Radial balancing means for a hydraulic device

Details Radial balancing means for a hydraulic device Radial balancing means for a hydraulic device

1974-12-09

1976-01-06

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Plural working members or chambers

418125, F01C 102, F03C 300, F04C 102

Patent

active

039307662

ABSTRACT:
An improved radial, pressure-balancing arrangement for fluid-operated devices of the geroter type wherein an externally-toothed star member is eccentrically disposed within an internally-toothed ring member to form a plurality of expanding and contracting volume chambers by tooth interaction. The ring member has a plurality of pockets receiving a like number of rollers rotatable therein which define the teeth of the ring member. Particularly configured recesses are located at predetermined positions within each pocket. The recesses are effective to provide a predetermined pressure pattern behind a selective roller at any particular time during the operation cycle. The pressure pattern thus formed biases the selective roller against a mating star tooth to seal volume chambers at high pressure from those at low pressure.

REFERENCES:
patent: 3389618 (1968-06-01), McDermott
patent: 3591320 (1971-07-01), Woodling
patent: 3680987 (1972-08-01), Ohrberg
patent: 3692439 (1972-09-01), Woodling

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