Plunger pump

Details Plunger pump Plunger pump

1988-04-26

1989-08-08

Koczo, Michael

Pumps

Including separate port on noncyclic valve for venting or...

417493, 417502, F04B 2100

Patent

active

048548359

ABSTRACT:
A plunger of a plunger pump is formed with an air vent passageway having its one end open to a compression chamber and the other end adapted to communicate with a reservoir space open to the atmosphere when the plunger comes near its top dead point. Air or gas trapped in the liquid sucked into the compression chamber will flow into the air vent passageway so as to be discharged into the reservoir space when the passageway gets into communication with it. Since air or gas is removed from the compression chamber, the pumping efficiency is prevented from decreasing.

REFERENCES:
patent: 1699194 (1929-01-01), Junkers

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