公开(公告)号：US20150020903A1

公开(公告)日：2015-01-22

申请号：US14333313

申请日：2014-07-16

Applicant: CONTROL COMPONENTS, INC.

Inventor： MARCO MASTROVITO

IPC: F16K47/08 ,  F16K1/42

CPC classification number: F16K47/08 ,  F16K1/54 ,  F16K47/04 ,  F16K47/06 ,  F16K47/12 ,  Y10T137/86791

Abstract: A cascade type trim for integration into control valve and having a valve stem and a valve cage which cooperate with each other to define a plurality of fluid passageway columns, each of which extend between a valve inlet and a valve outlet. Each fluid passageway column is collectively defined by a plurality of stem passageways and a plurality of cage passageways. The stem and cage passageways are brought in and out of alignment as a result of axial movement of the stem relative to the cage. In a first position, a first fluid passageway is open, while a second fluid passageway remains closed. In a second position, both the first and second fluid passageways are open, and yet in a third position, the first fluid passageway is closed and the second fluid passageway is open.

Abstract translation: 用于集成到控制阀中并具有阀杆和阀笼的级联型装饰件，其彼此配合以限定多个流体通道柱，每个流体通道柱在阀入口和阀出口之间延伸。 每个流体通道列由多个杆通道和多个笼通道共同限定。 杆和笼通道由于杆相对于保持架的轴向移动而被引入和脱离对准。 在第一位置，第一流体通道打开，而第二流体通道保持关闭。 在第二位置，第一和第二流体通道都是打开的，然而在第三位置中，第一流体通道关闭并且第二流体通道是敞开的。