Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1987-11-20
1989-06-06
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418 57, 418182, 384271, 384447, 464112, 464132, F01C 104, F01C 1706, F16C 1102, F16C 2502
Patent
active
048367583
ABSTRACT:
A scroll machine having an eccentric crank pin on a cranshaft disposed nonrotatably in the bore of a drive busing for driving the orbiting scroll of the compressor. A flat on the crank pin drivingly engages a flat in the bore, one flat being at an acute angle to the normal cranksahft axis so that when the crankshaft deflects under normal loads the flats come into better contact with one another to reduce unwanted wear. Several other embodiments are also disclosed.
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Elson John P.
Kramp Stephen F.
Copeland Corporation
Vrablik John J.
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