PULSATING REFRIGERATING MACHINE Russian patent published in 2008 - IPC F25B9/00 

FIELD: refrigerating and cryogenic engineering.

SUBSTANCE: pulsating refrigerating machine comprises hollow housing with supplying and discharging branch pipes and pulsating pipe bank. Each pipe is connected with the housing space from one of the faces. Each of the main receivers is connected with the free face of the corresponding pulsating tube. The housing receives slide valve for permitting rotation for alternating connection with each pulsating pipe with supplying and discharging branch pipes. The slide valve is mounted with a minimum spaced relation to the housing from the side of its face, faces the pulsating pipes, and has a nozzle for supplying compressed gas to the pulsating pipes and port for discharging gas from pulsating pipes. The main pipeline for discharging leakage of compressed gas from the axial space is provided with a throttle. Each main receiver is connected with an additional receiver, and each additional receiver is connected with the main pipeline for discharging leakage of compressed gas downstream of the throttle. The slide valve is provided with a ring sealing member that overlaps the zone of nozzles and ports from the side that faces the housing. Opposite each nozzle and port is opening for free flowing of gas from the nozzle.

EFFECT: enhanced efficiency.

12 cl, 5 dwg