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1. 发明授权

US4748305A Gas-blast switch 失效
标题翻译：鼓风开关
公开(公告)号：US4748305A
公开(公告)日：1988-05-31
申请号：US27637
申请日：1987-03-19
申请人： Charles Luginbuhl
发明人： Charles Luginbuhl
IPC分类号： H01H33/70 , H01H33/98 , H01H33/985 , H01H33/60
CPC分类号： H01H33/7084 , H01H33/98
摘要： A gas-blast switch has a housing which encloses an arcing chamber, an accumulator space and an expansion space. Two relatively moveable contact members are arranged in the housing. One of the contact members moves through a nozzle. The nozzle is formed of and defined by two moveable nozzle parts, the relative position of which determines the size of a discharge cross-section in the nozzle. During a switching-off operation, the moveable contact member moves out of the arcing chamber and quenching gas flows from the accumulator space into the expansion space, through the arcing chamber, i.e. the nozzle. The size of discharge cross-section of the nozzle varies through movement of the nozzle parts which respond to pressure created in the switch, without the assistance of elaborate compression springs. To this end, the nozzle parts are freely mounted to move in response to pressures generated in the switch and they are disposed in the gas path between the arcing chamber and the accumulator space.
摘要翻译：气体吹扫开关具有包围电弧室，蓄能器空间和膨胀空间的壳体。两个相对可移动的接触构件布置在壳体中。接触件之一移动通过喷嘴。喷嘴由两个可移动的喷嘴部分形成并限定，喷嘴部分的相对位置确定喷嘴中的排放横截面的尺寸。在关闭操作期间，可移动接触构件移出电弧室，淬火气体通过电弧室即喷嘴从蓄能器空间流入膨胀空间。喷嘴的排放横截面尺寸通过喷嘴部件的运动而变化，这些喷嘴部件响应于开关中产生的压力，而无需精心制作的压缩弹簧。为此，喷嘴部件自由地安装以响应于开关中产生的压力而移动，并且它们设置在电弧室和蓄电池空间之间的气体路径中。

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