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1. 发明公开

EP0665148A1 A coupling 失效
标题翻译： KUPPLUNG。
公开(公告)号：EP0665148A1
公开(公告)日：1995-08-02
申请号：EP95300491.8
申请日：1995-01-26
申请人： DAVIES & METCALFE PLC
发明人： Hesketh, Graham William
IPC分类号： B60T17/04 , B61G5/08
CPC分类号： B60T17/043 , B61G5/08
摘要： A hose-to-hose coupling assembly for an air brake pipe or a railway train has a coupling element with a fire resistant stand-by seal (18). The stand-by seal (18) is moveable in an annular groove (16) between sealing and non-sealing positions. A passageway connecting a main conduit of the coupling element to said seal is blocked by a plug (27). In the event of a fire at least part of said plug (27) is designed to melt at a predetermined temperature in order to open said passageway enabling the pressurised gas from the air brake pipe to bias said seal (18) into the sealing position. Thus when the conventional seal perishes in a fire leakage will be prevented as will application of the brakes which is undesirable when the train passes through a long distance tunnel.
摘要翻译：用于空气制动管或铁路列车的软管对软管接头组件具有带耐火备用密封件（18）的联接元件。备用密封件（18）可在密封位置和非密封位置之间的环形槽（16）中移动。将连接元件的主导管连接到所述密封件的通道被塞子（27）阻挡。在发生火灾的情况下，所述插头（27）的至少一部分被设计成在预定温度下熔化，以便打开所述通道，使得来自空气制动管的加压气体能够将所述密封件（18）偏压到密封位置。因此，如果在火车通过长距离隧道时施加不希望的制动器，则防止火灾中的传统密封件消失。

2. 发明公开

EP0665149A1 A cock 失效
标题翻译：哈恩。
公开(公告)号：EP0665149A1
公开(公告)日：1995-08-02
申请号：EP95300492.6
申请日：1995-01-26
申请人： DAVIES & METCALFE PLC
发明人： Timperley, David
IPC分类号： B60T17/04 , B61G5/06
CPC分类号： B60T17/043 , B61G5/08
摘要： A cock (3) for an air brake pipe (2) of a railway carriage is operable between open and closed positions to permit pressurised air to flow form inlet (7) to outlet (8). A vent through which air from the inlet is vented when the cock is closed has a seal (22) moveable between sealing and non-sealing positions. The seal (22) has is fastened to a torsion spring (17) restrained by an alloy (29) having a melting or disintegration temperature above a predetermined value. At the predetermined value the alloy (29) melts to release the torsion spring (17) so that the seal (22) is biased to the sealing position to close said vent thereby preventing leakage of air from the end cock and consequential application of the brakes.
摘要翻译：用于铁路车辆的空气制动管（2）的旋塞（3）可在打开和关闭位置之间操作，以允许加压空气从入口（7）流到出口（8）。当所述旋塞关闭时，来自所述入口的空气通过所述排气口具有在密封和非密封位置之间可移动的密封件（22）。密封件22已经被熔化或崩解温度高于预定值的合金（29）所限制的扭簧（17）紧固。在预定值下，合金（29）熔化以释放扭簧（17），使得密封件（22）被偏压到密封位置以关闭所述通气口，从而防止空气从端盖旋塞泄漏并因此施加制动器。

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