US Patent 7155928 Refrigerating apparatus

In a refrigerating apparatus in which a plurality of application-side heat exchangers (41, 45, 51) are connected to a heat-source side heat exchanger (4), liquid lines for a plurality of channels in a refrigerant circuit (1E) share a liquid side communication pipe (11) in order to reduce the number of pipes. Further, the liquid side communication pipe (11) is provided adjacent to a low-pressure gas side communication pipe (15) for at least one channel so as to contact it in order to supercool a liquid refrigerant by a low-pressure gas refrigerant. Thus, workability for connecting the pipes is improved and a refrigerating ability may not be decreased even if communication pipes (11, 15, 17) become long.