Scroll compressor having grooves for seal members

Details Scroll compressor having grooves for seal members Scroll compressor having grooves for seal members

1994-12-27

1996-12-03

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 554, 418142, 29888022, F04C 1804, F04C 2700

Patent

active

055802281

ABSTRACT:
A scroll member has a scroll wall having an axial end having a transverse surface on which a groove 20 is cut along the spiral direction of the scroll wall, to which groove a seal member contacting a facing scroll member is received. The scroll wall having a radially inner portion of having a width larger than the width of remaining part of the scroll wall. At the radially inner portion, the groove is also widened. When molding the scroll member, a recess deeper than the depth of the groove to be machined is created. The groove is obtained by machining the scroll member as molded by a milling tool. The widened portion of the groove is formed by moving a milling tool along a closed trajectory, so that the recess is left un-machined.

REFERENCES:
patent: 5364247 (1994-11-01), Fukanuma et al.
patent: 5427513 (1995-06-01), Yamada et al.

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