Gear pump and method of using same

Details Gear pump and method of using same Gear pump and method of using same

1995-04-07

1996-08-20

Freay, Charles G.

Rotary expansible chamber devices

Trapped fluid relief

418 1, 418102, 4182061, F01C 2100

Patent

active

055473563

ABSTRACT:
To reduce squeeze pressure peaks on meshing rotors of a gear pump, recesses are molded into the product duct wall in the meshing area, on the delivery side and the suction side. The recesses are formed with spherical segments or other continuously curved surfaces.

REFERENCES:
patent: 3113524 (1963-12-01), Fulton
patent: 3303792 (1967-02-01), Littlewood
patent: 4017224 (1977-04-01), Jons
patent: 4737087 (1988-04-01), Hertell
patent: 5190450 (1993-03-01), Ghosh et al.

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