公开(公告)号：US3995130A

公开(公告)日：1976-11-30

申请号：US446778

申请日：1974-02-28

申请人： Gerhard Mauthe ,  Klaus Ragaller ,  Ekkehard Schade

发明人： Gerhard Mauthe ,  Klaus Ragaller ,  Ekkehard Schade

IPC分类号： H01H33/70 ,  H01H33/76 ,  H01H33/60

CPC分类号： H01H33/76 ,  H01H33/7023 ,  H01H33/7076

摘要： A structural component such as nozzle-forming member to be utilized in conjunction with the arc quenching chamber of an electrical circuit breaker operating with a pressurized gaseous fluid such as SF.sub.6 and made from a polytetrafluoroethylene composition that is gas-emissive under influence of heat generated by the arc in the vicinity of the nozzle is provided with a system of gas-conducting passageways to permit such gas to escape from sub-surface cavities formed by deterioration of the composition rather than accumulate therein which leads ultimately to undersirable chipping off of pieces of the surface. These passageways may be constituted by a system of blind holes or by a system of grooves.

摘要翻译： 一种结构部件，例如喷嘴形成部件，与电弧断路器的灭弧室结合使用，该电路断路器用加压气态流体如SF6操作并由聚四氟乙烯组合物制成，该聚四氟乙烯组合物在由 喷嘴附近的电弧设置有导气通道的系统，以允许这种气体从由组合物的劣化形成的子表面空腔中逸出，而不是积聚在其中，这最终导致不可取的碎屑 表面。 这些通道可以由盲孔系统或凹槽系统构成。