Progessive cavity pump

Details Progessive cavity pump Progessive cavity pump

1987-01-20

1989-04-04

Vrablik, John J.

Rotary expansible chamber devices

Unlike helical surfaces on relatively wobbling rotating...

418153, F04C 2107, F04C 500

Patent

active

048181978

ABSTRACT:
A progressive cavity pump capable of operating at both high and low system pressures. The pump includes a housing with an elastomeric stator disposed therein. A rotor is rotatably and pumpingly disposed in a pumping chamber defined by the stator. A support member is disposed annularly between inner and outer portions of the stator, and the member bears longitudinally against an annular end portion of the stator and a facing annular shoulder in the housing such that deformation of the stator is prevented when high inlet pressures are present.

REFERENCES:
patent: 2532145 (1950-11-01), Byram
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patent: 2826152 (1958-03-01), Michie
patent: 2862454 (1958-12-01), Alcock
patent: 3084631 (1963-04-01), Bourke
patent: 3104615 (1963-09-01), Szegvari
patent: 3139035 (1964-06-01), O'Connor
patent: 3216768 (1965-11-01), Soeding
patent: 3354537 (1967-11-01), O'Connor
patent: 3771906 (1973-11-01), Bourke
patent: 3838949 (1974-10-01), Makino
patent: 3932072 (1976-01-01), Clark
Catalog CP-8400 published by Continental Pump Company, 11811 Westline Industrial Drive, St. Louis, Missouri 63146.
Ramoy Progressive Cavity Pump Catalog of Robbins & Myers, Inc., Fluid Handling Division, Post Office Box 463, Columbia, South Carolina 29202.

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