Multi-stage fuel pump

Details Multi-stage fuel pump Multi-stage fuel pump

2005-05-17

2005-05-17

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

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

Turbine regenerative pump

Reexamination Certificate

active

06893206

ABSTRACT:
A multi-stage fuel pump has a drive assembly, a pump assembly including first and second pumping elements disposed between various plates of the pump assembly, and first and second pumping channels each having an inlet and an outlet circumferentially offset from the inlet and the outlet of the other pumping channel. Desirably, the pumping channels are offset to control or orient the forces acting on the drive assembly, pumping elements and the plates of the pump assembly, including radial, axial and torsional forces.

REFERENCES:
patent: 2340787 (1944-02-01), Zenner et al.
patent: 3477636 (1969-11-01), Gessner
patent: 4209284 (1980-06-01), Lochmann et al.
patent: 4445821 (1984-05-01), Watanabe et al.
patent: 5257916 (1993-11-01), Tuckey
patent: 5340284 (1994-08-01), Nicol
patent: 5642981 (1997-07-01), Kato et al.
patent: 6162012 (2000-12-01), Tuckey et al.
patent: 58013189 (1983-01-01), None

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