REFRIGERATING CYCLE

• Main Author: OTA HIROMI
• Format: Patent
• Language: English
• Published: 22.06.2006
• Subjects: ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To enable sensing high pressure at the time of cooling and heating using a single pressure sensor and secure both the heat resistance of the pressure sensor and the cooling performance and heating performance compatibly. SOLUTION: A supercritical refrigerating cycle which is equipped with a four-way valve 4 to change over between the heating mode and the cooling mode and in which the high pressure becomes equal to or above the critical pressure of the refrigerant, is furnished with a water refrigerant heat-exchanger 3 to serve at all times as a refrigerant radiator on the high pressure side where the discharged refrigerant of a compressor 1 flows in between the discharge side of the compressor 1 and the four-way valve 4, wherein that part of the water refrigerant heat-exchanger 3 which becomes at a lower temperature than the temperature of the discharged refrigerant from the compressor is fitted with the pressure sensor 21 to sense the high pressure. COPYRIGHT: (C)2006,JPO&NCIPI