Patent ID: 6382941
Filing Date: 2002-05-07
Classification: F01C,F04C,Y10T

Abstract:
A scroll-type compressor comprising:a housing forming a counterweight cavity; a drive shaft extending into and rotatably supported by said housing; an orbiting scroll member positioned in said housing and coupled to said drive shaft by an eccentric bushing; a fixed scroll member mounted in said housing adjacent said orbiting scroll member; a ball coupling mechanism connected between said orbiting scroll member and said housing, said ball coupling mechanism having a fixed ball coupling ring, an orbiting coupling ring, and a plurality of balls trapped between said rings; a counterweight assembly mounted on said drive shaft; and a plurality of plates connected to one of said drive shaft and said counterweight assembly, a portion of at least one of said plates extending into said counterweight cavity, whereby during assembly of the compressor, a misplaced ball is supported by said portion of at least one of said plates to prevent proper assembly of said orbiting scroll member in said housing.