Gear rotor fuel pump

Details Gear rotor fuel pump Gear rotor fuel pump

1984-08-21

1986-06-24

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418133, 418135, 418171, F04C 210, F04C 1502

Patent

active

045965196

ABSTRACT:
A rotary pump for pumping liquid which includes a rotor combination in the form of a vane pump or gear and rotor with pumping chambers disposed circumferentially around the rotor. The chambers progressively increase in the inlet area and ensmall in the outlet area. Resilient means are interposed between the ensmalling chambers and an outlet to block backflow of the pressurized outlet liquid into pumping chambers containing vaporized liquid instead of solid liquid, thus reducing the pump noise under conditions of vaporization termed "cavitation".

REFERENCES:
patent: 1631591 (1927-06-01), Hill
patent: 2380783 (1945-07-01), Painter
patent: 2383153 (1945-08-01), Parsons
patent: 2417701 (1947-03-01), Parsons
patent: 2670688 (1954-03-01), Graham
patent: 2787963 (1957-04-01), Dolan et al.
patent: 3026807 (1962-03-01), Anderson et al.
patent: 3198127 (1965-08-01), Brundage
patent: 3208392 (1965-09-01), Garrison et al.
patent: 4315719 (1982-02-01), Sakamaki et al.
patent: 4443169 (1984-04-01), Merz

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