REFRIGERATION CYCLE DEVICE

• Main Authors: YANACHI, Satoru, GYOTOKU, Shunya
• Format: Patent
• Language: English; French; German
• Published: 08.03.2023
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; COMBINED HEATING AND REFRIGERATION SYSTEMS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

A refrigeration cycle apparatus (1000) comprises a refrigerant circuit in which refrigerant circulates, the refrigerant circuit comprising a compressor (1), a flow path switching portion (2), an outdoor heat exchanger (3), a decompressing apparatus (4A, 4B), a first indoor heat exchanger (5A), a first connecting pipe (10), and a second connecting pipe (11). The refrigerant circuit further comprises: a first three-way valve (8A) arranged downstream of the first indoor heat exchanger in a cooling operation state and arranged upstream of the first indoor heat exchanger in a heating operation state; and a second three-way valve (9A) arranged upstream of the first indoor heat exchanger in the cooling operation state and arranged downstream of the first indoor heat exchanger in the heating operation state. A first aperture (P1) of each of the first three-way valve and the second three-way valve is connected to one end or the other end of the first indoor heat exchanger in the refrigerant circuit. A second aperture (P2) of each of the first three-way valve and the second three-way valve is connected to the first connecting pipe. A third aperture (P3) of each of the first three-way valve and the second three-way valve is connected to the second connecting pipe. Each of the first three-way valve and the second three-way valve is configured to be switched independently to one of a first state in which the valve body (15) is located at a first position, a second state in which the valve body is located at a second position, and a third state in which the valve body is located at a third position. In the first state, a first space (S1) is arranged in the valve chamber (16), the first space (S1) communicating with the first aperture and the second aperture and being separated from the third aperture. In the second state, a second space (S2) is arranged in the valve chamber, the second space (S2) communicating with the first aperture, the second aperture, and the third aperture. In the third state, a third space (S3) is arranged in the valve chamber, the third space (S3) communicating with the first aperture and the third aperture and being separated from the second aperture.