Patent ID: 6179591
Filing Date: 2001-01-30
Classification: F04C

Abstract:
A scroll machine comprising:a shell;a first scroll member disposed within said shell, said first scroll member having a base plate and a first spiral wrap extending from said first base plate;a second scroll member disposed within said shell, said second scroll member having a second spiral wrap, said second spiral wrap being intermeshed with said first spiral wrap;a drive member for causing said scroll members to orbit relative to one another whereby said spiral wraps create pockets of progressively changing volume between a suction pressure zone and a discharge pressure zone;a hub extending from said base plate of said first scroll member, said hub defining a bore within which said drive member is disposed, said bore having a first diameter located adjacent said base plate and a second diameter located distal from said base plate; anda bearing disposed within said bore of said hub in a press fit relationship with said hub, said first diameter of said bore being greater than said second diameter of said bore prior to said bearing being press fit within said bore.