公开(公告)号：WO0171226A3

公开(公告)日：2002-06-27

申请号：PCT/US0108403

申请日：2001-03-16

Applicant: KELSEY HAYES CO

Inventor： BARRON RICHARD ,  WILLIAMS KIRT R ,  FULLER E NELSON ,  HUNNICUTT HARRY A

IPC: B81B3/00 ,  B60T8/36 ,  B60T8/42 ,  B60T8/48 ,  F15B13/04 ,  F15B13/042 ,  F15B13/043 ,  F15C4/00 ,  F15C5/00 ,  F16K7/00 ,  F16K31/12 ,  F16K99/00 ,  G05D7/06 ,  B60T8/00 ,  H02K7/00

CPC classification number: F16K99/0001 ,  B60T8/366 ,  B60T8/3695 ,  B60T8/42 ,  B60T8/4275 ,  F15B13/0402 ,  F15B13/0438 ,  F15C5/00 ,  F16K99/0011 ,  F16K99/0059 ,  F16K2099/0076 ,  G05D7/0694 ,  Y10T137/86622 ,  Y10T137/86847 ,  Y10T137/87209

Abstract: A microvalve device for controlling fluid flow in a fluid circuit (10). The microvalve device comprises a body (12) having a cavity formed therein. The body further has first (20) and second (22) pilot ports placed in fluid communication with the cavity. The body also has first (28) and second (30) primary ports placed in fluid communication with the cavity. Each port is adapted for connection with a designated fluid source. A pilot valve (36) supported by the body is movably disposed in the cavity for opening and closing the first and second pilot ports. An actuator (38) is operably coupled to the pilot valve for moving the pilot valve. A microvalve (40) is positioned by the fluid controlled by the pilot valve. The microvalve is a slider valve having a first end (40a) and a second end (40b). The slider valve is movably disposed in the cavity for movement between a first position and a second position. The first end of the slider valve is in fluid communication with the first and second pilot ports when the first and second pilot ports are open. The second end of the slider valve is in constant fluid communication with the first primary port. When moving between the first and second positions, the slider valve at least partially blocks and unblocks the second primary port for the purpose of variably restricting fluid flow between the primary ports.

Abstract translation: 一种用于控制流体回路（10）中的流体流动的微型阀装置。 微型阀装置包括其中形成有腔的主体（12）。 主体还具有与空腔流体连通的第一（20）和第二（22）导向口。 主体还具有与腔体流体连通的第一（28）和第二（30）主端口。 每个端口适于与指定的流体源连接。 由主体支撑的先导阀（36）可移动地设置在空腔中，用于打开和关闭第一和第二先导端口。 致动器（38）可操作地联接到先导阀以用于移动先导阀。 微阀（40）由通过先导阀控制的流体定位。 微型阀是具有第一端（40a）和第二端（40b）的滑阀。 滑动阀可移动地设置在空腔中，用于在第一位置和第二位置之间移动。 当第一和第二导向口打开时，滑阀的第一端与第一和第二导向口流体连通。 滑阀的第二端与第一主端口恒定流体连通。 当在第一位置和第二位置之间移动时，为了可变地限制主端口之间的流体流动，滑块阀至少部分地阻塞和解锁第二主端口。