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82. 发明授权

US4481974A Safety valve with friction means for damping valve vibration 失效
标题翻译：具有阻尼阀振动的摩擦装置的安全阀
公开(公告)号：US4481974A
公开(公告)日：1984-11-13
申请号：US424977
申请日：1982-09-27
申请人： Manfred Schmitt , Emil Zitzelsberger
发明人： Manfred Schmitt , Emil Zitzelsberger
IPC分类号： F16K17/04 , F16K47/00
CPC分类号： F16K17/0433 , F16K47/00 , Y10T137/785 , Y10T137/7932
摘要： A safety valve has movable and immovable valve elements, and a friction unit arranged therebetween for damping vibrations, wherein the friction unit has a plurality of friction members movable radially relative to a valve axis, a pressing member arranged to move the friction members so that their friction surfaces are pressed against a friction countersurface of a movable valve element of the movable valve means and for abutment against a stationary abutment member at their side facing toward a valve closing member, and a pretensioned auxiliary spring acting upon the friction members at their side facing away from the valve closing member and in a valve closing direction, wherein the auxiliary spring has such force and such a smaller resistance that in the event of seizing of the friction members with the movable valve element, the auxiliary spring is compressed within a predetermined opening pressure which does not considerably exceed a response pressure over approximately a valve stroke.
摘要翻译：安全阀具有可移动和不可移动的阀元件，以及布置在其间的用于阻尼振动的摩擦单元，其中所述摩擦单元具有可相对于阀轴线径向移动的多个摩擦构件;按压构件，摩擦表面被压靠在可移动阀装置的可移动阀元件的摩擦反面上，并且在其面向阀闭合件的一侧抵靠在静止的抵靠件上，并且预紧的辅助弹簧作用在摩擦件上，所述辅助弹簧具有这样的力并且具有如此小的阻力，即在摩擦件与可动阀元件卡住的情况下，辅助弹簧在预定开口内被压缩压力不会大大超过大约阀门的响应压力喔。

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