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1. 发明公开

EP1197692A1 Proportional pilot-operated directional valve 有权
标题翻译： Vorgesteuertes Proportionalmehrwegventil
公开(公告)号：EP1197692A1
公开(公告)日：2002-04-17
申请号：EP01250356.1
申请日：2001-10-12
申请人： HydraForce, Inc.
发明人： Beyrak, Yakov
IPC分类号： F16K11/07 , F16K31/122 , F16K3/26
CPC分类号： F16K27/041 , F16K3/26 , F16K11/0716 , F16K31/1221 , Y10T137/0318 , Y10T137/7613 , Y10T137/8663 , Y10T137/86702
摘要： A proportional, pilot-operated directional valve has a sleeve with at least four sets of radial holes, and a spool disposed within the sleeve, with a channel being defined between the spool and the sleeve. The spool has at least two sets of radial holes, and the exterior surface of the spool has annular protrusions, each being in at least partial contact with the inner wall of the sleeve. When the valve is in an open position, the first set of radial holes of the sleeve is in communication with one of the two sets of radial holes of the spool, the second and third sets of radial holes of the sleeve are each at least in partial communication with the channel, and the fourth set of radial holes of the sleeve is in communication with the other of the two sets of radial holes of the spool. The spool may be kept in an open position by pressure from a flow of fluid that is provided at one end of the sleeve.
摘要翻译：成比例的先导式换向阀具有至少四组径向孔的套筒和设置在套筒内的阀芯，其中通道限定在阀芯和套筒之间。阀芯具有至少两组径向孔，并且阀芯的外表面具有环形凸起，每个都与套筒的内壁至少部分接触。当阀处于打开位置时，套筒的第一组径向孔与阀芯的两组径向孔中的一组连通，套管的第二组和第三组径向孔各自至少位于与通道的部分连通，并且套筒的第四组径向孔与线轴的两组径向孔中的另一组连通。阀芯可以通过来自设置在套筒的一端处的流体流的压力保持在打开位置。

2. 发明授权

EP1197692B1 Proportional pilot-operated directional valve 有权
标题翻译：先导式比例多路阀
公开(公告)号：EP1197692B1
公开(公告)日：2004-03-24
申请号：EP01250356.1
申请日：2001-10-12
申请人： HydraForce, Inc.
发明人： Beyrak, Yakov
IPC分类号： F16K11/07 , F16K31/122 , F16K3/26
CPC分类号： F16K27/041 , F16K3/26 , F16K11/0716 , F16K31/1221 , Y10T137/0318 , Y10T137/7613 , Y10T137/8663 , Y10T137/86702

3. 发明公开

EP1253363A1 Hydraulic valve with a position sensor 审中-公开
标题翻译： Hydraulisches Ventil mit Positionsgeber
公开(公告)号：EP1253363A1
公开(公告)日：2002-10-30
申请号：EP02090153.4
申请日：2002-04-23
申请人： HydraForce, Inc.
发明人： Beyrak, Yakov , Shader, James C.
IPC分类号： F16K37/00
CPC分类号： F16K27/041 , F16K11/0716 , F16K27/048 , F16K37/0041 , Y10T137/8242 , Y10T137/8663
摘要： A hydraulic valve (2) with a position sensor (20) is described. According to various implementations, the valve has a cage (6) with a set of radial holes (44,46,48), a spool assembly (8,14,32,33) slideable within the cage (6), and a sensor (20), which may be a Hall effect sensor, that reacts to the movement of the spool assembly. In other implementations, the spool comprises one or more of the following: a spool (8), a pin (34) that is mechanically coupled to the spool, a dampener, which may be a spring (33), having a first and a second end, the first end being in contact with the pin (32) and the second end being in contact with the spool (8).
摘要翻译：描述了具有位置传感器（20）的液压阀（2）。根据各种实施方式，阀具有一个具有一组径向孔（44,46,48）的保持架（6），可在保持架（6）内滑动的滑阀组件（8,14,32,33）（20），其可以是霍尔效应传感器，其对卷轴组件的运动作出反应。在其他实施方案中，卷轴包括以下中的一个或多个：卷轴（8），机械地联接到卷轴的销（34），可以是弹簧（33）的阻尼器，其具有第一和第二所述第一端与所述销（32）接触并且所述第二端与所述线轴（8）接触。

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