利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

45 条记录 (耗时 0.011 秒)

    Hollow piston for hydrostatic machines
    41.
    发明授权
    Hollow piston for hydrostatic machines 失效
    空心活塞用于静液压机

    公开(公告)号：US4191095A

    公开(公告)日：1980-03-04

    申请号：US854053

    申请日：1977-11-23

    申请人： Walter Heyl

    发明人： Walter Heyl

    IPC分类号： F15B15/14 ,  B23P15/10 ,  F01B3/00 ,  F16J1/00 ,  F15B21/04 ,  F16K1/00 ,  F16K1/08

    CPC分类号： B23P15/10 ,  F01B3/0085

    摘要： A hollow piston for a hydrostatic piston machine and especially for a swash-plate-type axial-piston pump or motor, comprises a hollow outer cylinder member which is formed at one end with a ball head and at the other end with a cover. Extending centrally through this hollow piston is a central post having its opposite ends secured to or engaging the opposite ends of the outer piston member and formed with a central bore communicating between a passage in the cover and a passage in the ball head. At least one of these ends of the central post is juxtaposed with a respective end of the piston and the juxtaposed ends are formed with a conical surface and an edge engaging this surface to seal the post to the outer member.

    摘要翻译： 用于静液压活塞机的中空活塞，特别是用于旋转斜盘式轴向柱塞泵或电动机的中空活塞包括中空的外筒件，该中空的外筒件在一端形成有球头，另一端形成有盖。 通过该中空活塞中心延伸的是中心柱，其中相对的端部固定到外活塞构件的相对端或接合外活塞构件的相对端，并且形成有在盖中的通道和球头中的通道之间连通的中心孔。 中心柱的这些端部中的至少一个与活塞的相应端并置，并置的端部形成有锥形表面和与该表面接合的边缘，以将柱密封到外部构件。

    Pressure reducing valve spool
    42.
    发明授权
    Pressure reducing valve spool 失效
    减压阀减压阀

    公开(公告)号：US3791413A

    公开(公告)日：1974-02-12

    申请号：US3791413D

    申请日：1972-03-23

    申请人： LESLIE CO

    发明人： MULLER J ,  COOPER J

    IPC分类号： F16K47/04 ,  F16K1/08 ,  F16K31/12

    CPC分类号： F16K47/04 ,  Y10T137/86734 ,  Y10T137/86767

    摘要： Several embodiments are disclosed of various spool configurations for controlling the flow of an expandable fluid from a high pressure zone to a zone of lesser pressure. The spools structurally conform to a novel principle of controlling the expansion of the fluid from a point of initial throttling throughout the entire expansion profile provided by the valve in such a way that overexpansion of the fluid at any given point is substantially reduced or entirely eliminated.

    摘要翻译： 公开了用于控制可膨胀流体从高压区域到较低压力区域的流动的各种阀芯配置的几个实施例。 阀芯在结构上符合一个新颖的原理，即控制从阀门的整个膨胀曲线的初始节流点开始的流体膨胀，使得在任何给定点处的流体的过度膨胀基本上被减少或完全消除。