公开(公告)号：WO2010044930A3

公开(公告)日：2010-04-22

申请号：PCT/US2009/049515

申请日：2009-07-02

Applicant: EATON CORPORATION ,  BREAY, Clifton, P. ,  PFANNENSTIEL, Sara, D. ,  MATTHEWS, Stephen, C. ,  BRYANT, Edward, W., S.

Inventor： BREAY, Clifton, P. ,  PFANNENSTIEL, Sara, D. ,  MATTHEWS, Stephen, C. ,  BRYANT, Edward, W., S.

IPC: H05F3/00

Abstract: 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. The isolator includes a tube constructed of a composition including a thermoplastic organic polymer (PEEK) and carbon nanotubes, and a pair of fittings attached to opposing ends of the tube. In another embodiment, the dielectric isolator includes a tube, an outer annular portion, and an interconnecting web, each constructed from the composition including a thermoplastic organic polymer and carbon nanotubes. This later embodiment is an integrally formed one-piece structure. The dielectric isolator is capable of exhibiting an electrical resistance from about 10A5 Ohm to 10Λ8 Ohm at an applied potential of greater than 500 volts DC when measured from one fitting to the other fitting.

公开(公告)号：WO2010044930A2

公开(公告)日：2010-04-22

申请号：PCT/US2009049515

申请日：2009-07-02

Applicant: EATON CORP ,  BREAY CLIFTON P ,  PFANNENSTIEL SARA D ,  MATTHEWS STEPHEN C ,  BRYANT EDWARD W S

Inventor： BREAY CLIFTON P ,  PFANNENSTIEL SARA D ,  MATTHEWS STEPHEN C ,  BRYANT EDWARD W S

IPC: H01R4/58 ,  F16L55/00

CPC classification number: F16L25/023 ,  B64D37/32 ,  B64D45/02 ,  F16L5/12 ,  F16L25/021 ,  F16L25/025 ,  F16L39/005 ,  H01B17/42 ,  Y02T50/44 ,  Y10S977/734 ,  Y10S977/742 ,  Y10S977/753 ,  Y10T428/1372 ,  Y10T428/249945 ,  Y10T428/249947 ,  Y10T428/249952 ,  Y10T428/2826

Abstract: 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 includes a tube constructed of a composition including a thermoplastic organic polymer (e.g., PEEK) and carbon nanotubes, and a pair of fittings attached to opposing ends of the tube. In another embodiment, the dielectric isolator includes a tube, an outer annular portion, and an interconnecting web, each constructed from the composition including a thermoplastic organic polymer (e.g., PEEK) and carbon nanotubes. This later embodiment is an integrally formed one-piece structure. The dielectric isolator is capable of exhibiting an electrical resistance from about 105 O to 108 O at an applied potential of greater than 500 volts DC when measured from one fitting to the other fitting.

Abstract translation: 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。 介电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电介质长度上产生电位差，但是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和连接到管的相对端的一对配件。 在另一个实施例中，介电隔离器包括管，外环形部分和互连网，每个由包含热塑性有机聚合物（例如PEEK）和碳纳米管的组合物构成。 该后续实施例是整体形成的一体式结构。 当从一个配件到另一个配件测量时，电介质隔离器能够在大于500伏直流的施加电位下呈现大约105O至108O的电阻。