Variable output gerotor pump

Details Variable output gerotor pump Variable output gerotor pump

1987-06-23

1988-10-18

Vrablik, John J.

Rotary expansible chamber devices

With changeable working chamber magnitude

Intermeshing rotary members

418 22, 418171, F04C 210, F04C 1504

Patent

active

047783613

ABSTRACT:
A variable output gerotor oil pump of the kind having a common rotor with n teeth meshed with two axially juxtaposed internally lobed annuli with n+1 teeth has the annuli individually located in eccentrics formed with gear teeth to be turned in opposite directions by a gear drive. The teeth are straight cut, not bevel, and the drive includes an intermediate pinion so that a single shaft turns the eccentrics in opposite directions.

REFERENCES:
patent: 2490115 (1949-12-01), Clarke
patent: 2790391 (1957-04-01), Holl
patent: 3122946 (1964-03-01), Hedges
patent: 4406599 (1983-09-01), Stephan
patent: 4439117 (1984-03-01), Bunger

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