Hydraulic screw pump

Details Hydraulic screw pump Hydraulic screw pump

1990-04-16

1991-12-17

Look, Edward K.

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

Extending along runner axis

415 6, 416224, 198673, 198676, 366 81, 366319, 366320, F01D 500

Patent

active

050730827

ABSTRACT:
In a hydraulic screw pump, a sealing element for the peripheral edge of the rotary screw. The sealing element is formed with a channel along its length to fit over this edge of the rotary screw. The channel may be varied in depth to adjust the gap between the rotary screw and a water-carrying trough for the pump. The width of the channel may also be adjusted to accommodate rotary screws of varying thicknesses. The sealing element, thus, retains the desired width of the gap even though the edges of the rotary screw are chipped or worn away.

REFERENCES:
patent: 2397305 (1946-03-01), Wheat
patent: 3396976 (1968-08-01), Reinhoudt et al.
patent: 3653303 (1972-04-01), Zurcher
patent: 4274751 (1981-06-01), Rector et al.
patent: 4772177 (1988-09-01), Hayashi
K. Radlik, Abwassertechnik, 1987, No. 2, pp. 52-53.

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