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公开(公告)号：US5850086A
公开(公告)日：1998-12-15
申请号：US670794
申请日：1996-06-21
申请人： Lawrence Que, Jr. , Cheal Kim , Jinheung Kim , Yan Zang
发明人： Lawrence Que, Jr. , Cheal Kim , Jinheung Kim , Yan Zang
CPC分类号： C11D3/3932 , B01J31/1815 , C07C29/48 , C07C45/28 , C07D303/04 , C07F15/025 , B01J2531/842 , C07B2200/09 , C07C2101/14 , C07C2101/16 , C07C2101/18
摘要： A bleach and oxidation catalyst is provided comprising a catalytically active iron complex which can activate hydrogen peroxide or peroxy acids, for example.
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公开(公告)号：US5634724A
公开(公告)日：1997-06-03
申请号：US519842
申请日：1995-08-25
申请人： Yan Zang , Michael R. Hatch
发明人： Yan Zang , Michael R. Hatch
CPC分类号： F16C33/103 , F16C33/74 , G11B19/2009 , F16C2370/12
摘要： A self-contained hydrodynamic bearing unit includes a shaft having a threaded axial opening at one end thereof and a shaft shoulder adjacent the opening and perpendicular with a longitudinal axis of the shaft, a sleeve defining an opening for receiving the shaft for relative rotation, a pair of longitudinally spaced-apart radial hydrodynamic journal bearings defined between the shaft and the sleeve, a shaft-bolt including a threaded end region for mating with the threaded axial opening of the shaft and defining a bolt shoulder, an annular thrust plate having two parallel radial faces and adapted to fit upon the shaft-bolt for mounting between the shaft shoulder and the shaft bolt shoulder when the shaft-bolt is mated with the threaded axial opening of the shaft, the sleeve defining a radial thrust bearing surface portion extending radially outwardly at one end and positioned to confront one radial face of the thrust plate, an annular thrust bushing mounted to the sleeve and defining a radial thrust bearing surface portion confronting the other radial face of the thrust plate, the annular thrust plate defining two axial hydrodynamic thrust bearings respectively with the radial thrust bearing surface portion of the sleeve and the radial thrust bearing surface portion of the annular thrust bushing and a hydrodynamic thrust bearing lubricant reservoir between the two axial hydrodynamic thrust bearings and between a cylindrical face of the thrust plate and a facing cylindrical wall of the sleeve, and a hydrodynamic bearing lubricant in the bearing unit and at the pair of hydrodynamic journal bearings and at the two axial hydrodynamic thrust bearings and in the hydrodynamic bearing lubricant reservoir.
摘要翻译： 独立的流体动力轴承单元包括：轴，其一端具有带螺纹的轴向开口;以及轴肩，邻近开口并且垂直于轴的纵向轴线;套筒限定用于容纳相对旋转的轴的开口， 限定在轴和套筒之间的一对纵向间隔开的径向流体动力轴颈轴承，包括用于与轴的螺纹轴向开口配合并限定螺栓肩部的螺纹端部区域的轴螺栓，具有两个平行的环形推力板 径向面，并且当轴螺栓与轴的螺纹轴向开口配合时，适于安装在轴螺栓上用于安装在轴肩和轴螺栓肩部之间，套筒限定径向向外延伸的径向推力轴承表面部分 在一端并且定位成面对推力板的一个径向面，安装到套筒上并限定一个的环形推力衬套 径向推力轴承表面部分面对推力板的另一个径向面，环形推力板分别限定两个轴向流体动力推力轴承，其中套筒的径向推力支承表面部分和环形推力衬套的径向推力轴承表面部分和 在两个轴向流体动力推力轴承之间以及推力板的圆柱面与套筒的相对的圆柱形壁之间的流体动力学推力轴承润滑剂储存器，以及轴承单元中的流体动力轴承润滑剂和在一对流体动力轴颈轴承 两个轴向流体动力推力轴承和流体动力轴承润滑油库。
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公开(公告)号：US5558443A
公开(公告)日：1996-09-24
申请号：US503794
申请日：1995-07-18
申请人： Yan Zang
发明人： Yan Zang
CPC分类号： F16C33/107 , F16C17/107 , F16C33/103 , F16C33/745
摘要： A seal for a hydrodynamic bearing unit having a shaft and a sleeve includes a seal ring secured to the shaft and extending radially outwardly of the pair of spaced-apart hydrodynamic journal bearings defined between the seal ring and a thrust plate. The seal ring adjacently faces adjacent radial and axial portions of the sleeve. An annular taper capillary seal is defined between a diverging outer wall surface of the seal ring and the adjacent axial portion of the sleeve. A containment ring extends from the sleeve to surround a radial wall portion of the seal ring adjacent to an opening of the taper capillary seal and forms a secondary containment seal opening toward the shaft for preventing escape of the hydrodynamic bearing lubricant. The hydrodynamic lubricant is placed within the annular taper capillary seal and is retained in place by capillary force in the absence of rotation, and is retained in place by capillary force and by centrifugal force in the presence of relative rotation between the shaft and the sleeve.
