Scroll type fluid transferring machine with thermoplastic Oldham

Details Scroll type fluid transferring machine with thermoplastic Oldham Scroll type fluid transferring machine with thermoplastic Oldham

1990-02-23

1991-12-10

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 56, 464102, 464903, F01C 104, F16D 304

Patent

active

050713299

ABSTRACT:
A scroll type fluid transferring machine comprises a stationary scroll having a wrap member, a movable scroll having a wrap member combined with the stationary scroll, a driving means for causing the movement of revolution of the movable scroll along a circular orbit so as to make the movable scroll line-contact with the stationary scroll whereby a closed space is produced between the stationary and movable scrolls, and an Oldham ring for maintaining the stationary and movable scrolls at predetermined positions while the movement of rotation of the both scrolls are prevented, wherein the Oldham ring is formed by injection-molding at least one thermoplastic resinous material selected from the group consisting of polyphenylene sulfide, polyetheretherketone, polyetherketone, wholly aromatic polyester, polysulfone, polyarylsulfone, polyethersulfone, polyetherimide, polyoxybenzyliden polyketonsulfide, polythioethersulfone and polyarylate.

REFERENCES:
patent: 4702683 (1987-10-01), Inaba et al.
patent: 4958993 (1990-09-01), Fujio

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