Fluid flow control means for pumps and the like

Details Fluid flow control means for pumps and the like Fluid flow control means for pumps and the like

1986-04-30

1988-01-26

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Plural runners having different type flow paths

415208, 415183, F04D 1312

Patent

active

047214350

ABSTRACT:
A fluid machine including a device disposed in the inlet passage of the fluid machine for retarding pump cavitational surging at low flow rates. The device includes an annulus assembly having a series of curved radially disposed vanes for capturing fluid backflowing from the pumping chamber and redirecting same toward the center of the inlet passageway.

REFERENCES:
patent: 1094836 (1914-04-01), De Laval
patent: 1504746 (1924-08-01), De Wein
patent: 1719090 (1929-07-01), Stillman
patent: 1966787 (1934-07-01), Buri
patent: 2311896 (1943-02-01), Criqui
patent: 3143103 (1964-08-01), Zuhn
patent: 3384022 (1968-05-01), Oshima
patent: 4111597 (1978-09-01), Grossi et al.
patent: 4375937 (1983-03-01), Cooper
patent: 4585391 (1986-04-01), Vuillet et al.

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