Power conserving inducer

Details Power conserving inducer Power conserving inducer

1977-11-08

1979-04-17

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

With pump recirculation passage control responsive to...

415 46, 415 53R, F04D 1500

Patent

active

041498259

ABSTRACT:
An axial inducer, which charges the inlet of a centrifugal impeller has a bypass loop connecting its inlet and outlet. A valve member for controlling bypass flow is positioned in the bypass loop. At low flows, the bypass loop permits the inducer to run closer to design flow conditions than would otherwise be possible and, consequently, generate less pressure rise, consume minimum power, and cause minimal heating of the fluid being pumped. An extension of the bypass valve member functions to restrict the centrifugal pump discharge area when the valve member is positioned to bypass flow to reduce recirculating flow in the centrifugal impeller and increase its efficiency.

REFERENCES:
patent: 2874642 (1959-02-01), Forrest
patent: 3504986 (1970-04-01), Jackson
patent: 3941498 (1976-03-01), Duckworth et al.

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