Patent
Refrigerating cycle device
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TLDR
In this article, a refrigerating cycle device using carbon dioxide as a refrigerant capable of solving the problem that when a receiver is installed against a low pressure, a cost and a volume are increased by a pressure resistant design to assure safety.Abstract:
A refrigerating cycle device using carbon dioxide as refrigerant capable of solving such a problem that when a receiver is installed against a low pressure, a cost and a volume are increased by a pressure resistant design to assure safety, wherein a first pressure reducing device (12) and a second pressure reducing device (15) are operated to vary the refrigerant pressure of a first heat exchanger (13) so as to regulate the refrigerant hold amount of the first heat exchanger, whereby since the unbalance of the amount of refrigerant between cooling and heating/dehumidifying can be reduced, the refrigerating cycle device can be efficiently operated with a downsized receiver or without installing the receiver.read more
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References
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Patent
Compositions containing fluorine substituted olefins
Hang T. Pham,Rajiv R. Singh +1 more
TL;DR: The use of tetrafluoropropenes (HFO-1234) in a variety of applications, including refrigeration equipment, is disclosed in this paper, where they are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.
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TL;DR: In this paper, a heat pump cycle includes a compressor having a suction port and a discharge port, a heating heat exchanger which heats air, a gas-liquid separator, and a cooling heat exchange which cools air upstream of the heating heat exchange in an air flow direction.
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Patent
Refrigerating air-conditioner
TL;DR: In this paper, an air-conditioner provided with a plurality of compressors connected in parallel each other and having suction pipes 82a-82d, and an oil separator 11 for separating gaseous refrigerant from a refrigerator oil and used in common for the compressors a-d, is provided with oil returning means 51, 51a-51d for oil-returning the refrigerator oil separated by the separator, and contraction mechanisms 53a-53a for regulating a turn-back amount of the oil to an amount required for each of the compress
Patent
Heat pump type water heater
Fujiwara Nobuhiko,Kondo Ryuta,Kunimoto Keijiro,Kazuhiko Marumoto,Tatsumura Mo,Ohama Masahiro,Ono Hideki,Takayuki Takatani,Watanabe Takeji,Seiichi Yasuki,一彦 丸本,啓次郎 國本,英樹 大野,誠一 安木,昌宏 尾浜,立群 毛,竹司 渡辺,宣彦 藤原,龍太 近藤,隆幸 高谷 +19 more
TL;DR: In this paper, the authors proposed a heat pump type water heater, which includes a hot water delivery pipe 18, an intermediate hot water delivering pipe 21 and a water supply pipe connected to the upper part, the intermediate part, and the lower part, respectively, of the hot water storage tank.