(57) Theme : A cooling cycle for a twin air conditioning system which provide with a structure
that eliminates the disadvantage arising from providing expansion devices with different
control systems on each evaporator, thereby holding down manufacturing costs and eliminating
or simplifying the work of tuning the system.
Means of Resolution : A structure having compressor 2 which raises the pressure of
the coolant to beyond the supercritical pressure, radiator 3 which cools the coolant
which has been pressurized by compressor 2, expansion device 4 which reduces the pressure
of the coolant flowing from the radiator so that the pressure on the outlet side of
the radiator is held to a prescribed pressure determined by the temperature of the
coolant on the outlet side of the radiator, first and second evaporators 5, 6 which
evaporate coolant whose pressure has been reduced in expansion device 4, and a flow
regulator means (flow regulator valve 7) which regulates the quantity of coolant supplied
to evaporators 5, 6 respectively.
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