公开(公告)号：US07013919B2

公开(公告)日：2006-03-21

申请号：US10624007

申请日：2003-07-21

Applicant: Harald Beth

Inventor： Harald Beth

IPC: F16K31/04

CPC classification number: F16L55/02763 ,  F16K47/08 ,  Y10T137/86759 ,  Y10T137/86791 ,  Y10T137/87917

Abstract: A throttle device comprises a tubular outer sleeve having a plurality of outer sleeve circumferential grooves formed on an outer sleeve inner surface and intersecting a plurality of outer sleeve axial grooves formed on an outer sleeve outer surface to form outer sleeve orifices. Also included is a tubular inner sleeve concentrically disposed within the outer sleeve and having a plurality of inner sleeve circumferential grooves formed on an inner sleeve inner surface. A plurality of inner sleeve axial grooves are formed on the inner sleeve outer surface and intersect the inner sleeve circumferential grooves to form inner sleeve orifices. The offset inner and outer sleeve orifices define tortuous flow paths wherein fluid flows into the outer sleeve axial grooves, through the outer sleeve orifices, through the outer sleeve circumferential grooves, through the inner sleeve axial grooves, through the inner sleeve orifices before exiting the inner sleeve circumferential grooves.

Abstract translation: 节流装置包括管状外套筒，其具有形成在外套筒内表面上并与形成在外套筒外表面上的多个外套筒轴向槽相交的多个外套筒周向槽，以形成外套筒孔。 还包括同心地设置在外套筒内并具有形成在内套筒内表面上的多个内套筒周向槽的管状内套筒。 多个内套筒轴向槽形成在内套筒外表面上并与内套筒周向槽相交，以形成内套筒孔。 偏移的内套筒孔和外套筒孔限定弯曲的流动路径，其中流体通过外套管孔径穿过外套管圆周槽而流入外套筒轴向槽，穿过内套筒轴向槽，通过内套筒孔，然后离开内套筒孔 套筒周向槽。