Scroll expressor
AssigneeCarrier Corporation
InventorsYan Tang, James W. Bush
Life of this patent
Estimating the term…
Abstract
A scroll expresser of a refrigerant system includes a non-orbiting expander scroll plate and an orbiting expander scroll plate which form a plurality of expansion chambers and a non-orbiting compressor scroll plate and a orbiting compressor scroll plate which form a plurality of compression chambers. The scroll expresser expands high pressure refrigerant in the expansion chambers to low pressure vapor refrigerant and liquid refrigerant. The liquid refrigerant exits the scroll expresser for evaporation. The vapor refrigerant is compressed in the compression chambers and mixes with the refrigerant exiting the compressor. Alternatively, the orbiting scroll plates are integrated into one component.
Claims20
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
- 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.
A refrigeration system comprising:
- a first compression device having an outlet to compress a refrigerant to a first high pressure;
- a heat rejecting heat exchanger for cooling said refrigerant;
- a scroll expressor including 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 to expand said refrigerant to a low pressure liquid refrigerant and a low pressure vapor refrigerant, said low pressure liquid refrigerant exits said expansion device through a low pressure outlet and a portion of said low pressure vapor refrigerant exits said expansion device through said low pressure outlet, and a second 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 to compress a remainder of said low pressure vapor refrigerant to a second high pressure which exits said compression device through a high pressure outlet;
- a path leading from said high pressure outlet of said scroll expressor to mix said second high pressure refrigerant with said first high pressure refrigerant exiting said first compressor;
- a heat accepting heat exchanger for evaporating said low pressure liquid refrigerant exiting said expansion device of said scroll expressor.
Dependencies are inferred from the claim text.