Rotation preventing device for an orbiting member of a fluid dis

Details Rotation preventing device for an orbiting member of a fluid dis Rotation preventing device for an orbiting member of a fluid dis

1983-08-08

1986-05-20

Hart, Douglas

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

464103, F01C 102

Patent

active

045898286

ABSTRACT:
A rotation preventing/thrust bearing device for use in an orbiting piston type fluid displacement apparatus is disclosed. The rotation preventing/thrust bearing device includes a fixed portion, an orbital portion and bearing elements. The bearing elements are cylinder shaped and placed between facing pairs of pockets formed in the fixed and orbital portion. The bearing elements are axially slidable in the pockets. The outer peripheral surface of the bearing elements contacts the opposing inner walls of the pockets, whereby rotation of the orbiting piston is prevented and the axial thrust load from the orbiting piston is carried through cylindrical shaped elements.

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