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18 条记录 (耗时 0.018 秒)

    Bearing support for a twin-shaft pump
    11.
    发明授权
    Bearing support for a twin-shaft pump 失效
    双轴泵轴承支撑

    公开(公告)号：US4917583A

    公开(公告)日：1990-04-17

    申请号：US194252

    申请日：1988-05-16

    申请人： Heinz Frings ,  Karl-Heinz Ronthaler ,  Ralf Steffens

    发明人： Heinz Frings ,  Karl-Heinz Ronthaler ,  Ralf Steffens

    IPC分类号： F04C18/18 ,  F01C21/02 ,  F04C18/08 ,  F04C25/02 ,  F04C29/00 ,  F04C29/04

    CPC分类号： F04C18/126 ,  F01C21/02 ,  F04C18/086 ,  F04C29/005 ,  F04C29/04

    摘要： A twin-shaft pump includes a working chamber; a first side plate and an opposite, second side plate bounding the working chamber; and two impellers accommodated in the working chamber and each having a first end face and an opposite, second end face. Each first end face is adjacent and oriented toward the first side plate and each second end face is adjacent and oriented towards the second end plate. There are further provided impeller bearings adjacent the first and second end faces of each impeller; and a pump drive situated adjacent the first end faces and being operatively connected to the impellers. A dish-shaped component is situated adjacent at least one of the end faces of at least one of the impellers. The dish-shaped component has an inner wall defining a dish-shaped cavity accommodating an impeller bearing which is in a supporting contact with the inner wall of the component. A stationarily held stub shaft is in alignment with the impeller bearing and projects into the cavity and the impeller bearing received therein for supporting the impeller bearing.

    摘要翻译： 双轴泵包括工作室; 第一侧板和与工作室相邻的相对的第二侧板; 以及容纳在所述工作室中的两个叶轮，每个具有第一端面和相对的第二端面。 每个第一端面相邻并且朝向第一侧板定向，并且每个第二端面相邻并且朝向第二端板定向。 还提供了与每个叶轮的第一和第二端面相邻的叶轮轴承; 以及位于第一端面附近并且可操作地连接到叶轮的泵驱动器。 碟形部件位于至少一个叶轮的至少一个端面附近。 碟形部件具有内壁，该内壁限定了容纳有与部件的内壁支撑接触的叶轮轴承的盘形腔。 固定的短轴与叶轮轴承对准，并且突出到空腔中，并且容纳在其中的叶轮轴承用于支撑叶轮轴承。

    SPINDLE COMPRESSOR
    13.
    发明申请
    SPINDLE COMPRESSOR 审中-公开
    主轴压缩机

    公开(公告)号：US20150118093A1

    公开(公告)日：2015-04-30

    申请号：US14400134

    申请日：2013-05-07

    申请人： Ralf Steffens

    发明人： Ralf Steffens

    IPC分类号： F04C18/08 ,  F04C29/04 ,  F04C18/14

    CPC分类号： F04C18/084 ,  F04C18/14 ,  F04C18/16 ,  F04C29/04

    摘要： A spindle rotor pair of a spindle compressor has a two-toothed spindle rotor and a three-toothed spindle rotor meshing the other without contact. The wrap angle related to the two-toothed spindle rotor is at least 800 angular degrees. A range of at least 30 m/sec is achieved as the mean circumferential speed of the rotor head. In the transverse section, both spindle rotors have arc sectors and cycloid profile contour flanks. In the case of the two-toothed spindle rotor, they are primarily above its gear-tooth pitch circle and of convex design, however, in the case of the three-toothed spindle rotor, they are below its ear-tooth pitch circle and of concave, i.e., hollow, design. Preferably, the transverse sections of each spindle rotor are symmetrical in a way that in each transverse section, the centre of gravity of the profile surfaces comes to lie on the respective rotor pivot point.

    摘要翻译： 主轴压缩机的主轴转子对具有双齿主轴转子和三齿主轴转子啮合而不接触。 与双齿主轴转子相关的包角至少为800度角。 作为转子头的平均圆周速度，实现至少30m / sec的范围。 在横截面中，两个主轴转子都具有弧形部分和摆线轮廓轮廓侧面。 在双齿主轴转子的情况下，它们主要位于其齿轮齿节圆和凸形设计之上，然而，在三齿主轴转子的情况下，它们在其耳齿节圆以下 凹形，即中空，设计。 优选地，每个主轴转子的横截面以对称的方式对称，在每个横截面中，轮廓表面的重心位于相应的转子枢轴点上。

    Drive mechanism for a screw pump
    15.
    发明授权
    Drive mechanism for a screw pump 失效
    螺杆泵的驱动机构

    公开(公告)号：US06666672B1

    公开(公告)日：2003-12-23

    申请号：US10181998

    申请日：2002-07-23

    申请人： Ralf Steffens

    发明人： Ralf Steffens

    IPC分类号： F04C1816

    CPC分类号： F04C18/16 ,  F04C29/005 ,  Y10T74/19079 ,  Y10T74/19088 ,  Y10T74/19647

    摘要： The invention concerns a screw pump (10) that is configured as a dual-shaft positive displacement motor and that comprises two positive displacement spindle rotors (1 and 2) rotating in opposite directions and having external toothing. In order to provide a quiet and simple drive mechanism for said rotors (1 and 2) while ensuring synchronization and increased rotational speed, contrate gear-like gearwheels (3 and 4) are mounted on both rotors (1 and 2) rotating in opposite directions or the rotor spindles in a corresponding plane, in which a larger contrate gear-like driving toothed wheel (5) engages in such a way that both spindle rotors (1 and 2) are driven in opposite directions at an increased rotational speed, wherein said contrate gear similarity also includes a crown gear with internal and external toothing working in connection with front toothed wheels or bevel gears and the possibility that only the driving toothed wheel (5) or only the driven gearwheels (3 and 4) are contrate gear-like.

