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1. 发明授权

US4430535A Damping device for electric circuit breakers 失效
标题翻译：电动断路器阻尼装置
公开(公告)号：US4430535A
公开(公告)日：1984-02-07
申请号：US323572
申请日：1981-11-20
申请人： Samuel Berg , Carl E. Solver
发明人： Samuel Berg , Carl E. Solver
IPC分类号： H01H3/60 , H01H35/38
CPC分类号： H01H3/605
摘要： The invention relates to an oil damping device intended to be used in operating mechanisms for puffer-type SF.sub.6 breakers where there is a risk that the contact movement is reversed during an opening operation with great current. The damping device comprises a piston which is attached to a piston rod and is movable in a damping cylinder. The damping device is double-acting and the movement is damped against the two end positions of the piston (corresponding to the closed and open position, respectively, of the circuit breaker) by forcing oil to flow out through restricted openings in the damping cylinder. The damping cylinder is movable inside an additional cylinder between a rest position and a lock position. Upon an opening operation, the damping cylinder is automatically brought to the lock position where it is temporarily retained by a latching member. With the damping cylinder in this position, the restricted openings arranged on the closed position side of the piston are closed, such that the piston is prevented from moving in the closing position. By providing the damping device with a nonreturn latching member, a higher breaking capacity of the circuit breaker can be achieved.
摘要翻译：本发明涉及一种用于吹气式SF6断路器的操作机构的油阻尼装置，其中存在在大电流打开操作期间接触运动反转的风险。阻尼装置包括活塞，活塞连接到活塞杆并可在阻尼缸中移动。阻尼装置是双重作用的，并且通过迫使油通过阻尼缸中的限制开口流出，抵抗活塞的两个端部位置（分别对应于断路器的闭合和打开位置）阻尼运动。阻尼缸可在静止位置和锁定位置之间的附加缸内移动。在打开操作时，阻尼缸自动地进入锁定位置，在该位置处暂时由锁定构件保持。在阻尼缸处于该位置时，设置在活塞的关闭位置侧的限制开口被关闭，从而防止活塞在关闭位置移动。通过为阻尼装置提供非回缩锁定构件，可以实现断路器的较高的分断能力。

2. 发明授权

US4491706A Circuit breaker with means for producing a flow of arc-extinguishing gas 失效
标题翻译：断路器，用于产生灭弧气体的流动
公开(公告)号：US4491706A
公开(公告)日：1985-01-01
申请号：US517019
申请日：1983-07-25
申请人： Samuel Berg
发明人： Samuel Berg
IPC分类号： H01H33/91 , H01H33/915 , H01H33/88
CPC分类号： H01H33/91 , H01H2033/908
摘要： A puffer type circuit breaker is provided with a pump means consisting of a piston and a cylinder for producing a blast of arc-extinguishing gas. The movable arcing contact of the circuit breaker and the cylinder are connected to an operating device via a rod axially displaceable through an opening in the piston. In the piston there is arranged a check valve, which upon closing of the breaker opens for subsequent filling of the pump chamber with arc-extinguishing gas. The check valve comprises a guiding sleeve of a ductile material (e.g. polyetrafluoro ethylene), which sealingly surrounds the rod and is fixed with a certain axial mobility in the opening in the piston arranged for the rod. The sleeve controls (or is fixedly connected to) the movable valve means of the check valve and, in addition, serves as a seal and a bearing between the rod and the piston.
摘要翻译：吹气式断路器设有由活塞和用于产生灭弧气体的气缸的气缸组成的泵装置。断路器和气缸的可动电弧触点通过可通过活塞中的开口轴向移动的杆连接到操作装置。在活塞中设置止回阀，当止回阀关闭时，止回阀打开，随后用灭弧气体填充泵室。止回阀包括一个延性材料（例如聚四氟乙烯）的引导套筒，其密封地围绕杆并且在为杆安排的活塞的开口中以一定的轴向迁移率固定。套筒控制（或固定地连接）止回阀的可移动阀装置，另外也用作杆和活塞之间的密封件和轴承。

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