Patent ID: 6443719
Filing Date: 2002-09-03
Classification: F01C

Abstract:
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 said base, said wraps of said first and second scroll member interfitting to define compression chambers; a shaft driven to rotate, said shaft being operatively connected to drive said second scroll member, a crankcase for supporting said second scroll member; and an Oldham coupling ring positioned between a guiding structure and said second scroll member, said Oldham coupling ring having diametrically opposed circular portions centered on a common point, and having flat portions spaced by 90Â° from said circular portions, said flat portions being connected to circumferential ends of said circular portion by angled portions, said angled portions being line segments which are not parallel to said flat portion, and said Oldham coupling ring being operatively connected to both said guiding structure and said second scroll member to cause said second scroll member to orbit when said shaft rotates.