Tandem type gear pump having an integral inner middle partition

Details Tandem type gear pump having an integral inner middle partition Tandem type gear pump having an integral inner middle partition

1993-03-18

1995-01-03

Vrablik, John J.

Rotary expansible chamber devices

Shaft or trunnion lubrication or sealing by diverted working...

418132, 418200, F04C 218, F04C 1100, F04C 1500

Patent

active

053781309

ABSTRACT:
In a tandem type gear pump, the housing body has an inner middle partition wall portion integral with the body and having bearing means. The housing body is formed at the opposite axial end faces thereof with a pair of recesses each shaped like a pair of glasses, with a pair of covers being fixed to the axial end faces of the body to close the recesses. A pair of gear pump units are set in the recesses so as to be rotatable by the bearing means in synchronism with each other. The housing is provided with inlet and outlet port means in communication with the gear pump units.

REFERENCES:
patent: 2533320 (1950-12-01), Hull et al.
patent: 2931302 (1960-04-01), Dlugos
patent: 2965036 (1960-12-01), Wood
patent: 3041974 (1962-07-01), Judkins
patent: 3472023 (1969-10-01), Gimmler
patent: 3909165 (1975-09-01), Laumont
patent: 4259045 (1981-03-01), Teruyama

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