Method and device for dosing pumping

Details Method and device for dosing pumping Method and device for dosing pumping

1992-08-21

1994-04-19

Gluck, Richard E.

Pumps

Processes

417517, 417532, F04B 1300

Patent

active

053040414

ABSTRACT:
A method of pumping a product by means of a dosing pump unit entails that two individually driven pump chambers, which are connected with a common outlet, are controlled in such a way that the suction phases of the pump chambers overlap each other so that the total inflow to the pump unit is maintained constant. A pump unit includes two pump chambers which have a common inlet and outlet. Communication between the pump chambers and the inlet and outlet is controlled by a valve body, having an inlet passage that is formed such that it can be oriented to connect both pump chambers with the inlet.

REFERENCES:
patent: 4142846 (1979-03-01), Yoshikawa
patent: 4358257 (1982-11-01), Seiler et al.
patent: 4533300 (1985-08-01), Westerlund et al.
patent: 5024584 (1991-06-01), Bordini et al.
patent: 5090299 (1992-02-01), Santi et al.
English-language translation of Swiss document 617 752 to Blatter.

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