Patent ID: 7179067

Claim:
A scroll compressor comprising: a first scroll member having a base and a generally spiral wrap extending from said base; a second scroll member having a base and a generally spiral wrap extending from its base, said second scroll member being caused to orbit relative to said first scroll member, said wraps having flank walls in contact with each other at contact points; and said wraps of at least one of said first and second scroll members including a coating at radially inner portions of said generally spiral wrap, and on a flank wall, with said coated generally spiral wrap having outer portions which remain uncoated, said coating being formed of a coating material which will change its shape when it encounters the mating surface of the other of said first and second scroll members, such that as said second scroll member is caused to orbit relative to said first scroll member, said coating moving to result in a close tolerance fit between said flank walls of said generally spiral wraps of said first and second scroll members, with radially outer portions of said wrap bearing a load between said first and second scroll members.