Gerotor pump having axial fluid transfer passages through the lo

Details Gerotor pump having axial fluid transfer passages through the lo Gerotor pump having axial fluid transfer passages through the lo

1989-07-07

1991-01-22

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418166, 418186, F04C 210

Patent

active

049867393

ABSTRACT:
A gerotor pump set passages 32 extending parallel to the axis of rotation through the female lobed annulus, and similar passages through the male lobed rotor. These passages enable flow from the fluid inlet to pass into the working chamber such as 43 either directly at the inlet end, or after flow through those passages and through the transfer passage 43 at the opposite axial end to the inlet, without requiring a transfer passage externally of the annulus. the result is better axial filling of the working chambers, in a particularly compact design.

REFERENCES:
patent: 2866417 (1958-12-01), Nubling
patent: 2989951 (1961-06-01), Charlson
patent: 3034484 (1962-05-01), Stefancin
patent: 4235217 (1980-11-01), Cox
patent: 4502855 (1985-03-01), Petersen et al.

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