PUMP WITH A RESILIENT SEAL
    56.
    发明申请
    PUMP WITH A RESILIENT SEAL 有权
    具有活力密封的泵

    公开(公告)号:US20120034122A1

    公开(公告)日:2012-02-09

    申请号:US13265510

    申请日:2010-04-21

    Abstract: A pump comprises a housing, with an interior defining a rotor path, an inlet formed in the housing at a first position on said rotor path, an outlet formed in the housing at a second position on said rotor path spaced from said first position. A rotor is rotatable in the housing with a first surface that seals against the housing. A second surface is formed on said rotor circumferentially spaced from said first surface and forms a chamber that travels around said rotor path to convey fluid from the inlet to the outlet. A resilient seal formed with the housing is located on the rotor path to prevent fluid flow from said outlet to said inlet past the seal. A passage may be provided to supply fluid to an under surface of the seal at a pressure that acts to urge the seal against the rotor.

    Abstract translation: 泵包括壳体,其具有限定转子路径的内部,在所述壳体中在所述转子路径上的第一位置处形成的入口,在所述转子路径上与所述第一位置间隔开的第二位置处形成在所述壳体中的出口。 转子可以在壳体中旋转,其中第一表面密封住壳体。 第二表面形成在所述转子上,与所述第一表面周向间隔开,并形成围绕所述转子路径行进的腔室,以将流体从入口传送到出口。 与壳体形成的弹性密封件位于转子路径上,以防止流体从所述出口流到所述入口经过密封件。 可以提供通道以将流体以用于将密封件推向转子的压力提供给密封件的下表面。

    ECCENTRIC SCREW PUMP
    57.
    发明申请
    ECCENTRIC SCREW PUMP 审中-公开
    ECCENTRIC螺丝泵

    公开(公告)号:US20110305589A1

    公开(公告)日:2011-12-15

    申请号:US13203268

    申请日:2010-03-02

    Inventor: Ralf Daunheimer

    Abstract: The invention relates to an eccentric screw pump (100), in particular for conveying viscous, highly viscous and abrasive media, having a longitudinal direction L, having a conical, helically wound, at least single-start rotor (1) having a gradient h, having at least one eccentricity (e1, e2, e3, . . . en) and at least one cross-section d that is rotatably arranged in a single or multi-start conical stator (2) wherein a plurality of chambers (3, 4, 5 . . . n) each having a volume (V3, V4, V5. . . Vn) is formed between the rotor (1) and stator (2) that serve to convey the medium and wherein the chambers (3, 4, 5 . . . n) between the stator and the rotor arc limited by a sealing line D. The volumes (V3, V4, V5 . . . Vn) of each individual chamber (3, 4, 5 . . . n) between the stator (2) and the rotor (1) are equal.

    Abstract translation: 本发明涉及一种偏心螺杆泵(100),特别是用于输送具有纵向方向L的粘性,高粘度和研磨介质,其具有圆锥形螺旋缠绕的至少单启动转子(1),其具有梯度h 具有至少一个偏心(e1,e2,e3,...)和至少一个可旋转地布置在单启动或多启动锥形定子(2)中的横截面d,其中多个室(3, 在转子(1)和定子(2)之间形成有用于输送介质的体积(V3,V4,V5 ... Vn)的各个(4,5)..., 定子和转子之间的距离,5 ...,n)由密封线D限制。每个单独的腔室(3,4,5,...,n)之间的体积(V3,V4,V5。... Vn) 定子(2)和转子(1)相等。

    ECCENTRIC SCREW PUMP
    58.
    发明申请
    ECCENTRIC SCREW PUMP 有权
    ECCENTRIC螺丝泵

    公开(公告)号:US20090214369A1

    公开(公告)日:2009-08-27

    申请号:US12162150

    申请日:2007-01-25

    CPC classification number: F04C2/1071 F04C15/0019 F04C2250/201 F05C2203/08

    Abstract: The invention relates to an eccentric screw pump with a annular outer part (10; 40; 74) and an inner part (12; 42; 72) arranged therein, the interior of the outer part (10; 40; 74) and the exterior of the inner part (12; 42; 72) tapering in a complementary manner towards an axial end (16; 46; 70). In the axial direction (X, W), the inner part (12; 42; 72) and the outer part (10; 40; 74) are movably received in relation to each other and the inner part (12; 42; 72) and/or the outer part (10; 40; 74) are configured in such a manner that pressure applied to the pressure side of the eccentric screw pump generates a force that acts upon the inner part (12; 42; 72) axially to the direction in which the inner part (12; 42; 72) tapers and/or a force that acts upon the outer part (10; 40; 74) in an opposite axial direction.

