Patent ID: 6658866
Filing Date: 2003-12-09
Classification: F04C,F25B

Abstract:
A scroll expressor comprising:an expansion device including a non-orbiting expander scroll member including a base and a generally spiral wrap extending from said base and an orbiting expander scroll member including a base and a generally spiral wrap extending from said base, said generally spiral wrap of said non-orbiting and orbiting expander scroll members interfitting to define a plurality of expansion chambers, and said expansion device expands a refrigerant to a low pressure; and a compression device including a non-orbiting compressor scroll member including a base and a generally spiral wrap extending from said base and an orbiting compressor scroll member including a base and a generally spiral wrap extending from said base, said generally spiral wrap of said non-orbiting and orbiting compressor scroll members interfitting to define a plurality of compression chambers, and said compression device compresses a first portion of said low pressure refrigerant to a high pressure refrigerant.