Scroll fluid machine and producing method for the same

Details Scroll fluid machine and producing method for the same Scroll fluid machine and producing method for the same

1992-09-11

1994-01-11

Bertsch, Richard A.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418179, 295275, 2988802, F01C 102, F01C 1063

Patent

active

052775623

ABSTRACT:
A scroll blade of a scroll fluid machine is formed of eutectic graphite cast iron in whose structure the average value of the largest eutectic shell is not more than one fourth of the height of a lap of the scroll blade. The scroll blade material thus formed will facilitate increasing working precision and reducing the number of working steps.

REFERENCES:
patent: 4875839 (1989-10-01), Sakata et al.
patent: 5122040 (1992-06-01), Fields
patent: 5131827 (1992-07-01), Tasaka

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