High speed self-lubricated fuel pump with hydrostatic bearings

Details High speed self-lubricated fuel pump with hydrostatic bearings High speed self-lubricated fuel pump with hydrostatic bearings

1997-11-14

1999-12-28

Freay, Charles G.

Pumps

Motor driven

Fluid motor

415211, F04B 3500

Patent

active

06007311&

ABSTRACT:
The weight and volume of a centrifugal fuel pump ideally suited for use in a fuel system for a turbine engine (12) may be reduced in a construction including a single shaft (10) mounting an inducing impeller (18), an impeller (22) for a regenerative pump, and an impeller (24) for a centrifugal volute pump. Hydrostatic bearings (26), (28) journal the shaft (10) within a pump housing (14) and are provided with fuel under pressure via a conduit (30) connected to the outlets of the regenerative pump and the centrifugal volute pump defined by the impellers (22) and (24), respectively.

REFERENCES:
patent: 3650580 (1972-03-01), Beisemann
patent: 4671676 (1987-06-01), Chen et al.
patent: 4684318 (1987-08-01), Mulders
patent: 4865529 (1989-09-01), Sutton et al.
patent: 5022228 (1991-06-01), Hoopes et al.
patent: 5061151 (1991-10-01), Steiger
patent: 5310265 (1994-05-01), Strangeland et al.
patent: 5456574 (1995-10-01), Donnelly et al.

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