Patent ID: 6564565
Filing Date: 2003-05-20
Classification: F25B,Y02B

Abstract:
An air conditioning system comprising:a compression section employing at least two compressors and an accumulator, wherein said at least two compressors transform a gas refrigerant of low temperature and low pressure into a gas refrigerant of high temperature and high pressure and enable an operation capacity of the compression section to be changed according to a refrigeration load; a condensing section for transforming the gas refrigerant of high temperature and high pressure, which has been compressed in the compression section, into a liquid refrigerant of intermediate temperature and high pressure; an expansion section employing an electronic expansion valve, which properly expands the liquid refrigerant of intermediate temperature and high pressure, which has been produced in the condensing section, to be transformed into a liquid refrigerant of low temperature and low pressure; an evaporation section having an evaporator for transforming the liquid refrigerant of low temperature and low pressure produced in the expansion section into a gas refrigerant of low temperature and low pressure; temperature sensors being provided at an inlet port of said accumulator of the compression section and at an outlet port of said evaporator of the evaporation section; and a control section for controlling the electronic expansion valve according to a result after dealing with sensed temperatures inputted from the temperature sensors.