Pumping apparatus for fluids containing abrasive particulates

Rotary kinetic fluid motors or pumps – With lubricating – sealing – packing or bearing means having... – For shaft sealing – packing – lubricating or bearing means

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Details

415121R, 210399, F04D 2906

Patent

active

042498600

ABSTRACT:
A pump is provided which is specifically designed for the pumping of abrasive particulates, such as a pump employed in the bottom of an oil well. Within a cylindrical housing, one or more pumping stages are provided to pressurize the particulate containing fluid to move the fluid axially through the housing and into a centrifugal type particulate separator mounted on the same shaft as that which drives the pumping stages. The separator effects the division of the fluid into two radially adjacent, axially moving fluid streams with the inner stream being relatively free of particulates and the outer stream containing most of the particulates. A second pump operated by the common pump shaft is employed to increase the pressure of the clean fluid stream above that of the pressurized particulate containing stream and conduit means are then provided for supplying portions of the pressurized clean fluid to each of the bearings and seals contained in the pumping stages and to labyrinth type seals employed in a thrust dummy on the shaft which offsets the thrust reaction forces of the pumping stages.

REFERENCES:
patent: 1098150 (1914-05-01), Haver
patent: 1348980 (1920-08-01), Chapman et al.
patent: 1570285 (1926-01-01), Schleyer
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patent: 1999163 (1935-04-01), Allen
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patent: 2161862 (1939-06-01), Hait
patent: 3487432 (1969-12-01), Jensen
patent: 3494291 (1970-02-01), Carter, Jr.
patent: 3850550 (1974-11-01), Kaessen

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