Balanced gerotor device with eccentric drive

Details Balanced gerotor device with eccentric drive Balanced gerotor device with eccentric drive

1978-01-23

1980-01-01

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418151, F01C 102, F01C 2100, F01C 2112, F03C 300

Patent

active

041814797

ABSTRACT:
A balanced fluid pressure device of the type including a housing in which a gerotor gear set and a shaft are supported. The gear set includes an externally toothed star gear and an internally toothed ring gear. An eccentric drive mechanism connects the ring gear with the housing so as to establish orbital movement of the ring gear. The star gear orbits within and rotates relative to the ring gear, and is connected with the shaft by another eccentric drive mechanism so as to establish rotational movement of the shaft. The mass and orbit of each gear are such that centrifugal forces developed upon orbiting thereof are substantially equal and opposite, with the result that inertial loading is substantially balanced.

REFERENCES:
patent: 1844471 (1932-02-01), Johnson
patent: 3873248 (1975-03-01), Johnson
patent: 3905727 (1975-09-01), Kilmer
patent: 3909161 (1975-09-01), Stenner
patent: 4025243 (1977-05-01), Stephens

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