Reciprocating pump

Details Reciprocating pump Reciprocating pump

1977-07-01

1979-11-13

Croyle, Carlton R.

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

417571, F04B 2102

Patent

active

041741943

ABSTRACT:
A reciprocating pump wherein the plunger is surrounded by a sleeve which has limited freedom of axial movement in the pump body and has a conical end portion adjacent to the lightweight washer-like or hollow frustoconical valving element of a suction valve. When the plunger performs a suction stroke, pressure in the sleeve drops below the pressure at the inlet of the pump body whereby the suction valve opens and allows fluid to flow into the sleeve. The plunger thereupon performs a forward stroke to pressurize the fluid in the sleeve, whereby the suction valve closes, and to expel pressurized fluid through the central opening of the valving element and through a delivery valve which admits pressurized fluid into a plenum chamber.

REFERENCES:
patent: 2831625 (1958-04-01), Hartwell et al.
patent: 3050237 (1962-08-01), Nicholas
patent: 3309014 (1967-03-01), Bauer et al.
patent: 3811801 (1974-05-01), Buse et al.

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