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    • 3. 发明授权
    • Air compressor malfunction detector
    • 空气压缩机故障检测器
    • US4938663A
    • 1990-07-03
    • US312055
    • 1989-02-17
    • Hiroshi MitsuhashiHarutsugu UshiotaAkiharu OdagiriGen KanohSusumu Sakamoto
    • Hiroshi MitsuhashiHarutsugu UshiotaAkiharu OdagiriGen KanohSusumu Sakamoto
    • F04B39/00F04B41/02F04B49/10
    • F04B41/02F04B49/10
    • A compressor which is provided with a safety device so that it is possible to detect occurrence of a primary accident, for example, breakage of a connecting rod, in the early stage. The compressor has a pressure sensor installed at a predetermined position in the compressor to detect the level of pressure at that position, a memory means for storing the behavior of the pressure change at the predetermined position that is obtained when the compressor is running in a normal state, a means for judging the behavior of the pressure change actually taking place at the predetermined position on the basis of an output from the pressure sensor and making a comparison between the actual pressure change behavior and the pressure change behavior in the normal state that is stored in the memory means, and a means for suspending the compressor when the actual pressure change behavior is different from the pressure change behavior in the normal state. Thus, it is possible to reliably prevent occurrence of a secondary accident which may invite a serious accident and hence possible to enhance the safety and reliability of the compressor.
    • 具有安全装置的压缩机,使得能够在早期阶段检测出一次事故的发生,例如连杆的断裂。 压缩机具有安装在压缩机中的预定位置处的压力传感器,用于检测该位置处的压力水平;存储装置,用于存储在压缩机正常运行时获得的预定位置处的压力变化的行为 状态,用于基于来自压力传感器的输出来确定在预定位置处实际发生的压力变化的行为的手段,并且在正常状态下的实际压力变化行为和压力变化行为之间进行比较,该正常状态是 存储在存储装置中的装置,以及用于在实际压力变化行为与正常状态下的压力变化行为不同时暂停压缩机的装置。 因此,可以可靠地防止可能引起严重事故的二次事故的发生,从而可以提高压缩机的安全性和可靠性。