Circumferential flow type liquid pump

Details Circumferential flow type liquid pump Circumferential flow type liquid pump

1992-03-24

1993-06-22

Kwon, John T.

Rotary kinetic fluid motors or pumps

With means for re-entry of working fluid to blade set

Turbine regenerative pump

4151691, F04D 500

Patent

active

052211789

ABSTRACT:
A circumferential flow type liquid pump includes an impeller with vanes on its outer periphery, and a pump casing assembly defining an arcuate elongated pump flow path along the outer periphery of the impeller and a suction inlet and a discharge outlet at both ends of the pump flow path. The pump casing assembly includes a radially-extending gas venting path which is opened in the inner periphery of the pump flow path near the impeller and separated by a step from the bottom of the pump flow path, and a through-hole much larger in sectional area than the gas venting path, through which the gas venting path is communicated with the outside of the pump casing assembly. Bubbles formed by vaporization of the fuel in the pump flow path are positively discharged from the pump casing assembly, and no vapor locking is caused.

REFERENCES:
patent: 4205947 (1980-06-01), Ruhl et al.
patent: 4591311 (1986-05-01), Matsuda et al.
patent: 4673333 (1987-06-01), Kluge
patent: 4793766 (1988-12-01), Kumata
patent: 4844621 (1989-07-01), Umemura et al.

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