Scroll member

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1981-10-23

1984-04-10

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418150, F01C 102

Patent

active

044418701

ABSTRACT:
A scroll member including a wrap having its thickness boundaries defined by an outer side wall surface and an inner side wall surface, wherein the inner side wall surface of the wrap includes a starting end portion formed to coincide with an arc of a circle having a predetermined radius.

REFERENCES:
patent: 3884599 (1975-05-01), Young et al.
patent: 4192152 (1980-03-01), Armstrong et al.

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