Gear pump with means for dispersing gas into liquid

Details Gear pump with means for dispersing gas into liquid Gear pump with means for dispersing gas into liquid

1978-03-09

1980-03-18

Vrablik, John J.

Rotary expansible chamber devices

Multistage

Interengaging rotary members

418 15, 418 75, 418206, 261 28, 261 84, 366272, F04C 108, F04C 1300, F04C 1100, B01F 514

Patent

active

041937457

ABSTRACT:
A gear pump for dispersing a gas into a liquid is provided with mixing means for improving the uniformity of the dispersion. In preferred form, the mixing means comprises a series of fixed, shallow, blind cavities that open to the pumping cavity between the liquid inlet and the outlet, and which are positioned to be "wiped" by the gear teeth as the gears rotate. The alternate connection and disconnection of the intertooth spaces to these cavities as the gears rotate establishes motion or turbulence of the gas/liquid mixture within the intertooth spaces, and surprisingly improves uniformity of the dispersion.

REFERENCES:
patent: 2578380 (1951-12-01), Teegen
patent: 2845873 (1958-08-01), Lapsley
patent: 3606269 (1971-09-01), Trumbull
patent: 3689181 (1972-09-01), Maxwell
patent: 3764238 (1973-10-01), Carpigiani
patent: 3965860 (1976-06-01), Cone et al.
patent: 4059466 (1977-11-01), Scholl et al.
patent: 4059714 (1977-11-01), Scholl et al.

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