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    • 6. 发明授权
    • Expansion valve, heat pump type refrigeration cycle apparatus, and air handling unit
    • 膨胀阀,热泵式制冷循环装置和空气处理单元
    • US08157183B2
    • 2012-04-17
    • US12402134
    • 2009-03-11
    • Takahito HayashiHideki SekiguchiYutaka Kaneko
    • Takahito HayashiHideki SekiguchiYutaka Kaneko
    • F25B41/04F25B41/06
    • F25B41/062F25B13/00F25B2341/0652Y02B30/72
    • A first expansion valve is provided in an outdoor unit, and a second expansion valve is provided in an indoor unit. A pipe line connects a first joint pipe of the first expansion valve and a second joint pipe of the second expansion valve. When a refrigerant flows in from the second joint pipe and flows out from the first joint pipe, the first and second expansion valves are in a full open state due to pressure of the refrigerant. When the refrigerant flows in from the first joint pipe and flows out from the second joint pipe, the first and second expansion valves are in semi-closed state (flow rate controlling state). In a cooling mode, the second expansion valve expands the refrigerant just before an indoor heat exchanger, and in a heating mode, the first expansion valve expands the refrigerant just before an outdoor heat exchanger. In both heating and cooling mode, a large amount of refrigerant flows through the pipe line to reduce pressure loss.
    • 第一膨胀阀设置在室外机中,第二膨胀阀设置在室内机。 管路连接第一膨胀阀的第一接头管和第二膨胀阀的第二接头管。 当制冷剂从第二关节管流入并从第一关节管流出时,第一和第二膨胀阀由于制冷剂的压力而处于全开状态。 当制冷剂从第一关节管流入并从第二关节管流出时,第一和第二膨胀阀处于半闭合状态(流量控制状态)。 在冷却模式中,第二膨胀阀刚好在室内热交换器之前膨胀制冷剂,并且在加热模式下,第一膨胀阀在室外热交换器之前膨胀制冷剂。 在加热和冷却两种模式下,大量制冷剂流过管道,以减少压力损失。
    • 7. 发明申请
    • EXPANSION VALVE, HEAT PUMP TYPE REFRIGERATION CYCLE APPARATUS, AND AIR HANDLING UNIT
    • 膨胀阀,热泵式制冷循环装置和空气处理装置
    • US20090293520A1
    • 2009-12-03
    • US12402134
    • 2009-03-11
    • Takahito HayashiHideki SekiguchiYutaka Kaneko
    • Takahito HayashiHideki SekiguchiYutaka Kaneko
    • F25B41/04F25B13/00
    • F25B41/062F25B13/00F25B2341/0652Y02B30/72
    • A first expansion valve is provided in an outdoor unit, and a second expansion valve is provided in an indoor unit. A pipe line connects a first joint pipe of the first expansion valve and a second joint pipe of the second expansion valve. When a refrigerant flows in from the second joint pipe and flows out from the first joint pipe, the first and second expansion valves are in a full open state due to pressure of the refrigerant. When the refrigerant flows in from the first joint pipe and flows out from the second joint pipe, the first and second expansion valves are in semi-closed state (flow rate controlling state). In a cooling mode, the second expansion valve expands the refrigerant just before an indoor heat exchanger, and in a heating mode, the first expansion valve expands the refrigerant just before an outdoor heat exchanger. In both heating and cooling mode, a large amount of refrigerant flows through the pipe line to reduce pressure loss.
    • 第一膨胀阀设置在室外机中,第二膨胀阀设置在室内机。 管路连接第一膨胀阀的第一接头管和第二膨胀阀的第二接头管。 当制冷剂从第二关节管流入并从第一关节管流出时,第一和第二膨胀阀由于制冷剂的压力而处于全开状态。 当制冷剂从第一关节管流入并从第二关节管流出时,第一和第二膨胀阀处于半闭合状态(流量控制状态)。 在冷却模式中,第二膨胀阀刚好在室内热交换器之前膨胀制冷剂,并且在加热模式下,第一膨胀阀在室外热交换器之前膨胀制冷剂。 在加热和冷却两种模式下,大量制冷剂流过管道,以减少压力损失。