Pump

Details Pump Pump

1996-12-05

1998-07-21

Kwon, John T.

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

347 75, 347 85, F04D 2928

Patent

active

057826048

ABSTRACT:
A pump (1) has a rotor (4) and a stator (3) disposed closely adjacent to and biased towards it, but spaced apart from a surface of the rotor. The stator (3) or rotor (4) has recesses (30) on its surface facing the rotor or stator respectively, and an inlet to and an outlet from each recess to provide for the supply of fluid to and from the recess. Rotation of the rotor (4) about its axis is arranged to cause fluid to be pumped from the inlet to the outlet as a result of the viscous drag on the fluid resulting from rotation of the rotor relative to the stator (3). The force biasing the rotor (4) and stator (3) together is provided at least in part by fluid pressure feedback from the pump (1) in order to control the clamping or biasing pressure between the rotor and stator automatically.

REFERENCES:
patent: 1295621 (1919-02-01), Simond
patent: 1588160 (1926-05-01), Mauron et al.
patent: 3735199 (1973-05-01), Ascoli
patent: 3781136 (1973-12-01), Jacobson
patent: 4025225 (1977-05-01), Durant
patent: 5496149 (1996-03-01), Dugan
patent: 5534904 (1996-07-01), Sheinman

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