    摘要翻译： 本发明涉及一种构造为双轴正位移电动机的螺杆泵（10），其包括沿相反方向旋转并具有外齿的两个正位移主轴转子（1和2）。 为了在确保同步和提高转速的同时提供所述转子（1和2）的安静和简单的驱动机构，在齿轮（1和2）上以相反方向旋转的两个转子（1和2）安装齿轮状齿轮（3和4） 或转子主轴在相应的平面中，其中较大的配对齿轮状的驱动齿轮（5）以使得两个主轴转子（1和2）以增加的转速在相反方向上被驱动的方式接合，其中所述 与齿轮相似性也包括具有与前齿轮或锥齿轮连接的内部和外部齿轮的冠齿轮，以及仅驱动齿轮（5）或仅从动齿轮（3和4）与齿轮类似 。

    Vacuum pump
    16.
    发明授权
    Vacuum pump 失效
    真空泵

    公开(公告)号：US5904473A

    公开(公告)日：1999-05-18

    申请号：US973884

    申请日：1997-12-17

    申请人： Christian Dahmlos ,  Dietmar Rook ,  Ralf Steffens

    发明人： Christian Dahmlos ,  Dietmar Rook ,  Ralf Steffens

    IPC分类号： F01C21/02 ,  F04C18/16 ,  F04C25/02 ,  F04C29/00 ,  F04C29/02 ,  F04C29/04 ,  F04B17/00

    CPC分类号： F01C21/02 ,  F04C18/16 ,  F04C29/005 ,  F04C29/0085 ,  F04C2220/12 ,  F04C2240/402 ,  F04C2240/51

    摘要： A vacuum pump contains two rotary displacement rotor (8) that engage each other, in particular in a convoluted manner, inside in expansion chamber through which flows a stream in the axial direction. The rotors are mounted in cantilever at the delivery side and are linked each to a driving motor (35, 36). Each rotor (8) forms together with its shaft (20), a stationary bearing body (7) and a bearing (21, 22) delimited by the shaft (20) and the bearing body (7) a module that may be removed as a single unit from the housing (3). The rotor (35) of the driving motor is preferably also part of said module.

    摘要翻译： PCT No.PCT / EP96 / 02630 Sec。 371 1997年12月17日第 102（e）1997年12月17日PCT PCT 1996年6月18日PCT公布。 出版物WO97 / 01037 日期1997年1月9日真空泵包含两个旋转位移转子（8），其特别是以回旋方式彼此接合，在膨胀室内部，流体沿轴向流动。 转子在输送侧安装在悬臂中，并且各自连接到驱动电动机（35,36）。 每个转子（8）与其轴（20），固定轴承体（7）和由轴（20）和轴承体（7）限定的轴承（21,22）一起形成一个可以作为 一个单元从外壳（3）。 驱动马达的转子（35）优选地也是所述模块的一部分。

    Double-shaft vacuum pump with synchronization gears
    17.
    发明授权
    Double-shaft vacuum pump with synchronization gears 失效
    双轴真空泵带同步齿轮

    公开(公告)号：US5035590A

    公开(公告)日：1991-07-30

    申请号：US481746

    申请日：1990-02-15

    申请人： Ralf Steffens

    发明人： Ralf Steffens

    IPC分类号： F04C18/18 ,  F01C17/02 ,  F04C18/12 ,  F04C29/00 ,  F16H55/08

    CPC分类号： F16H55/0806 ,  F01C17/02 ,  F04C18/126 ,  F04C29/005 ,  F16H57/0006 ,  Y10T74/19972

    摘要： A double-shaft vacuum pump with pistons (3,4) rotating without contact in the pump chamber (8) and with synchronization gears (16, 17) located in a side chamber (15). In order to dispense with an oil supply in the side chamber the teeth of the synchronization gears (16, 17) are shaped in such a way that contact between the tooth flanks (26) is limited to the immediate vicinity of the pitch circle (29). If any lubrication is needed, it can be supplied by bearing grease suitable for vacuum applications. The side chamber cover (27) is preferably shaped as a "figure-8" to conform to the peripheries of the synchronization gears (16, 17), and a cooling system for the gears may be provided.

    摘要翻译： 一种双轴真空泵，其具有在泵室（8）中旋转而没有接触的活塞（3,4）和位于侧室（15）中的同步齿轮（16,17）。 为了省略侧室中的供油，同步齿轮（16,17）的齿被成形为使得齿面（26）之间的接触被限制在节圆（29）的紧邻附近 ）。 如果需要润滑，可以通过适用于真空应用的轴承润滑脂来提供润滑。 侧室盖（27）优选地成形为“图8”以符合同步齿轮（16,17）的周边，并且可以提供用于齿轮的冷却系统。