Patent ID: 6948327
Filing Date: 2005-09-27
Classification: A23G,F25B

Abstract:
1. A refrigeration system comprising: a compression device to compress a refrigerant to a high pressure, said compression device including a compressor suction and a compressor discharge; a heat rejecting heat exchanger for cooling said refrigerant; a first cylinder expansion device for expanding a first portion of said refrigerant to a first cylinder low pressure; a first cylinder heat exchanger, said first portion of said refrigerant from said first cylinder expansion device exchanging heat with a first mix in said first cylinder heat exchanger; a second cylinder expansion device for expanding a second portion of said refrigerant to a second cylinder low pressure; a second cylinder heat exchanger, said second portion of said refrigerant from said second cylinder expansion device exchanging heat with a second mix in said second cylinder heat exchanger; a hopper expansion device for expanding a third portion of said refrigerant to a hopper low pressure; a first hopper heat exchanger, a portion of said third portion of said refrigerant from said hopper expansion device exchanging heat with said first mix in said first hopper heat exchanger; and a second hopper heat exchanger, a remainder of said third portion of said refrigerant from said hopper expansion device exchanging heat with said second mix in said second hopper heat exchanger.