ATBECHDEDKESFRGBGRITLILUNLSEMCPTIESILTLVFIROMKCYALTRBGCZEEHUPLSKBAHRIS..MT..RS......................JDIM360 Ver 2.15 (14 Jul 2008) - 1620000/01921399EUROPEAN PATENT APPLICATIONA320100310EP07254445.520071113enenen858624 P20061113US2010031020101020080514200820F25B 1/10 20060101AFI20080307BHEP F25B 5/02 20060101ALI20080307BHEP F25B 7/00 20060101ALI20080307BHEP F25B 9/00 20060101ALI20080307BHEP F25B 25/00 20060101ALN20080307BHEP F25B 40/00 20060101ALN20080307BHEP F25B 43/00 20060101ALN20080307BHEP deZweistufiges transkritisches KühlsystemenTwo stage transcritical refrigeration systemfrSystème de réfrigération transcritique à deux étapes2aHussmann Corporation01048121MH/P005973PEP12999 St. Charles Rock RoadBridgeton Missouri 63044-4283USShapiro, Doron7410 Weil AvenueSt. Louis, MO 63119USHolmes, Matthew Peteret al00077161Marks & Clerk LLP Sussex House83-85 Mosley Street Manchester M2 3LGGBATBEBGCHCYCZDEDKEEESFIFRGBGRHUIEISITLILTLULVMCMTNLPLPTROSESISKTRALBAHRMKRS20100310201010

The invention provides a refrigeration system (100) including a plurality of refrigerated display cases (115). Each display case has a dedicated evaporator assembly (165) that cools return air by evaporating a refrigerant, and a first stage compressor assembly (120) that is in fluid communication with the respective evaporator assembly to compress the refrigerant to a first pressure corresponding to a first temperature of the refrigerant prior to discharge of the compressed refrigerant. The refrigeration system also includes a second stage compressor assembly (125) that is in fluid communication with the first stage compressor assemblies (120) to compress the refrigerant to a second pressure that is higher than the first pressure, and that corresponds to a second temperature of the refrigerant. The refrigeration system (100) further includes a heat exchanger (130) that is in fluid communication with the second stage compressor assembly (125) to receive the refrigerant from the second stage compressor assembly to reject heat from the refrigerant.