公开(公告)号：US20060000507A1

公开(公告)日：2006-01-05

申请号：US10806848

申请日：2004-03-23

申请人： Mario Rodriguez ,  Ronald Olson ,  Torin Lewis

发明人： Mario Rodriguez ,  Ronald Olson ,  Torin Lewis

IPC分类号： F15B13/044

CPC分类号： F16K11/07 ,  F16K27/041 ,  Y10T137/0491 ,  Y10T137/86598 ,  Y10T137/86606 ,  Y10T137/8671

摘要： A servovalve has a sleeve having both a first metering aperture and a second metering aperture in fluid communication with a single port cavity defined by the servovalve. A spool oriented within the sleeve has a first land and a second land and defines a channel oriented between the first land and the second land. When the spool orients in a null position within the sleeve, the first land overlaps the first metering aperture and the second land overlaps the second metering aperture. As a low viscosity fluid within the servovalve assembly leaks across the first land and enters the channel, the overlap of the first and second lands with the first and second metering apertures minimizes flow of the fluid from the channel into the port cavity associated with the metering apertures. The configuration of the sleeve assembly, therefore, maintains a relatively large pressure gain within the servovalve assembly.

摘要翻译： 伺服阀具有套筒，其具有与由伺服阀限定的单个端口腔流体连通的第一计量孔和第二计量孔。 定位在套筒内的线轴具有第一接地区和第二接地区，并且限定了定向在第一接地区和第二接地面之间的通道。 当卷轴定位在套筒内的零位置时，第一脊与第一计量孔重叠，第二脊与第二计量孔重叠。 当伺服阀组件内的低粘度流体泄漏到第一焊盘并进入通道时，第一和第二焊盘与第一和第二计量孔的重叠使得流体从通道流入与计量相关联的端口腔中 孔。 因此，套筒组件的构造在伺服阀组件内保持相对较大的压力增益。

公开(公告)号：US07093607B2

公开(公告)日：2006-08-22

申请号：US10806848

申请日：2004-03-23

申请人： Mario Armando Rodriguez ,  Ronald Olson ,  Torin Lewis

发明人： Mario Armando Rodriguez ,  Ronald Olson ,  Torin Lewis

IPC分类号： F15B13/044

CPC分类号： F16K11/07 ,  F16K27/041 ,  Y10T137/0491 ,  Y10T137/86598 ,  Y10T137/86606 ,  Y10T137/8671

摘要： A servovalve has a sleeve having both a first metering aperture and a second metering aperture in fluid communication with a single port cavity defined by the servovalve. A spool oriented within the sleeve has a first land and a second land and defines a channel oriented between the first land and the second land. When the spool orients in a null position within the sleeve, the first land overlaps the first metering aperture and the second land overlaps the second metering aperture. As a low viscosity fluid within the servovalve assembly leaks across the first land and enters the channel, the overlap of the first and second lands with the first and second metering apertures minimizes flow of the fluid from the channel into the port cavity associated with the metering apertures. The configuration of the sleeve assembly, therefore, maintains a relatively large pressure gain within the servovalve assembly.

摘要翻译： 伺服阀具有套筒，其具有与由伺服阀限定的单个端口腔流体连通的第一计量孔和第二计量孔。 定位在套筒内的线轴具有第一接地区和第二接地区，并且限定了定向在第一接地区和第二接地面之间的通道。 当卷轴定位在套筒内的零位置时，第一脊与第一测量孔重叠，并且第二脊与第二计量孔重叠。 当伺服阀组件内的低粘度流体泄漏到第一焊盘并进入通道时，第一和第二焊盘与第一和第二计量孔的重叠使得流体从通道流入与计量相关联的端口腔中 孔。 因此，套筒组件的构造在伺服阀组件内保持相对较大的压力增益。