Motor driven pump for pumping viscous solutions

Details Motor driven pump for pumping viscous solutions Motor driven pump for pumping viscous solutions

1987-06-17

1990-09-25

Stout, Donald E.

Pumps

Processes

417366, 417368, F04B 1700

Patent

active

049589881

ABSTRACT:
A motor driven pump for pumping a viscous solution of a solute in a solvent comprises an impeller for pumping the solution into an outlet chamber. A shaft is rigidly connected to the impeller and is rotatably mounted in hydrodynamic slide bearings for driving the impeller. A rotor is rigidly mounted on the shaft for rotation therewith in response to actuation of a stator that is operatively associated with the rotor for causing rotation of the shaft. A lubrication system is provided for delivering pressurized solvent to the bearings such that solvent leaking from the bearings flows into the outlet chamber.

REFERENCES:
patent: 2925041 (1960-02-01), Sigmund
patent: 3371613 (1968-03-01), Dahlgren et al.
patent: 3698839 (1972-10-01), Distefano
patent: 4174261 (1979-11-01), Pellegrino
patent: 4355683 (1982-10-01), Griffiths
patent: 4465437 (1984-08-01), Jensen et al.
patent: 4518325 (1985-05-01), Kingston
patent: 4527960 (1985-07-01), DeSisto

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