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    • 6. 发明授权
    • Refrigeration cycle
    • 制冷循环
    • US6006544A
    • 1999-12-28
    • US122590
    • 1998-07-27
    • Yukio WatanabeHisao WakabayashiHironao NumotoShinji WatanabeAkira FujitakaKanji HanedaYoshinori KobayashiYuichi YakumaruNarito Yamaguchi
    • Yukio WatanabeHisao WakabayashiHironao NumotoShinji WatanabeAkira FujitakaKanji HanedaYoshinori KobayashiYuichi YakumaruNarito Yamaguchi
    • F25B41/06
    • F25B41/067
    • A refrigeration cycle that controls the deposit of foreign matter at inlet or outlet of a capillary tube, which forms an expansion device in the refrigeration, regardless of changeover from a cooling operation to a heating operation. In particular, in a refrigeration cycle using an alternative refrigerant, a junction is provided for joining an end of a capillary tube forming an expansion device to the piping through which the refrigerant flows. The junction has a slope defined by the inside diameter thereof, which gradually decreases from the side of the junction that joins the piping to the side of the junction that joined the capillary tube. An end portion of the capillary tube projects into the junction at the piping side. The projecting end of the capillary tube is opened obliquely to the axial line of the capillary tube. A hole is formed in the peripheral wall of the projecting end of the capillary tube. According to such an arrangement, foreign matter in the refrigerant is forced to be deposited in portions of the refrigerant cycle other than the capillary tube and prevented from clogging the capillary tube.
    • 控制在毛细管的入口或出口处异物沉积的制冷循环,其形成制冷中的膨胀装置,而不管从冷却操作转换到加热操作。 特别地,在使用替代制冷剂的制冷循环中,设置有用于将形成膨胀装置的毛细管的端部与制冷剂流过的管道接合的连接点。 接头具有由其内径限定的斜面,其从连接管道的一侧到连接毛细管的接合部的侧面逐渐减小。 毛细管的端部突出到管道侧的接合处。 毛细管的突出端与毛细管的轴线倾斜地打开。 在毛细管的突出端的周壁形成有孔。 根据这样的结构,制冷剂中的异物被迫在除了毛细管以外的制冷剂循环的部分中沉积,并且防止毛细管堵塞。
    • 8. 发明授权
    • Air conditioner
    • 冷气机
    • US6085531A
    • 2000-07-11
    • US280688
    • 1999-03-30
    • Hironao NumotoJiro SuzukiAkira Fujitaka
    • Hironao NumotoJiro SuzukiAkira Fujitaka
    • F24F11/02F24F11/00F25B49/00F25B45/00
    • F25B49/005F24F11/0086F24F2011/0091F25B2400/12F25B2500/222
    • In a refrigeration cycle using a flammable refrigerant as a refrigerant and comprising an indoor heat exchanger, an outdoor heat exchanger, a compressor and an expansion device which are annularly connected to one another through pipes, the refrigeration cycle is provided with a gas sensor and a refrigerant discharge portion, the gas sensor monitors leakage of the refrigerant from the refrigeration cycle to outside, and after the leakage is detected by the gas sensor, the discharge portion is opened to discharge the refrigerant to outside. At that time, the gas sensor is disposed inside a room, and the discharge portion is disposed outside the room. Further, the discharge portion is provided with a fan to facilitate the dispersion of the refrigerant. Further, the discharge portion is provided with a burner portion to discharge out the refrigerant while burning the refrigerant. With the above structure, the leakage of a flammable refrigerant is monitored, and after the leakage is detected, the refrigerant is positively discharged to the safe atmosphere, e.g., to the side of an outdoor unit, and even if the refrigerant is leaked at the side of an indoor unit, it is possible to suppress the leakage to a certain level.
    • 在使用可燃性制冷剂作为制冷剂的制冷循环中,包括室内热交换器,室外热交换器,压缩机和通过管道彼此环形连接的膨胀装置,制冷循环设置有气体传感器和 制冷剂排出部分,气体传感器监测制冷剂从制冷循环到外部的泄漏,并且在通过气体传感器检测到泄漏之后,排出部分被打开以将制冷剂排出到外部。 此时,气体传感器配置在室内,排出部配置在室外。 此外,排出部分设置有风扇以便于制冷剂的分散。 此外,排出部设有燃烧器部分,以在燃烧制冷剂的同时排出制冷剂。 通过上述结构,可以监测可燃性制冷剂的泄漏,在检测到泄漏后,将制冷剂积极地排出到安全的大气中,例如室外机的一侧,即使制冷剂在 可以将泄漏抑制到一定水平。