Method of reducing hydraulic instability

Details Method of reducing hydraulic instability Method of reducing hydraulic instability

1993-01-04

1994-02-15

Look, Edward K.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

415206, 415914, F04D 2968

Patent

active

052861627

ABSTRACT:
The present invention is directed to a method and apparatus for improving the flow range in centrifugal pumps and compressors. Bleed holes are introduced into a volute tongue of a centrifugal pump or compressor thereby providing a double acting means of boundary layer control at the volute tongue.

REFERENCES:
patent: 3522994 (1970-08-01), Zenkner
patent: 3684396 (1972-08-01), Ball et al.
patent: 4006997 (1977-02-01), Friberg et al.
patent: 4156344 (1979-05-01), Cutbertson et al.
patent: 4212585 (1980-07-01), Swarden et al.
patent: 4479755 (1984-10-01), Skoe
patent: 4624104 (1986-11-01), Stroem

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