Patent ID: 6887052
Filing Date: 2005-05-03
Classification: F04C,F05C,Y10T

Abstract:
1. A method of forming a scroll compressor comprising the steps of: (1) providing first and second scroll members, with each of said scroll members including a base and a generally spiral wrap extending from said base; (2) providing an abradable coating on a tip of said wrap of at least one of said first and second scroll members, with said coating being a coating material which will change its shape when it encounters the mating surface of the other of said first and second scroll members, and formed only at radially inner portions of said generally spiral wrap, with radially outer portions left uncoated; and (3) causing said second scroll member to orbit relative to said first scroll member with a surface of said coated tip moving along a floor of said base of the other of said first and second scroll members such that said coating moves to match said floor and results in a tight tolerance between said tip of said scroll wrap and the floor of said base of the other of said first and second scroll members.