Patent ID: 6430959
Filing Date: 2002-08-13
Classification: F04C,F25B

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 its base, said second scroll member being driven to orbit relative to said first scroll member and said wraps of said first and second scroll members interfitting to define compression chambers; and an economizer passage communicating an economizer fluid into a housing for said scroll compressor, said economizer passage communicating with a supply passage in one of said first and second scroll members, said supply passage communicating with at least one injection port, said injection port forme d to extend through said wrap of said one of said first and second scroll members, and the other of said first and second scroll members being formed with at least one groove in said base to be selectively aligned with said injection port as said second scroll member orbits relative to said first scroll member to control the injection of economized fluid into said compression chambers.