Gerotor pump

Details Gerotor pump Gerotor pump

2007-10-09

2007-10-09

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With mechanical sealing

Axially movable end wall or end wall portion

C418S166000, C418S168000, C418S171000

Reexamination Certificate

active

10767828

ABSTRACT:
Improved gerotor pumps comprising laterally constrained floating rings, thereby providing an orthogonal degree-of-freedom and allowing gerotor sets positioned therein to establish their own preferred mesh orientation, and additionally wherein the outer rotor of the gerotor set is forcibly positioned against the inner rotor of the gerotor set at the gerotor set's in-mesh position whereat there is little relative motion between the inner and outer rotors, thereby resulting in a substantially friction- and wear-free meshing action of the gerotor set.

REFERENCES:
patent: 3034447 (1962-05-01), Brundage
patent: 3034448 (1962-05-01), Brundage
patent: 3824047 (1974-07-01), McDermott
patent: 3907465 (1975-09-01), Dorff et al.
patent: 4013388 (1977-03-01), Stratman
patent: 5711408 (1998-01-01), Dick
patent: 76033 (1983-04-01), None

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