Scroll compressor having a bevelled facing section

Details Scroll compressor having a bevelled facing section Scroll compressor having a bevelled facing section

1995-03-14

1996-12-17

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418178, F04C 1804

Patent

active

055846777

ABSTRACT:
A base plate 41 of a movable scroll member 4 has, at its outer periphery, a section 44 with no scroll wall, while a scroll wall 22 of a stationary scroll member 2 has a section 24 for connecting to an outer cylindrical shell 22. These sections 44 and 24 make a relative lateral slide movement during an orbital movement of the movable scroll member 4 with respect to the stationary scroll member 2. These sections 44 and 24 have axially faced inner and outer edges 44-1 and 24-1, over which the relative lateral movement occurs. These inner and outer edges 44-1 and 24-1 are bevelled, the bevelling being such that any skewed movement of the movable scroll member with respect to the stationary scroll member does not cause locally increased contact pressure, thereby preventing galling as well as seizing.

REFERENCES:
patent: 4579512 (1986-04-01), Shiibayashi et al.
patent: 4666380 (1987-05-01), Hirano et al.
patent: 4824345 (1989-04-01), Fukuhara et al.
patent: 4904169 (1990-02-01), Ichikawa
patent: 5320505 (1994-06-01), Misiak et al.
patent: 5364247 (1994-11-01), Fukanuma et al.

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