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    • 9. 发明授权
    • Volume expansion system for breathing gas in closed-circuit breathing apparatus
    • 闭路呼吸器呼吸气体体积膨胀系统
    • US07810498B1
    • 2010-10-12
    • US11729087
    • 2007-03-23
    • Charles Patterson
    • Charles Patterson
    • A62B7/02B63C11/02
    • B63C11/24
    • A volume expansion system increases the storage volume for breathing gas in a closed-circuit breathing gas apparatus. A flow controller is coupled to an inhalation side of the closed-circuit breathing gas apparatus and is also coupled to an expandable reservoir. The flow controller defines a first flow path that allows breathing gas in the inhalation side to automatically flow into the expandable reservoir when pressure in the inhalation side exceeds a threshold. The flow controller can also include the means to define a second flow path that allows on-demand return of the breathing gas in the expandable reservoir to the inhalation side of the breathing gas apparatus.
    • 体积膨胀系统增加了闭路呼吸气体装置中呼吸气体的储存量。 流量控制器耦合到闭路呼吸气体装置的吸入侧,并且还连接到可膨胀的储存器。 流量控制器限定第一流动路径,当吸入侧的压力超过阈值时,允许吸入侧的呼吸气体自动流入可扩张的储存器。 流量控制器还可以包括用于限定第二流动路径的装置,该第二流动路径允许将呼吸气体在可膨胀容器中按需返回到呼吸气体装置的吸入侧。