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    • 92. 发明申请
    • DIELECTRIC ISOLATORS
    • 电介质隔离器
    • WO2010001238A1
    • 2010-01-07
    • PCT/IB2009/006144
    • 2009-07-01
    • EATON CORPORATION
    • BREAY, Clifton, P.PFANNENSTIEL, Sara, D.MATTHEWS, Stephen, C.BRYANT, Edward, W., S.
    • B64D37/32B64D45/02F16L25/02F16L25/03
    • F16L25/025B64D37/32B64D45/02F16L5/12F16L25/01F16L25/03Y10S977/734Y10S977/742Y10S977/753Y10T428/1372Y10T428/139
    • The present application is directed to dielectric isolators for use in aircraft fuel systems to control lightning induced current and allow dissipation of electrostatic charge. The dielectric isolators are configured to have a high enough impedance to limit lightning currents to low levels, but low enough impedance to allow electrostatic charge to dissipate without allowing buildup. Although the dielectric isolators may develop a potential difference across the dielectric length due to the effects of lightning currents and its inherent impedance, they are configured to withstand these induced voltages without dielectric breakdown or performance degradation. In one embodiment, the dielectric isolator (100) includes a tube (110) constructed of a composition including a thermoplastic organic polymer (e.g., PEEK) and carbon nanotubes, and a pair of couplings (120a, b) attached to opposing ends of the tube (100). The dielectric isolator (100) is capable of exhibiting an electrical resistance from about 10 5 Ω to 10 8 Ω at an applied potential of greater than 500 volts DC when measured from one coupling (120a) to the other coupling (120b).
    • 本申请涉及用于飞行器燃料系统中的电介质隔离器,以控制雷电感应电流并允许静电电荷消散。 介质隔离器被配置为具有足够高的阻抗以将雷电电流限制到低电平,但是足够低的阻抗以允许静电电荷消散而不允许积聚。 尽管由于雷电流及其固有阻抗的影响,电介质隔离器可能在整个电介质长度上产生电位差,但它们被配置为承受这些感应电压而没有电介质击穿或性能下降。 在一个实施例中,介电隔离器(100)包括由包括热塑性有机聚合物(例如PEEK)和碳纳米管的组合物构成的管(110),以及一对连接件(120a,b) 管(100)。 当从一个耦合(120a)到另一个耦合(120b)测量时,介电隔离器(100)能够在大于500伏直流的施加电位下显现出大约105O至108O的电阻。