公开(公告)号：US20160290516A1

公开(公告)日：2016-10-06

申请号：US14678101

申请日：2015-04-03

Applicant: Caterpillar Inc.

Inventor： Matthew J. BESCHORNER ,  Bryan A. JOHNSON ,  Hideki NAKAJIMA

IPC: F16K11/07

CPC classification number: F16K11/0712 ,  F15B13/0402 ,  F15B13/0405 ,  F15B13/0417 ,  F15B2013/008 ,  F15B2211/30575 ,  Y10T137/86461

Abstract: A spool is disclosed for use in a valve. The spool may have an elongated cylindrical body with a first end and a second end. The spool may also have a first land formed at the first end, a second land axially spaced apart from the first land, and a check element located between the first and second lands. The check element may have an outer diameter that is about 0.5-1% greater than an outer diameter of the second land.

Abstract translation: 公开了一种用于阀门的阀芯。 线轴可以具有带有第一端和第二端的细长圆柱体。 线轴还可以具有形成在第一端处的第一接地区，与第一接地区轴向间隔开的第二接地区以及位于第一和第二接地区之间的检查元件。 支票元件可以具有比第二平台的外径大约0.5-1％的外径。