Multistage hydraulic machine

Details Multistage hydraulic machine Multistage hydraulic machine

1982-09-10

1985-03-05

Scott, Samuel

Rotary kinetic fluid motors or pumps

With shaft connected fluid force subjected thrust balancing...

415113, 415500, 415 1, 415112, F03B 310

Patent

active

045028354

ABSTRACT:
A multistage hydraulic machine which includes a housing, a main shaft mounted in the housing, a high-pressure stage and low-pressure stage runner firmly secured to the main shaft wherein the housing has formed therein a plurality of runner chambers enclosing each of the runners, respectively, of the high-pressure and the low-pressure stage, a return passage communicating with the runner chambers of the high-pressure and low-pressure stages, a high-pressure stage, outer back chamber, a high-pressure stage, inner back chamber and a high-pressure stage, side chamber all of which are located within the runner chamber enclosing the high-pressure stage runner, a low-pressure stage, side pressure chamber located within the runner chamber enclosing the low-pressure stage runner, a mechanism for communicating the high-pressure stage, inner back chamber with the return passage, and a mechanism for respectively communicating the low-pressure stage, side pressure chamber with the return passage.

REFERENCES:
patent: 1499056 (1924-06-01), Hollander
patent: 3370828 (1968-02-01), Willi
patent: 3746461 (1973-07-01), Yokata et al.
patent: 3895689 (1975-07-01), Swearingen
patent: 3985464 (1976-10-01), Hachiya et al.
patent: 4158525 (1979-06-01), Kawase et al.
patent: 4170435 (1979-10-01), Swearingen
patent: 4207023 (1980-06-01), Tsunoda
patent: 4295781 (1981-10-01), Ogiwara et al.

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