Patent ID: 6817206
Filing Date: 2004-11-16
Classification: F24F,F25B

Abstract:
An air conditioning apparatus for controlling properties of air in an isolated space, said apparatus comprising;A. a cooling enclosure having an inlet side, an interior, and an outlet side, B. a fan for moving air from said inlet side through said interior to said outlet side of said enclosure, C. an evaporative cooler within said interior of said enclosure, D. at least one spray nozzle connected to a water inlet conduit for supplying water to said evaporative cooler, E. a drip tray for collecting water issuing from said evaporative cooler which does not evaporate, F. a water outlet conduit for discharging said collected water to a location exterior to said isolated space, and G. at least a first refrigeration apparatus for refrigerating air flowing through said enclosure, said first refrigeration apparatus including; I. a refrigerant compressor charged with a refrigerant, II. at least a first refrigerant-to-water heat exchanger/condenser which includes a housing that has a pressurized refrigerant inlet coupling connected by a refrigerant input line to a pressurized outlet port of said compressor, a length of coiled tubing within a chamber inside said housing coupled at a first end to said refrigerant inlet coupling and at a second end thereof to a refrigerant outlet coupling, a water inlet port and a water outlet port which both communicate with said housing chamber, a water source inlet tube connected to said water inlet port, and a water discharge tube connected to said water outlet port, and III. a first refrigerant evaporator located within said cooling enclosure spaced longitudinally apart from said evaporative cooler, said evaporator having a serpentinely curved refrigerant flow path having an evaporator inlet port coupled through a pressurized refrigerant supply line to said outlet coupling of said condenser, said evaporator flow path having a larger flow cross section than that of said pressurized refrigerant supply line, and an evaporator outlet port coupled through a low pressure outlet suction line to a suction inlet port of said compressor. 2.The air conditioning apparatus of claim 1 wherein said water outlet conduit is further described as connecting to a drain location exterior to said isolated space.