Vane pump for delivering pasty substances
    71.
    发明授权
    Vane pump for delivering pasty substances 失效
    用于递送过期物质的VANE泵

    公开(公告)号:US5069608A

    公开(公告)日:1991-12-03

    申请号:US343283

    申请日:1989-04-26

    申请人: Siegfried Rather

    发明人: Siegfried Rather

    摘要: A vane pump delivers pasty materials, particularly sausage stuffing, for the purpose of filling doses of the stuffing into sausage cases. The flow of material into the pump chamber generally takes place by a stuffing device in the hopper and by the action of the vacuum to which the vane pump is exposed. The degree of filling and therefore the dosing accuracy is improved by providing a curved portion in the transition area between the inner wall of the cylindrical part of the cup-shaped pump casing and the base part of the latter receiving the pump rotor mounting.

    摘要翻译: 叶片泵提供糊状材料,特别是香肠馅,用于将馅料的剂量填充到香肠盒中。 进入泵室的材料流通常由料斗中的填料装置和叶片泵所暴露的真空的作用发生。 通过在杯状泵壳体的圆筒部的内壁与容纳泵的转子的安装的基部之间的过渡区域内设置弯曲部,能够提高填充度和配量精度。

    Regulator valve for an ink marking system
    72.
    发明授权
    Regulator valve for an ink marking system 失效
    用于墨水标记系统的调节阀

    公开(公告)号:US4971527A

    公开(公告)日:1990-11-20

    申请号:US176228

    申请日:1988-03-30

    申请人: George H. Dick

    发明人: George H. Dick

    摘要: A unitary pump, regulator valve/pulsation dampener, and interconnecting passageways is provided. The regulator valve/pulsation dampener includes a flexible member disposed in a chamber arranged between the fluid input and fluid output. The diaphragm flexes as a function of the pressure in the chamber to control the opening and closing of a bypass valve member and, in addition, damps out both high and low frequency pulsations generated in the ink by the pump. When the pressure in the system increases beyond a predetermined limit the valve member is opened to divert some of the fluid flow into a bypass passageway until the pressure falls below the predetermined limit. The pressure limit in the system can be varied by adjusting the external pressure applied to the flexible member using an adjustment screw and compression spring.

    Hydraulic pumps or motors and hydrostatic transmitting systems
    73.
    发明授权
    Hydraulic pumps or motors and hydrostatic transmitting systems 失效
    液压泵或电机和静液压传动系统

    公开(公告)号:US4932504A

    公开(公告)日:1990-06-12

    申请号:US386295

    申请日:1989-07-27

    申请人: Yue Zheng

    发明人: Yue Zheng

    CPC分类号: F04C14/185 F16H39/06

    摘要: An axial variable capacity rotary pump which yields a stepless change of capacity. The pump has a casing with an inlet and outlet, at least one rotary member with engaging elements mounted on the periphery of the rotary member for engaging a mating member, and a pair of axial sealing element which seal either axial side of the rotary member. One sealing element moves together with the rotary member axially to change a length of a sealed working chamber between the members, thereby changing the delivery capacity per revolution of the pump.