公开(公告)号：US4974639A

公开(公告)日：1990-12-04

申请号：US416729

申请日：1989-10-03

申请人： Giovanni Maitan ,  Luigi Corazzola ,  Enrico Fin ,  Giampietro F. Aggradi

发明人： Giovanni Maitan ,  Luigi Corazzola ,  Enrico Fin ,  Giampietro F. Aggradi

IPC分类号： D03D39/22 ,  D03D49/12

CPC分类号： D03D49/12

摘要： A warp yarn tensioning device for a loom, in which the warp yarns are wound about a compensator roller through an arc of approximately 180.degree.. The roller is movable against the action of counteracting springs either by rotation or by translation in the direction of the thus wound substantially parallel warp yarns and is supported about an axis by bearings. The device operates in feeding the shed with yarns from the warp beam and in maintaining a constant yarn tension during loom operation. This is accomplished by supporting the compensator roll to undergo only a small amount of swing or translational movement in order to follow the warp yarn tension variations.

摘要翻译： 一种用于织机的经纱张紧装置，其中经纱通过大约180°的弧线卷绕在补偿辊上。 辊可以通过旋转或通过沿这样缠绕的基本上平行的经纱的方向平移来抵抗反作用弹簧的作用而移动，并且通过轴承围绕轴支撑。 该装置通过纱线从经线进给纱线，并且在织机操作期间保持恒定的纱线张力。 这是通过支撑补偿辊来进行仅少量的摆动或平移运动来实现的，以便跟随经纱张力变化。

公开(公告)号：US5207291A

公开(公告)日：1993-05-04

申请号：US862229

申请日：1992-04-02

申请人： Vasco Mezzedimi ,  Giampietro F. Aggradi

发明人： Vasco Mezzedimi ,  Giampietro F. Aggradi

IPC分类号： F04D29/046 ,  F04D29/10 ,  F16J15/447

CPC分类号： F04D29/104 ,  F16J15/4476

摘要： A barrier system for the lubricating oil for the bearings of a centrifugal compressor with labyrinth seals installed in a confined environment, consisting of a disc concentrically rigid with the rotating compressor shaft in the chamber facing the bearing situated on the compressor suction side, in a position between said bearing and the relative suction side labyrinth seal, the disc having an inverted U-shaped rim housing a stator ring rigid with the wall of said chamber and arranged concentric with said shaft, which with said rotating disc forms a small passage continuously fed, and kept filled by the centrifugal effect of said rotating disc, with barrier oil bled from the lubricating oil feed, said stator ring being provided, on that side facing the disc, with a wedge which is inserted into a corresponding cavity in the disc, and with an annular deflector tooth projecting beyond the outer edge of said disc cavity.

摘要翻译： 一种用于具有迷宫式密封件的离心式压缩机的轴承的润滑油的屏障系统，该离心式压缩机具有迷密密封件，该迷宫式密封件安装在密闭环境中，该盘式密封件包括与位于压缩机吸入侧的轴承座的旋转压缩机轴同心的盘， 在所述轴承和所述相对吸力侧迷宫式密封件之间，所述盘具有倒置的U形边缘，其容纳与所述室的壁刚性的定子环，并且与所述轴同心地布置，所述轴与所述旋转盘形成连续供给的小通道， 并且通过所述旋转盘的离心效应保持填充，其中从润滑油进料排出阻挡油，所述定子环在面向盘的一侧上设置有插入盘中的相应空腔中的楔形物，以及 其中环形偏转器齿突出超过所述盘腔的外边缘。