公开(公告)号：WO2013090728A2

公开(公告)日：2013-06-20

申请号：PCT/US2012/069762

申请日：2012-12-14

Applicant: EATON CORPORATION

Inventor： WEST, Gary ,  TAMBOLI, Javedkhan, Nijam ,  KULKARNI, Aniruddha

IPC: F16K11/07

CPC classification number: F16K11/0712 ,  F15B13/0402 ,  F16K11/0708 ,  Y10T137/8671

Abstract: A spool valve includes a body defining a bore and a positionable spool located within the bore. The spool includes a central body portion having a diameter and a number of sealing lands separated by the central body portion. Each sealing land has a diameter larger than the central body portion diameter. A plurality of flow-shaping rings are located between first and second sealing lands, and each comprise an intermediate diameter larger than the central body portion diameter and smaller than the sealing land diameter.

Abstract translation: 滑阀包括限定孔的主体和位于孔内的可定位线轴。 阀芯包括具有由中心主体部分分开的直径和多个密封焊盘的中心主体部分。 每个密封平台的直径大于中心体直径。 多个流动成形环位于第一和第二密封平台之间，并且每个流动成形环包括大于中心主体部分直径并小于密封平台直径的中间直径。