Centrifugal pump of the pitot type

Details Centrifugal pump of the pitot type Centrifugal pump of the pitot type

1975-09-02

1976-12-28

Husar, C. J.

Rotary kinetic fluid motors or pumps

Centrifugal bowl pump

233 44, F04D 112

Patent

active

039998819

ABSTRACT:
The cross section of a flow passage in a pitot tube of a pitot tube pump begins as circular, becomes continuously changing to ovular during a change in passage direction from circumferential to radial, and, when the passage is radial, is long and narrow with parallel sides and curved ends. Within a given, generally ovular cross section the passage has its greatest width at larger radii. The inside wall of the passage curves gradually from the entrance towards the axis of the pump, and, towards the purely radial portion of the passage, curves relatively sharply. A perimeter of the pitot tube in planes perpendicular to the tube's radial axis and parallel to the circumferential component of fluid motion externally of the pitot tube is in the form of a fluid foil having a leading edge which is relatively blunt with respect to the trailing edge. The long axis of the fluid foil points into the fluid.

REFERENCES:
patent: 3051089 (1962-08-01), Hany et al.
patent: 3384024 (1968-05-01), King
patent: 3776658 (1973-12-01), Erickson
patent: 3838939 (1974-10-01), Erickson et al.
NASA Tech. Brief 68-10395, Oct. 1968, by Gerlach.

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