Gerotor pump with blind-end groove on each lobe of the annulus

Details Gerotor pump with blind-end groove on each lobe of the annulus Gerotor pump with blind-end groove on each lobe of the annulus

1991-06-26

1992-09-08

Vrablik, John J.

Rotary expansible chamber devices

Grooved abutting cylinder-rotating member end surfaces

Grooved working member surface

418171, F04C 210

Patent

active

051453479

ABSTRACT:
A gerotor set (FIG. 1) has grooves 108 extending across the end face of the annulus adjacent the outlet port so as to allow flow from each chamber in turn into the outlet at a time when the chamber per se is not yet registered with the outlet, so as to prevent noise due to the trapped volume being compressed when it is unable to escape into either port.

REFERENCES:
patent: 4235217 (1980-11-01), Cox

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