Scroll fluid apparatus with an arcuate recess adjacent the stati

Details Scroll fluid apparatus with an arcuate recess adjacent the stati Scroll fluid apparatus with an arcuate recess adjacent the stati

1981-10-23

1984-04-17

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 75, F01C 102, F01C 2100

Patent

active

044431660

ABSTRACT:
A scroll fluid apparatus including two scroll members, with one scroll member having a wrap and an annular portion located outside the wrap and having a height corresponding to the height of the wrap. The annular portion is contiguous at its surface in the form of a land with the surface of the wrap for a circumferential extent of within 180 degrees from the terminating end of the wrap, and a strip-shaped recess is formed in the land, with the strip-shaped form having an end portion maintained in communication with a low pressure zone surrounded by the annular portion of the scroll member.

REFERENCES:
patent: 3884599 (1975-05-01), Young et al.
patent: 3924977 (1975-12-01), McCullough
patent: 3986799 (1976-10-01), McCullough
patent: 4350479 (1982-09-01), Tojo et al.

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