Rotary drainage pump lubrication device and separator

Details Rotary drainage pump lubrication device and separator Rotary drainage pump lubrication device and separator

1992-08-04

1993-11-09

Bertsch, Richard A.

Rotary expansible chamber devices

Shaft or trunnion lubrication or sealing by diverted working...

418269, 418DIG1, F01C 100, F04C 1800

Patent

active

052597415

ABSTRACT:
A device to separate muddy water from slurry which is being drained away and a means to use said muddy water to both seal and lubricate a gap between the guide channels and the vanes of the drainage pump, thereby securing the efficient long-term functioning of the pump. The invention presupposes the use of a vane type rotary drainage pump connected to a separation means which is set up to remove muddy water from the slurry discharged from the discharge port. A pressure chamber is incorporated into said rotor and connection with the inner ends of each of said guide channels. The muddy water separated out by the separation means is fed back into said pressure chamber.

REFERENCES:
patent: 3372646 (1968-03-01), Pinkas et al.
patent: 4190538 (1980-02-01), Chen
patent: 4897194 (1990-01-01), Olson
patent: 5051065 (1991-09-01), Hansen
patent: 5160252 (1992-11-01), Edwards

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