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    • 19. 发明申请
    • EXPANSION VALVE
    • 膨胀阀
    • US20130206851A1
    • 2013-08-15
    • US13761538
    • 2013-02-07
    • Kabushiki Kaisha Saginomiya Seisakusho
    • Hideki SEKIGUCHI
    • F25B41/04
    • F25B41/043F16K31/04F25B41/062F25B2341/061F25B2341/065F25B2341/0653Y02B30/72
    • There is provided an expansion valve which, by moving the sub-valve in a valve housing, controls the flow rate of a refrigerant in a first flow direction and releases the refrigerant to flow in a second flow direction, wherein the sub-valve is reduced in weight and a valve port is provided with high accuracy. The sub-valve includes a guide member formed by press work and a valve seat member formed by cutting. The sub-valve is seated on a sub-valve seat of a valve seat ring when the pressure in a main valve chamber is high, and is moved away from the sub-valve seat when the pressure in the main valve chamber is low. The sub-valve is reduced in weight by forming the guide member by press work, and the valve port is formed with improved accuracy by forming the valve seat member by cutting.
    • 提供了一种膨胀阀,其通过使阀壳中的副阀移动来控制制冷剂在第一流动方向上的流量并释放制冷剂沿第二流动方向流动,其中副阀减小 重量和阀口具有高精度。 副阀包括通过冲压加工形成的引导构件和通过切割形成的阀座构件。 当主阀室中的压力高时,副阀安装在阀座环的副阀座上,并且当主阀室中的压力低时,子阀被移动离开副阀座。 通过冲压加工形成导向部件,副阀减重,通过切割形成阀座部件,能够提高阀口的精度。
    • 20. 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。