Title: Radial balancing means for a hydraulic device

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.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Swedberg, Nils Einar (Chanhassen, MN, US)

Application Number: 530638
Filing Date: 1974-12-09
Publication_date: 1976-01-06
Assignee: Eaton Corporation (OH)
Primary Class(es): 418/61.3 418/125
Other Classes:
US Patent Ref:

3389618	Jun, 1968	McDermott	418/61.
3591320	Jul, 1971	Woodling	418/61.
3680987	Aug, 1972	Ohrberg	418/61.
3692439	Sep, 1972	Woodling	418/61.

Other Refs:
Primary Examiner: Vrablik, John J.
Assistant Examiner:
Attorney: Teagno & Toddy