Patent ID: 6439867
Filing Date: 2002-08-27
Classification: F01C,F16D

Abstract:
A scroll machine comprising:an outer shell; a first scroll member disposed within said shell, said first scroll member having a first spiral wrap projecting outwardly from a first end plate; a second scroll member disposed within said shell, said second scroll member having a second spiral wrap projecting outwardly from a second end plate, said second scroll wrap being interleaved with said first spiral wrap to define a plurality of moving chambers therebetween when said second scroll member orbits with respect to said first scroll member; a coupling disposed between said second scroll member and a non-moving component of said scroll machine, said coupling having a ring and a first key extending from said ring, said first key being disposed within a first slot defined by said second scroll member, said first key having a loaded surface in contact with said second scroll member and a non-loaded surface defining a first clearance with said second scroll member, said first clearance with said second scroll member having a first dimension proximate to said ring and a second dimension distal from said ring, said second dimension being greater than said first dimension.