It includes a shell, a blowing gas opening in the middle of the shell, a sucking gas opening on the circumference of the shell.

It has two throttling steps, e.g. two capillary tubes separated by a suction-gas heat exchanger.

The invention is characterized in that the compressor or the air-conditioning system, in the suction pressure area (1, 2, 3, 4, 5, 6), comprises a suction gas throttle and the compressor (10) is a fixed displacement compressor.

The resistive muffler (50, 250, 350) is assembled inline with the suction gas flow of the compressor and is positioned within the compressor housing (16).

Provided is an oil-cooled type screw compressor having a compressor body for compressing a suction gas and discharging the compressed gas.

A device for normalising the suction gas flow is provided in the distribution pipe upstream of the bypass pipes (7).

These chambers (31 and 36) prevent heat exchange by the suction gases at pressures exceeding 10-2Pa, respectively, between the casing (1) and the radiation screen and between the first and the last suction elements.

The suction gas cooling components include an expansion valve (18), a filter drier (20), a solenoid valve (22), and a mixer with sensor (24).

The cooling components serve to lower the temperature of heat-intensive suction gases before entering into the low pressure compressor.

Each of the plurality of process spaces is in fluidic communication with one or more of a plurality of draw gas injection chambers.

The amount of suction gas is increased by the pressure difference, and bubbles having a diameter larger than the diameter of minute bubbles are generated.

When the quantity of water begins to decrease in the period (T2), the amount of suction gas begins to increase thus generating a large pressure difference.