamber and the interior of a runner boss whereby the first and second balance hole means have reverse thrust characteristics with respect to each other.

REFERENCES:
patent: 958612 (1910-05-01), Eyermann
patent: 1102604 (1914-07-01), Paulsmeier
patent: 1180587 (1916-04-01), Ingram
patent: 1180602 (1916-04-01), Pfau
patent: 1473802 (1923-11-01), Woock et al.
patent: 1516822 (1924-11-01), McCormack
patent: 1634317 (1927-07-01), Benson
patent: 1820150 (1931-08-01), Moody
patent: 2658455 (1953-11-01), Seinfeld
patent: 3791761 (1974-02-01), Hayes
patent: 3890059 (1975-06-01), Takase

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