Anti-rotation coupling for a scroll machine

Details Anti-rotation coupling for a scroll machine Anti-rotation coupling for a scroll machine

1985-11-14

1987-04-07

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

291564R, 464102, F01C 104, F16D 304

Patent

active

046556966

ABSTRACT:
This invention is an improved "Oldham coupling" for use in a scroll machine to prevent angular rotation of one of the scroll members relative to the other. The coupling is of simplified one-piece construction that can be stamped from sheet metal in a single operation. The preferred embodiment is an oval-shaped stamped ring having four tabs extending from its perimeter at 90.degree. intervals. Two of the tabs, at opposite sides of the ring, slidingly engage slots in one of the orbiting scroll members while the other two tabs slidingly engage slots disposed either in the stationary frame of the scroll machine or in the other scroll member.

REFERENCES:
patent: 1769107 (1930-07-01), Brown
patent: 3884599 (1975-05-01), Young et al.
patent: 3924977 (1975-12-01), McCullough
patent: 4065279 (1977-12-01), McCullough
patent: 4325683 (1982-04-01), Miyazawa

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