Variable flank relief for scroll wraps

Details Variable flank relief for scroll wraps Variable flank relief for scroll wraps

1999-01-27

2000-11-21

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 55, 418 50, 29888022, 29 235, F01C 102

Patent

active

061494119

ABSTRACT:
A scroll compressor having a non-uniform generating radius for its scroll wraps is formed to have a flank relief which is greatest at locations having the highest generating radius. In scroll compressors having non-uniform generating radii, there is an increased likelihood of contact at the areas having the highest generating radius. Thus, flank relief is provided at the areas having the higher generating radii. In addition, the flank relief is preferably proportional to the generating radius. Further at areas having a generating radius below a predetermined minimum, no flank relief is necessary.

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patent: 5342184 (1994-08-01), Comparin et al.
patent: 5425626 (1995-06-01), Tojo et al.

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