    Abstract translation: 本发明涉及一种具有环形外部部分(10; 40; 74)和布置在其中的内部部分(12; 42; 72)的偏心螺杆泵,外部部分(10; 40; 74)的内部和外部 所述内部部分(12; 42; 72)以互补的方式朝向轴向端部(16; 46; 70)逐渐变细。 在轴向(X,W)上,内部部分(12; 42; 72)和外部部分(10; 40; 74)相对于彼此可移动地接收,内部部分(12; 42; 72) 和/或所述外部部件(10; 40; 74)构造成使得施加到所述偏心螺杆泵的压力侧的压力产生作用在所述内部部件(12; 42; 72)上的力, 内部部分(12; 42; 72)渐缩的方向和/或在相反的轴向作用在外部部分(10; 40; 74)上的力。

    Vacuum pumps
    59.
    发明申请
    Vacuum pumps 有权
    真空泵

    公开(公告)号:US20010024620A1

    公开(公告)日:2001-09-27

    申请号:US09740085

    申请日:2000-12-19

    CPC classification number: F04C18/084 F04C18/16 F04C2220/12 F04C2250/201

    Abstract: A vacuum pump having a screw mechanism and comprising two externally threaded rotors mounted on respective shafts in a pump body and adapted for counter-rotation therein with intermeshing of the rotor threads with close tolerances between the threads and internal surfaces of the pump body in order that gas may be pumped from a pump inlet to a pump outlet by action of the rotor threads, the root diameter of each rotor increases and the thread diameter of each rotor decreases in a direction from the pump inlet to the pump outlet, and wherein the pitch of the rotor threads decreases in a direction from the pump inlet to the pump outlet.

    Abstract translation: 一种真空泵,其具有螺旋机构并且包括两个外螺纹转子,其安装在泵体中的相应轴上并且适于在其中反向旋转,其中转子螺纹与螺纹和泵体的内表面之间的紧公差相互啮合,以便 气体可以通过转子螺纹的作用从泵入口泵送到泵出口,每个转子的根直径增加,并且每个转子的螺纹直径在从泵入口到泵出口的方向上减小,并且其中间距 的转子螺纹在从泵入口到泵出口的方向上减小。

    Vacuum pumps
    60.
    发明授权
    Vacuum pumps 有权
    真空泵

    公开(公告)号:US06200116B1

    公开(公告)日:2001-03-13

    申请号:US09334236

    申请日:1999-06-16

    Abstract: A vacuum pump incorporating a screw mechanism section and comprising two externally threaded rotors mounted on respective shafts in a pump body. The externally threaded rotors are adapted for counter-rotation in a first chamber within the pump body with intermeshing of the rotor threads in order to pump gas from a pump inlet by action of the rotors. The root diameter of each rotor increases and the thread diameter of each rotor decreases in a direction from pump inlet and in which the gas is pumped. The two externally threaded rotors are positioned in the pump body by means of shaft bearings located inside cavities in the rotors. The cavities are sealed at the ends closest to the pump inlet.

    Abstract translation: 一种包括螺旋机构部分的真空泵,包括安装在泵体内的相应轴上的两个外螺纹转子。 外螺纹转子适于在泵主体内的第一室中进行反向转动,其中转子螺纹相互啮合,以便通过转子的作用从泵入口泵送气体。 每个转子的根直径增加,并且每个转子的螺纹直径在从泵入口的方向上减小,并且其中泵送气体。 两个外螺纹转子通过位于转子内腔内的轴承座定位在泵体内。 空腔在最靠近泵入口的端部密封。

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