Two stage lateral channel-regenerative turbine pump with vapor r

Details Two stage lateral channel-regenerative turbine pump with vapor r Two stage lateral channel-regenerative turbine pump with vapor r

1994-07-14

1995-05-09

Bertsch, Richard A.

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

415 84, 4151691, 417251, F01D 112

Patent

active

054134579

ABSTRACT:
A fuel pump structure which includes an electrically driven rotor in a sealed housing which has an inlet and an outlet. A single rotor in the housing has three operating areas. At the outer periphery are vanes operating in an annular sweep channel as a second stage, high pressure regenerative pump which discharges to the housing outlet. Radially within the outer periphery are two radially spaced series of blades forming axial passages in the rotor. The first and outer series of blades operate under a lateral channel to form a first or primary stage pump delivering to a central swirl chamber above and below the rotor. The second and inner series of blades and axial passages allow passage through the rotor to the lower swirl chamber which has a tangential outlet directed to the inlet of the regenerative second stage pump. The base of the lower swirl chamber has a central vapor outlet to allow vapor to leave the fuel which is entering the high pressure pump.

REFERENCES:
patent: 4408952 (1983-10-01), Schweinfurter
patent: 4450354 (1985-09-01), Tuckey
patent: 4556363 (1985-12-01), Watanabe et al.
patent: 4844621 (1989-04-01), Aichi et al.
patent: 4865521 (1989-09-01), Ise et al.
patent: 5129796 (1992-07-01), Emmert et al.
patent: 5149252 (1992-09-01), Tuckey
patent: 5257916 (1993-11-01), Tuckey
patent: 5265644 (1993-11-01), Tuckey
patent: 5265997 (1993-11-01), Tuckey
patent: 5338151 (1994-08-01), Kemmner et al.

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