Rotary kinetic fluid motors or pumps – With control means responsive to non-cyclic condition... – Responsive to moving member developed fluid force – current...
Patent
1982-03-29
1985-03-05
Scott, Samuel
Rotary kinetic fluid motors or pumps
With control means responsive to non-cyclic condition...
Responsive to moving member developed fluid force, current...
415 17, 415 44, 415 49, 415116, 261 27, 417503, F04B 1700
Patent
active
045028346
ABSTRACT:
A first control assembly is provided operative to supply gas from a supply of gas under pressure to the inlet of a centrifugal liquid pump at increasing and decreasing rates responsive to decreases and increases in the pressure of liquid discharge from the pump. The first control assembly includes spring structure for closing an associated air flow controlling valve member which is yieldingly biased toward the open position by the pressure of liquid discharged from the pump and a second control assembly is provided operative to increase and decrease the loading of the aforementioned spring structure responsive to increases and decreases in demand for liquid being discharged from the pump.
REFERENCES:
patent: 2779290 (1957-01-01), Wiegers
patent: 3508575 (1970-04-01), Robinson
patent: 3726300 (1973-04-01), Chevalier
patent: 3958723 (1976-05-01), St/a/ hle
patent: 4134711 (1979-01-01), Ivans et al.
patent: 4165740 (1979-08-01), Kurichev et al.
patent: 4290979 (1981-09-01), Sugiura
Bowman Brian J.
Felsman Robert A.
Scott Samuel
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