REFRIGERATION CYCLE DEVICE

• Main Authors: KONO HIROAKI, KATO YOSHITAKE, ISSHI YOSHINORI, MUTO NAITO, IJUIN YUKIHISA, HIRAYAMA JUNKI, YOKOO YASUHIRO, HAYASHI YOSHIO
• Format: Patent
• Language: English; Japanese
• Published: 07.02.2023
• 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

To provide a refrigeration cycle device capable of suppressing the closure of a cycle.SOLUTION: The refrigeration cycle device includes a compressor 11 for compressing and discharging refrigerant, a condenser 12 for making heat exchange between the refrigerant discharged from the compressor 11 and outside air, an expansion valve 14 for reducing the pressure of the refrigerant flowing out of the condenser 12, a vaporizer 15 for vaporizing the refrigerant flowing out of the expansion valve 14 to cool the air to be blown into a cabin, and a control device 60 for increasing the throttle opening of the expansion valve 14 when a temperature difference ΔT between a heat exchange fin temperature Tefin of the vaporizer 15 and a saturation temperature Tsat of the refrigerant in the vaporizer 15 is a prefixed reference temperature difference α1 or higher.SELECTED DRAWING: Figure 1 【課題】サイクルが閉塞することを抑制できる冷凍サイクル装置を提供する。【解決手段】冷媒を圧縮して吐出する圧縮機１１と、圧縮機１１から吐出された吐出冷媒と外気とを熱交換させる凝縮器１２と、凝縮器１２から流出した冷媒を減圧させる膨張弁１４と、膨張弁１４から流出した冷媒を蒸発させて車室内へ送風される空気を冷却する蒸発器１５と、蒸発器１５の熱交換フィン温度Ｔｅｆｉｎと蒸発器１５における冷媒の飽和温度Ｔｓａｔとの温度差ΔＴが予め定めた基準温度差α１以上になった際に、膨張弁１４の絞り開度を増加させる制御装置６０と、を備える。【選択図】図１