Lightweight scroll element and method of making

Details Lightweight scroll element and method of making Lightweight scroll element and method of making

1994-02-22

1995-12-26

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 555, 418 56, 418 57, 418152, 418179, 29888022, F01C 104, F01C 2108

Patent

active

054782198

ABSTRACT:
An orbiting scroll is made with a ceramic particle reinforced aluminum metal matrix composite. The resultant part has increased wear resistance, closer thermal expansion matching with cast iron, can be used without tip seals and offers the advantages associated with a reduced mass. In manufacturing the part, the part is pressure cast to a near net shape and machined to the final shape.

REFERENCES:
patent: 4540355 (1985-10-01), Sakaki et al.
patent: 4838936 (1989-06-01), Akechi
patent: 5255729 (1993-10-01), Cook

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