Metering pump

Details Metering pump Metering pump

1989-08-11

1991-02-05

Koczo, Michael

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

417413, F04B 2306

Patent

active

049900668

ABSTRACT:
A self-aspirating and self-venting metering pump comprises a pump chamber with a diaphragm valve for delivery to a metering point. In order to achieve a precise adjustment of the metering volume the diaphragm valve and the venting means are coupled to each other such that the venting means is open during a pressure stroke and closed during the suction stroke.

REFERENCES:
patent: 4453931 (1984-06-01), Pastrone
patent: 4599052 (1986-07-01), Langden et al.
patent: 4776771 (1988-10-01), Kern

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