Internal gear pump

Details Internal gear pump Internal gear pump

1992-10-30

1993-09-07

Bertsch, Richard A.

Rotary expansible chamber devices

Moving cylinder

Rotating

418171, F01C 110

Patent

active

052422860

ABSTRACT:
An internal gear pump is disclosed having at least two essentially identical internal gears and a pinion meshing with the internal gears, all being rotatably disposed in a housing, the axial dimension of which is substantially equal to the width of the gear and pinion teeth. The housing includes a suction connection and a pressure connection. The internal gears have radial through-bores for the medium to be pumped. A support is provided at the contacting surfaces of the internal gears near the pressure connection.

REFERENCES:
patent: 1624099 (1927-04-01), Haight
patent: 5135371 (1992-08-01), Arbogast et al.

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