Low pulsation pump device

Details Low pulsation pump device Low pulsation pump device

1987-10-22

1989-03-07

Freeh, William L.

Pumps

Condition responsive control of pump drive motor

Plural pumps having separate drive motors, supply sources,...

417265, 210101, F04B 4906, F04B 300, F04B 4900

Patent

active

048101680

ABSTRACT:
A low pulsation pump device has a pulse motor, two plungers adapted to be driven by the pulse motor, a pressure sensor disposed on the output side of the plungers, a storage for storing values of pressures detected by the pressure sensor during each of a number of periods, a high speed region during which the rotational speed of the pulse motor is increased. The pulse control has an optimization function which determines, on the basis of pressure information which was obtained during the last period, the location of a high speed region in each period in such a manner as to reduce pulsations.

REFERENCES:
patent: 4352636 (1982-10-01), Patterson
patent: 4448692 (1984-05-01), Nakamoto
patent: 4552513 (1985-11-01), Miller
patent: 4595495 (1986-06-01), Yotam
patent: 4600365 (1986-07-01), Riggenmann
patent: 4681513 (1987-07-01), Saito

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