Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1997-07-07
1999-11-16
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
29464, 29888022, F04C 1804
Patent
active
059846534
ABSTRACT:
A method and mechanism for aligning a fixed scroll member relative to a main bearing member in a scroll compressor. A shoulder is machined on the outer perimeter of a main bearing member and interfits with an arcuate lip on the fixed scroll member to thereby center the fixed scroll member. A notch is machined into the arcuate lip of the fixed scroll member and receives a projecting pin disposed on the main bearing member when the fixed scroll is assembled to the main bearing member. Relative rotation of the fixed scroll member and main bearing member brings one edge of the projecting pin into engagement with an abutment surface defining one end of the notch and thereby properly rotationally positioning the fixed scroll member. The fixed scroll member is subsequently axially secured to the main bearing member with a plurality of bolts.
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Tecumseh Products Company
Vrablik John J.
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