Precision fluid pump

Details Precision fluid pump Precision fluid pump

1990-01-03

1991-07-16

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

417385, 91402, 92 86, 92162R, F04B 908, F04B 3502

Patent

active

050320637

ABSTRACT:
Hydraulic fluid is replenished in a pulsator chamber of a fluid driven pulsator pump by having the power plunger in an upstanding bore with spaced seals. The power plunger is withdrawn upon each stroke vertically upward. As it is withdrawn past seals, any gas within the pulsator chamber may be purged or bled into an annular space and there out into a reservoir and scrubbing chamber. Additional hydraulic fluid will flow into the pulsator chamber. Upon the down stroke of the plunger an exact amount of volume will be displaced within the pulsator chamber. Adjustment of the product pumped on each stroke is by sacrificing a measured amount of the pulsator liquid into a sacrifice chamber. The amount of liquid which flows into the sacrifice chamber upon each down stroke and out of the chamber on each upstroke is adjusted by adjusting the movement of a floating piston by a micrometer rod.

REFERENCES:
patent: 2578746 (1951-12-01), Saterger
patent: 2827853 (1958-03-01), Bradley
patent: 2869467 (1959-01-01), Limpert
patent: 3000320 (1961-09-01), Ring
patent: 3030892 (1962-04-01), Piccardo
patent: 3134508 (1964-05-01), Bayer et al.
patent: 3168045 (1965-02-01), Sebastiani
patent: 3257952 (1966-06-01), McCormick
patent: 4068982 (1978-01-01), Quarue

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