Charge control valve and piston assembly for diaphragm pump

Details Charge control valve and piston assembly for diaphragm pump Charge control valve and piston assembly for diaphragm pump

1976-12-20

1978-01-17

Croyle, Carlton R.

Pumps

Motor driven

Fluid motor

60592, F04B 910, F04B 3502

Patent

active

040689824

ABSTRACT:
An apparatus for reciprocating a piston in a diaphragm pump wherein the piston alternately pressurizes and relieves an oil filled chamber having a diaphragm separating the chamber from a liquid pumping chamber, the invention comprising a bearing shoe interposed between the piston and driving crank shaft, wherein the shoe has oil ports for lubricating and for relieving excess fluid volume from the oil chamber during each piston stroke.

REFERENCES:
patent: 3106164 (1963-10-01), McCormick
patent: 3153381 (1964-10-01), Holley
patent: 3496875 (1970-02-01), Van Allen et al.
patent: 3977192 (1976-08-01), Smirnov et al.

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