公开(公告)号：WO2013090728A3

公开(公告)日：2013-08-29

申请号：PCT/US2012069762

申请日：2012-12-14

Applicant: EATON CORP

Inventor： WEST GARY ,  TAMBOLI JAVEDKHAN NIJAM ,  KULKARNI ANIRUDDHA

IPC: F15B13/04 ,  F16K11/07

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

Abstract: A spool valve (100) includes a body (102) defining a bore (104) and a positionable spool (106) located within the bore. The spool includes a central body portion (112) having a diameter and a number of sealing lands (118) 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 8114) 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（100）包括限定孔（104）的本体（102）和位于孔内的可定位线轴（106）。 卷轴包括具有由中心主体部分分开的直径和多个密封平台（118）的中心主体部分（112）。 每个密封平台的直径大于中心体直径。 多个流动成形环8114）位于第一和第二密封平台之间，并且每个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。