MODE OF COOLING GAS Russian patent published in 2006 - IPC F25B9/00 

FIELD: the invention refers to refrigerating technique.

SUBSTANCE: the mode of cooling gas includes periodic excitation of compression wave in the working chamber filled with residue gas under pressure P_oc introducing a portion of gas under high pressure. After completion of the compression phase of the residue gas in the working chamber feeding of gas under high pressure is stopped and discharge of the heated residue gas is executed out of the working chamber into the first additional chamber filled with gas under pressure in 2-7 times less than P_oc. After completion of the cross-over of all heated residue gas the working chamber is isolated from the first additional chamber and adiabatic expansion is made of the gas remained in the working chamber with following pushing out of the portion of the cooled gas into the line of withdrawing of the gas under low pressure out of the second additional chamber in which gas pressure is 1,5-2 times exceeds P_oc.

EFFECT: the invention allows to reduce energy consumption at cooling gas.

1 cl, 1 dwg