Regenerative fuel pump

Details Regenerative fuel pump Regenerative fuel pump

1996-06-12

1997-10-28

Schwartz, Larry I.

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

298883, 29451, 29453, 415 551, F04D 500

Patent

active

056807007

ABSTRACT:
An electric-motor fuel pump that includes a housing with a fuel inlet and a fuel outlet, and an electric motor with a rotor responsive to application of electrical power for rotating within the housing. A pump mechanism includes an impeller coupled to the rotor for corotation with the rotor and having a periphery with a circumferential array of impeller vanes. A pair of plates oppose the sides of the impeller and a split ring surrounds the periphery of the impeller to form an arcuate pumping channel around the periphery of the impeller. Inlet and outlet ports at opposed ends of the pumping channel are operatively coupled to the inlet and outlet in the pump housing. Channels extend radially inwardly from the pockets in each side face of the impeller, and are interconnected by through-passages that extend through the impeller. A vapor vent is disposed in one of the side plates for sequential registry with the impeller through-openings for venting vapor from the pumping channel.

REFERENCES:
patent: 3733682 (1973-05-01), Mercier
patent: 3765329 (1973-10-01), Kirkpatrick et al.
patent: 4854830 (1989-08-01), Kozawa et al.
patent: 5160249 (1992-11-01), Iwai et al.
patent: 5221178 (1993-06-01), Yoshioka et al.
patent: 5257916 (1993-11-01), Tuckey
patent: 5338165 (1994-08-01), Brockner et al.
patent: 5401147 (1995-03-01), Yu

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