Oldham ring system for rotary fluid apparatus

Details Oldham ring system for rotary fluid apparatus Oldham ring system for rotary fluid apparatus

1996-06-21

1999-07-13

Freay, Charles G.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 94, 464104, F01C 104

Patent

active

059217626

ABSTRACT:
An Oldham ring system for a rotary fluid compressor, comprising: a motor shaft; an eccentric shaft; a revolving part with two first gliding elements on its lower side; a stator; an Oldham ring, its upper side being provided with two second gliding elements fitting the two first gliding elements, and its lower side being provided with two third gliding elements for a perpendicular gliding movement; and a frame, on its perimeter being provided with two holders and with two fourth gliding elements in between that glide against said third gliding elements; wherein the characteristic is that the Oldham ring is, on the two opposite sides located next to the holders of the frame, provided with two straight shortcuts to reduce the width of the Oldham ring next to the holders; and wherein the first and second gliding elements as well as the third and fourth gliding elements each are provided with a groove in the gliding direction to provide for a flow path for lubricating oil.

REFERENCES:
patent: 5395220 (1995-03-01), Miura et al.
patent: 5582512 (1996-12-01), Bush

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