Scroll compressor made of silicon containing aluminum alloy

Details Scroll compressor made of silicon containing aluminum alloy Scroll compressor made of silicon containing aluminum alloy

1997-09-26

2000-10-17

Freay, Charles G.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

F01C 102

Patent

active

061321923

ABSTRACT:
An orbiting scroll 2 is made of an alloy having a composition of 8-10% by weight of silicon, 2-5% by weight of copper, 0.5-0.8% by weight of magnesium, and remaining percentage of aluminum. The key slots 9 of the orbiting scroll 2 are coated with a layer of hard alumite impregnated by molybdenum disulfide to thereby provide the orbiting scroll 2 with sufficient mechanical strength to stand severe operating conditions and to drastically decrease the frictional abrasion of the key slots.

REFERENCES:
patent: 5125810 (1992-06-01), Suefuji et al.
patent: 5478220 (1995-12-01), Kamitsuma et al.
patent: 5548973 (1996-08-01), Komine et al.
patent: 5584678 (1996-12-01), Hirooka et al.
patent: 5775892 (1998-07-01), Miyasaka et al.

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