Multi-cylinder pump for heavy flowable materials

Details Multi-cylinder pump for heavy flowable materials Multi-cylinder pump for heavy flowable materials

1990-02-06

1990-12-25

Fox, John C.

Pumps

Expansible chamber type

Plural pumping chambers

137874, 251175, F04B 1500

Patent

active

049798847

ABSTRACT:
A two-cylinder pump for heavy flowable material comprising a pump body with a deck surface, a pair of cylinder bores opening at the deck surface, and a piston reciprocating in each cylinder bore in charging and discharging strokes. The pump further includes a valve conduit with an inlet port for the transfer of flowable material between the valve conduit and the cylinder bores, the valve conduit being pivotable about an axis to cause a movement of the inlet port across the deck surface between two operative positions, in each operative position the inlet port being in register with either one of the cylinder bores. A fluid operated piston-cylinder assembly is operatively mounted between the valve conduit and the pump body in order to produce a force with a direction generally coincident with the pivotal axis on the valve conduit for urging the inlet port thereof in sealing engagement with the deck surface of the pump body.

REFERENCES:
patent: 4133418 (1979-01-01), Van Bilderbeck
patent: 4198193 (1980-04-01), Westerland
patent: 4613290 (1986-09-01), Everson
patent: 4614483 (1986-09-01), Hudelmaier
patent: 4653990 (1987-03-01), Schlecht

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