Displacement type compressor and method of forming coating film

Details Displacement type compressor and method of forming coating film Displacement type compressor and method of forming coating film

1997-09-04

2000-06-27

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418178, F04C 2900

Patent

active

060799633

ABSTRACT:
A scroll type compressor comprises a stationary scroll and a rotary scroll which is assembled with the stationary scroll so as to define a closed space, the outer surface of the rotary scroll 22 is formed thereon with a tin compound film containing a tin compound and having a thickness of 50 .mu.m. Such a coating film is never peeled off from a member even after long time operation, and is excellent in sealability and conformability, in the displacement type compressor.

REFERENCES:
patent: 4579512 (1986-04-01), Shiibayashi et al.
patent: 4724172 (1988-02-01), Mosser et al.

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