AIR CONDITIONER

• Main Author: INOUE TSUNETOSHI
• Format: Patent
• Language: English
• Published: 25.05.1992
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

PURPOSE:To avoid an undesired stop of operation by detecting the temperature of a discharged refrigerant or a sucked refrigerant of a compressor, by control ling the opening of an electric flow regulating valve in accordance with the result of detection and by lowering the capacity of the compressor, when the opening of the electric flow regulating valve exceeds a set value. CONSTITUTION:A temperature sensor 47 is fitted to a discharge-side piping between a discharge port of a compressor l and an oil separator 41, and a temperature sensor 48 is fitted to a discharge-side piping between a discharge port of a compressor 2 and an oil separator 43, while a temperature sensor 49 is fitted to a suction-side piping connected to suction ports of the compressors 1 and 2. The temperature of a discharged refrigerant or a sucked refrigerant of the compressors 1 and 2 is detected by the temperature sensors 47 to 49, and a control element controls the opening of an electric flow regulating valve 46 of a cooling bypass in accordance with the detected temperature and lowers the capacities of the compressors 1 and 2 when the opening of the electric flow regulating valve 46 exceeds a set value Thereby an undesired stop of operation can be avoided.