Pulsation-free volumetric pump

Details Pulsation-free volumetric pump Pulsation-free volumetric pump

1984-06-12

1986-01-28

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Single motor control element responsive to means sensing...

417 45, F04B 4906, F04B 4908

Patent

active

045668582

ABSTRACT:
An improved pulsation-free reciprocating volumetric pump is disclosed, which comprises two reciprocating plungers, a cam for driving said plungers, a driving motor connected to said cam, a circuit connected to said driving motor for controlling rotational rate, and another circuit for detecting a pressure of combined volume discharged by the two plungers and for correcting a control signal of said rotation controlling circuit through the detected signal.

REFERENCES:
patent: 3847507 (1974-11-01), Sakiyama
patent: 3882861 (1975-05-01), Kettering et al.
patent: 3976400 (1976-08-01), Major
patent: 4155683 (1979-05-01), Mochizuki

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