公开(公告)号：US06176263B1

公开(公告)日：2001-01-23

申请号：US09327195

申请日：1999-06-07

申请人： Jean-Jacques Lacroix ,  Andr{acute over (e)} Pavan

发明人： Jean-Jacques Lacroix ,  Andr{acute over (e)} Pavan

IPC分类号： F16L3728

CPC分类号： F16L29/04 ,  Y10T137/87925 ,  Y10T137/87957

摘要： This invention relates to a circuit breaker for an installation handling pressurized fluid comprising an internal valve, at least one joint of substanially toroidal shape being disposed in an accommodating housing around said valve and/or a member for maneuvering the valve, characterized in that the housing is connected, via at least one fluid-circulation channel, to a counter-pressure zone formed downstream of the joint around the valve or the maneuvering member. During a transitory phase of opening of the valve, a preferential flow circuit of the fluid is arranged between the housing and the counter-pressure zone through the channel. Thanks to the counter-pressure exerted on the seal, the latter does risk being dislocated with respect to its housing.

摘要翻译： 本发明涉及一种用于处理加压流体的设备的断路器，包括内部阀，基本环形形状的至少一个接头设置在围绕所述阀门的容纳壳体和/或用于操纵阀门的构件中，其特征在于， 经由至少一个流体循环通道连接到围绕阀门或机动构件的接头下游形成的反压区域。 在阀的打开的暂时阶段期间，流体的优先流动回路通过通道布置在壳体和反压区之间。 由于施加在密封件上的反压力，后者确实有相对于其外壳的错位的风险。