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    • 7. 发明授权
    • Automatic vent having a multi-hinged valve
    • 具有多铰链阀的自动排气孔
    • US5988201A
    • 1999-11-23
    • US127047
    • 1998-07-31
    • Benno LebkuchnerKenneth Sundberg
    • Benno LebkuchnerKenneth Sundberg
    • F16K24/04
    • F16K24/048Y10T137/3099Y10T137/7485
    • An automatic vent has a cup including a bottom wall, a side wall, an open top, and an inlet for introducing fluid into a compartment defined by the bottom and side walls. A valve assembly of the automatic vent includes a cap disposed over the open top of the cup. The cap has a body with an upwardly facing surface, a downwardly facing surface, a bore formed within the body for enabling fluid communication between the compartment and atmosphere, and an annular rim provided around the bore on the downwardly facing surface. A lever arm is hingedly connected at one end thereof to the body of the cap adjacent the annular rim. The automatic vent further includes a multi-hinged connection for hingedly moving the lever arm between a closed position in which the lever arm blocks the bore of the cap in response to the fluid level in the compartment rising above a predetermined fluid level, a partially open position in which the lever arm hingedly moves away from the cap but still engages the annular rim to allow gas to escape through the bore in response to the fluid level in the compartment lowering below the predetermined fluid level as a result of gas build up within the compartment, and an open position in which the lever arm hingedly moves away from the cap and annular rim in response to the fluid level in the compartment lowering substantially below the predetermined level.
    • 自动排气口具有包括底壁,侧壁,开口顶部和用于将流体引入由底壁和侧壁限定的隔室的入口的杯。 自动通风口的阀组件包括设置在杯的开口顶部上的盖。 盖具有具有向上的表面,面向下的表面的主体,形成在主体内的孔,用于实现隔室和大气之间的流体连通,以及围绕面向下的表面上的孔设置的环形边缘。 杠杆臂在其一端处铰接地连接到邻近环形边缘的盖的主体。 自动排气口还包括多铰链连接件,用于将杠杆臂铰接地移动到关闭位置,在关闭位置中,杠杆臂响应于舱室中的液位升高到高于预定液位的水平而阻挡盖的孔,部分打开 其中杠杆臂铰接地离开盖子移动的位置,但是仍然接合环形边缘,以允许气体响应于隔室中的流体水平降低到低于预定流体水平,从而通过孔内的气体积聚 隔间,以及打开位置,其中杠杆臂响应于舱室中的液位基本上低于预定水平面而从盖和环形边缘铰接地移开。