Patent ID: 6089839
Filing Date: 2000-07-18
Classification: F04C

Abstract:
A scroll compressor comprising:a non-orbiting scroll having a base and a spiral wrap extending from said base;an orbiting scroll having a base and a spiral wrap extending from said base, said spiral wrap of said orbiting scroll interfitting with said spiral wrap of said non-orbiting scroll to define compression chambers, said orbiting scroll moving through an orbiting cycle relative to said non-orbiting scroll, said orbiting scroll wrap moving into and out of contact with said non-orbiting scroll wrap at an outer seal point such that compression chambers between said non-orbiting and orbiting scroll wrap are alternately opened and sealed, to entrap and seal a previously opened compression chamber;an inner seal point of contact defining an inner end of said compression chambers; andat least one economizer port communicating with a source of fluid and extending through said base of one of said non-orbiting and orbiting scrolls to communicate with said compression chambers, said economizer port being positioned such that it communicates with said compression chamber prior to said orbiting scroll wrap coming into contact with said non-orbiting scroll wrap at said outer seal point.