Pump with screw conveyors on each end

Details Pump with screw conveyors on each end Pump with screw conveyors on each end

1983-06-29

1985-12-17

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

Extending along runner axis

366192, 198671, F04D 302, B65G 3324

Patent

active

045589852

ABSTRACT:
An annular nonreturn valve is provided in a pump with a screw conveyor mounted at each end. This nonreturn valve seals the outlet end of the pump. It also makes it possible for the conveyed material to be discharged without deflection in the slug area. The pivotability of the sealing element is made possible by the fact that the screw conveyor shaft has a smaller diameter in the direction of conveying behind the annular nonreturn valve. An area with enlarged diameter of the screw conveyor shaft can be provided on a casing so that wear parts can be easily replaced.

REFERENCES:
patent: 2042641 (1936-06-01), Victoria
patent: 2131453 (1938-09-01), Patteson
patent: 3191229 (1965-06-01), Vanzo
patent: 3387696 (1968-06-01), Prentice
patent: 3451531 (1969-06-01), Barnes
patent: 4109966 (1978-08-01), Boyhont et al.

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