Patent ID: 6113372
Filing Date: 2000-09-05
Classification: F04C

Abstract:
A scroll compressor comprising:a first scroll having a base and a spiral wrap extending from said base;a second scroll having a base and a spiral wrap extending from said base, said wraps of said first and second scrolls interfitting, said second scroll being driven for orbital movement relevant to said first scroll such that said wraps of said first and second scroll cyclically interact with each other to define seal points separating compression chambers, movement of said second scroll wrap moving said compression chambers inwardly to communicate with a central discharge port, at least two of said compression chambers being moved toward said discharge port concurrently, said at least two compression chambers eventually communicating with each other and said discharge port; anda discharge porting groove formed in at least one of said first and second scrolls, wherein an end of the groove communicates with said discharge port and a portion of said grooves selectively communicate with one or both of said compression chambers at a location just before said one or both of said compression chambers begins to communicate with said discharge port.