Patent ID: 6224356
Filing Date: 2001-05-01
Classification: F04C,Y10T

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 spiral wraps of said first and second scroll members interfitting to define compression chambers;a shaft for causing said second scroll member to orbit relative to said first scroll member;a discharge port formed through said base of said first scroll member at a generally central location;a valve assembly positioned adjacent said discharge port, said valve assembly incorporating a valve stop, and a floating valve for selectively closing said discharge port;said valve assembly further including discharge passages for communicating with said discharge port and communicating a compressed fluid to a discharge plenum when said second scroll member is orbiting in a first direction, said floating valve plate abutting said valve stop, and said discharge passages being positioned radially outwardly of said valve stop body; andreturn passages extending through said valve stop at an angle which is non-parallel to a central axis of said shaft, said return passages communicating a pressurized fluid to a rear face of said valve plate, such that said valve plate moves quickly to close said discharge port when said compressor stops rotating in said first direction.