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1. 发明授权

US08978402B2 Heat pump apparatus 有权
标题翻译：热泵设备
公开(公告)号：US08978402B2
公开(公告)日：2015-03-17
申请号：US12890199
申请日：2010-09-24
申请人： Atsushi Itagaki , Takashi Sugiyama , Toshiyuki Fuji , Hiroshi Abiko
发明人： Atsushi Itagaki , Takashi Sugiyama , Toshiyuki Fuji , Hiroshi Abiko
IPC分类号： F25B41/04 , F25B30/02 , F25B49/02
CPC分类号： F25B30/02 , F25B49/02 , F25B2339/047 , F25B2600/21 , F25B2600/2513 , F25B2700/171 , F25B2700/1931 , F25B2700/21161 , F25B2700/21174
摘要： A heat pump apparatus includes: a refrigerant circuit which includes a compressor, a utilization-side heat exchanger for exchanging heat between water and refrigerant, an electronic expansion valve, and an outdoor heat exchanger; a controller which controls the compressor and the electronic expansion valve; a subcooling value calculating unit which calculates a subcooling value of the refrigerant circuit; a condensing pressure detector which detects condensing pressure of the compressor; a compressor rotation number detector which detects rotation number of the compressor; and an objective subcooling value extracting unit which selects and extracting an objective subcooling value stored in advance, from the condensing pressure and the rotation number of the compressor. The controller adjusts an opening degree of the electronic expansion valve so that the calculated subcooling value of the refrigerant circuit reaches the objective subcooling value.
摘要翻译：一种热泵装置，包括：制冷剂回路，包括压缩机，用于在水和制冷剂之间交换热量的利用侧热交换器，电子膨胀阀和室外热交换器; 控制压缩机和电子膨胀阀的控制器; 过冷值计算单元，其计算制冷剂回路的过冷值; 冷凝压力检测器，其检测压缩机的冷凝压力; 压缩机转数检测器，其检测压缩机的转速; 以及客观过冷值提取单元，从所述冷凝压力和所述压缩机的转速来选择预先存储的目标过冷值。控制器调节电子膨胀阀的开度，使得计算出的制冷剂回路的过冷值达到目标过冷值。

2. 发明授权

US09003819B2 Heat pump apparatus using supercooling degree to control expansion valve 有权
标题翻译：热泵装置采用过冷度控制膨胀阀
公开(公告)号：US09003819B2
公开(公告)日：2015-04-14
申请号：US12890270
申请日：2010-09-24
申请人： Atsushi Itagaki , Takashi Sugiyama , Toshiyuki Fuji
发明人： Atsushi Itagaki , Takashi Sugiyama , Toshiyuki Fuji
IPC分类号： F25B41/04 , F25B13/00 , F24D3/18 , F25B31/00
CPC分类号： F25B13/00 , F24D3/18 , F25B31/008 , F25B2313/02741 , F25B2313/0314 , F25B2313/0315 , F25B2339/047 , F25B2400/13 , F25B2600/0253 , F25B2600/13 , F25B2600/19 , F25B2600/2509 , F25B2600/2513 , F25B2700/195 , F25B2700/21 , F25B2700/2106 , F25B2700/21152 , Y02B30/741 , Y02B30/745
摘要： A heat pump apparatus includes: a refrigerant circuit which includes a compressor, an utilization-side heat exchanger, a first expansion valve, and an outdoor heat exchanger; an injection pipe which includes a solenoid switching valve and a second expansion valve; and an objective supercooling degree table which stores objective supercooling degrees according to condensing pressure in the refrigerant circuit and rotation number of the compressor. In the heat pump apparatus, liquid refrigerant is injected to the compressor by way of the injection pipe. The heat pump apparatus switches between a first case where the liquid refrigerant is injected to the compressor and a second case where the liquid refrigerant is not injected, and a value of the objective supercooling degree is changed between the first case and the second case to control the first expansion valve based on the value of the objective supercooling degree.
摘要翻译：热泵装置包括：制冷剂回路，包括压缩机，利用侧热交换器，第一膨胀阀和室外热交换器; 注射管，其包括电磁换向阀和第二膨胀阀; 以及客观过冷度表，其存储根据制冷剂回路中的冷凝压力和压缩机的转速的目标过冷度。在热泵装置中，液体制冷剂通过喷射管被喷射到压缩机。热泵装置在将液体制冷剂喷射到压缩机的第一壳体和不喷射液体制冷剂的第二壳体之间切换，并且在第一壳体和第二壳体之间改变目标过冷度值，以控制第一个膨胀阀基于客观过冷度的值。

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