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    Puffer circuit breaker with reduced puffer volume pressure
    1.
    发明专利
    Puffer circuit breaker with reduced puffer volume pressure 审中-公开
    具有减少PUFFER体积压力的PUFFER电路断路器

    公开(公告)号：JP2008135392A

    公开(公告)日：2008-06-12

    申请号：JP2007303938

    申请日：2007-11-26

    Applicant: Abb Technology Ag ,  アーベーベー・テヒノロギー・アーゲー

    Inventor： HEIERMEIER HELMUT ,  KAMMERL KURT ,  KEHR TIMO ,  FRISK JOHAN

    IPC: H01H33/915

    CPC classification number: H01H33/901 ,  H01H33/82 ,  H01H33/86 ,  H01H2033/908

    Abstract: PROBLEM TO BE SOLVED: To enable to increase switching speed and/or reduce energy of required driving operation.
    SOLUTION: A circuit breaker comprises a puffer volume 9 and at least one filling valve 16 structured to allow a flow of gas into the puffer volume 9 upon expansion of the same. A closing member 18 is biased in a direction against the flow of gas emitting from the puffer volume 9 such that the filling valve 16 remains open while the pressure accumulated within the puffer volume 9 remains below a given threshold. This allows to keep the pressure in the puffer volume 9 low under low current switching conditions, thereby decreasing the tendency for supersonic flow in the insulating nozzle.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：能够提高开关速度和/或降低所需驾驶操作的能量。 解决方案：断路器包括吹气容积9和至少一个填充阀16，其被构造成允许气体在其膨胀时进入吹气容积9。 关闭构件18被偏置在抵抗从吹气容积9发射的气体流动的方向上，使得填充阀16保持打开，同时积聚在吹气容积9内的压力保持在给定阈值以下。 这允许在低电流切换条件下将吹气体积9中的压力保持在低电平，从而降低绝缘喷嘴中超音速流动的趋势。 版权所有（C）2008，JPO＆INPIT

    Puffer circuit breaker with overpressure valve
    2.
    发明专利
    Puffer circuit breaker with overpressure valve 审中-公开
    带过压阀的断路器断路器

    公开(公告)号：JP2007324130A

    公开(公告)日：2007-12-13

    申请号：JP2007141317

    申请日：2007-05-29

    Applicant: Abb Technology Ag ,  アーベーベー・テヒノロギー・アーゲー

    Inventor： HEIERMEIER HELMUT ,  KAMMERL KURT ,  KEHR TIMO ,  GROB STEPHAN

    IPC: H01H33/915

    CPC classification number: H01H33/901 ,  H01H33/91 ,  H01H2033/906 ,  H01H2033/908

    Abstract: PROBLEM TO BE SOLVED: To provide a puffer circuit breaker with a valve for releasing overpressure in a puffer volume.
    SOLUTION: The circuit breaker includes a puffer volume 9, and at least one overpressure valve 16 for discharging gas from the puffer volume 9 if the pressure therein exceeds a given threshold. The overpressure valve 16 comprises a piston 17 and a spring 19 as well as a cavity 18 in a stationary support body of a movable contact assembly 2. The overpressure valve 16 is designed into compact and simple structure and has low hysteresis and large cross-section.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种用于释放吹气体积中的超压的阀的吹气断路器。 解决方案：断路器包括一个冲洗器容积9和至少一个超压阀16，用于如果其中的压力超过一个给定的阈值，则从吹气容积9排出气体。 超压阀16包括活塞17和弹簧19以及可动接触组件2的固定支撑体中的空腔18.超压阀16被设计成紧凑且简单的结构，并且具有低磁滞和大横截面 。 版权所有（C）2008，JPO＆INPIT

    4.
    发明专利
    未知

    公开(公告)号：AT523889T

    公开(公告)日：2011-09-15

    申请号：AT06405498

    申请日：2006-11-27

    Applicant: ABB TECHNOLOGY AG

    Inventor： HEIERMEIER HELMUT ,  KAMMERL KURT ,  KEHR TIMO ,  FRISK JOHAN

    IPC: H01H33/90

    Abstract: A circuit breaker comprises a puffer volume (9) and at least one filling valve (16) adapted to allow a flow of gas into the puffer volume (9) upon expansion of the same. The closing member (18) is biased in a direction against the flow of gas exiting from the puffer volume (9) such that the filling valve (16) remains open while the pressure build-up within the puffer volume (9) remains below a given threshold. This allows to keep the pressure in the puffer volume (9) low under low current switching conditions, thereby decreasing the tendency for supersonic flow in the insulating nozzle. It also allows to increase the switching speed and/or to decrease the required drive operating energy.

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