摘要翻译： 用于具有轴和套筒的流体动力轴承单元的密封件包括固定到轴上的密封环，并且在密封环和止推板之间限定的一对间隔开的流体动力轴颈轴承的径向向外延伸。 密封圈相邻地邻近套筒的径向和轴向部分。 环形锥形毛细管密封件限定在密封环的发散外壁表面和套筒的相邻轴向部分之间。 容纳环从套筒延伸以围绕与锥形毛细管密封件的开口相邻的密封环的径向壁部分，并且形成朝向轴的二级密封开口，用于防止流体动力轴承润滑剂的逸出。 流体动力润滑剂放置在环形锥形毛细管密封件内，并通过毛细管力在不存在旋转的情况下保持就位，并且通过毛细管力和离心力在轴和套筒之间的相对旋转的情况下保持在适当的位置。
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公开(公告)号：US5423612A
公开(公告)日：1995-06-13
申请号：US308078
申请日：1994-09-16
申请人： Yan Zang , Shuhao Chen , Michael R. Hatch
发明人： Yan Zang , Shuhao Chen , Michael R. Hatch
CPC分类号： G11B19/2009 , F16C33/107 , F16C33/745 , G11B33/1473 , F16C2370/12
摘要： A hydrodynamic bearing unit includes a shaft, a sleeve rotatably disposed over the shaft and defining a plurality of spaced-apart hydrodynamic journal bearings, an annular axial thrust plate secured to the shaft to form a shaft subassembly and having a first radial surface in facing confrontation with a shoulder of the sleeve and defining a first hydrodynamic thrust bearing, a thrust bushing secured to the sleeve to form a sleeve subassembly and having a bearing surface in overlying facing engagement with a second radial surface of the annular axial thrust plate to form a second hydrodynamic thrust bearing, a seal for hydrodynamic lubricant defined within an annular Vee groove located adjacent to the shaft and having an apex converging toward the second hydrodynamic thrust bearing, a motor for rotating the sleeve subassembly relative to the shaft subassembly, and hydrodynamic lubricant within the annular Vee groove, the lubricant being retained in place by capillary force in the absence, of rotation, and by centrifugal force in the presence of relative rotation between the subassemblies. A secondary seal is also described.
摘要翻译： 流体动力轴承单元包括轴，可旋转地设置在轴上并限定多个间隔开的流体动力轴颈轴承的套筒，固定到轴的环形轴向推力板，以形成轴子组件，并且具有面对面的第一径向表面 具有所述套筒的肩部并且限定第一流体动力推力轴承，固定到所述套筒以形成套筒子组件并具有与所述环形轴向推力板的第二径向表面面对接合的支承表面的推力衬套，以形成第二流体动力推力轴承 流体动力推力轴承，用于流体动力润滑剂的密封件，其限定在邻近轴并且具有朝向第二流体动力推力轴承收敛的顶点的环形V形槽内;用于使套筒子组件相对于轴子组件旋转的电动机，以及内部流体动力学润滑剂 环形V形槽，润滑剂通过毛细管力保持在适当的位置 e，旋转，以及在子组件之间存在相对旋转的情况下通过离心力。 还描述了二次密封。
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