Pump having an inner and outer rotor

    公开(公告)号:US09765773B2

    公开(公告)日:2017-09-19

    申请号:US14222775

    申请日:2014-03-24

    CPC classification number: F04C2/103 F04C2/102 F04C2250/102 F04C2270/16

    Abstract: A pump includes: a housing in which a pump chamber that is a columnar space is formed, the pump chamber being provided with a suction-side groove and a discharge-side groove that are formed as recesses; an outer rotor rotatably disposed in the pump chamber and having internal teeth on an inner periphery of the outer rotor; and an inner rotor disposed radially inward of the internal teeth of the outer rotor, and having external teeth formed on an outer periphery of the inner rotor and meshed with the internal teeth of the outer rotor. A portion of an inner edge of the discharge-side groove is located radially inward of a locus of tooth tips of the internal teeth of the outer rotor, the portion being located in a second half region of the discharge-side groove in a rotational direction of the inner rotor and the outer rotor.

    LIQUID PUMP AND RANKINE CYCLE APPARATUS
    4.
    发明申请
    LIQUID PUMP AND RANKINE CYCLE APPARATUS 有权
    液体泵和排气循环装置

    公开(公告)号:US20160186746A1

    公开(公告)日:2016-06-30

    申请号:US14936726

    申请日:2015-11-10

    Abstract: A liquid pump of the present disclosure includes a container, a shaft, a bearing, a pump mechanism, a storage space, and a liquid supply passage. The shaft is disposed in the container. The bearing supports the shaft. The pump mechanism pumps a liquid by rotation of the shaft. The storage space is defined in the container at a position outside the pump mechanism. The storage space stores the liquid to be taken into the pump mechanism or the liquid to be discharged to outside of the container after being expelled from the pump mechanism. The liquid supply passage is a flow path including an inlet open to the storage space and supplying the liquid stored in the storage space to the bearing.

    Abstract translation: 本公开的液体泵包括容器,轴,轴承,泵机构,储存空间和液体供应通道。 轴设置在容器中。 轴承支撑轴。 泵机构通过轴的旋转泵送液体。 存储空间在泵机构外部的位置处被限定在容器中。 存储空间在从泵机构排出之后将待进入泵机构的液体或要排出的液体存储在容器外部。 液体供给通道是包括通向存储空间的入口并将存储在存储空间中的液体供应到轴承的流动路径。

    PUMP ROTOR AND INTERNAL GEAR PUMP USING THE SAME
    5.
    发明申请
    PUMP ROTOR AND INTERNAL GEAR PUMP USING THE SAME 有权
    泵转子和内齿轮泵使用相同

    公开(公告)号:US20140341769A1

    公开(公告)日:2014-11-20

    申请号:US14345395

    申请日:2013-02-28

    Abstract: A tooth profile of an inner rotor 2 is formed by an envelope of a group of circular arcs of a locus circle C having a center on a trochoidal curve TC. The envelope of the group of circular arcs is formed by rolling a rolling circle having a predetermined diameter along a base circle without slipping and drawing the trochoidal curve TC based on a point distant from the center of the rolling circle by a distance equivalent to an amount of eccentricity between the two rotors. A diameter d2 of the locus circle C is constant until one point between an addendum point and a dedendum point of the inner rotor and changes from the one point such that a diameter d2B at the dedendum point becomes larger than a diameter d2T at the addendum point of the inner rotor.

    Abstract translation: 内转子2的齿廓由具有中心在摆线曲线TC上的轨迹圈C的一组圆弧的包络线形成。 一组圆弧的包络线通过沿着基圆滚动具有预定直径的滚动圆而形成,而不滑动,并且基于远离滚动圆的中心的距离等于量的量来摆动摆线曲线TC 两个转子之间的偏心度。 轨迹圆C的直径d2恒定,直到内转子的齿顶点和齿根点之间的一个点从一点变化,使得齿根点处的直径d2B变得大于齿顶点处的直径d2T 的内转子。

    PUMP
    6.
    发明申请
    PUMP 有权

    公开(公告)号:US20140294644A1

    公开(公告)日:2014-10-02

    申请号:US14222775

    申请日:2014-03-24

    CPC classification number: F04C2/103 F04C2/102 F04C2250/102 F04C2270/16

    Abstract: A pump includes: a housing in which a pump chamber that is a columnar space is formed, the pump chamber being provided with a suction-side groove and a discharge-side groove that are formed as recesses; an outer rotor rotatably disposed in the pump chamber and having internal teeth on an inner periphery of the outer rotor; and an inner rotor disposed radially inward of the internal teeth of the outer rotor, and having external teeth formed on an outer periphery of the inner rotor and meshed with the internal teeth of the outer rotor. A portion of an inner edge of the discharge-side groove is located radially inward of a locus of tooth tips of the internal teeth of the outer rotor, the portion being located in a second half region of the discharge-side groove in a rotational direction of the inner rotor and the outer rotor.

    Abstract translation: 泵包括:形成有作为柱状空间的泵室的壳体,所述泵室设置有形成为凹部的吸入侧槽和排出侧槽; 外转子,其可旋转地设置在所述泵室中,并且在所述外转子的内周上具有内齿; 以及内转子,其设置在所述外转子的内齿的径向内侧,并且具有形成在所述内转子的外周上并与所述外转子的内齿啮合的外齿。 排出侧槽的内缘的一部分位于外转子的内齿的齿尖轨迹的径向内侧,该部分位于排出侧槽的第二半区域的旋转方向 的内转子和外转子。

    GEAR PUMP
    9.
    发明申请
    GEAR PUMP 有权
    齿轮泵

    公开(公告)号:US20110268598A1

    公开(公告)日:2011-11-03

    申请号:US12769702

    申请日:2010-04-29

    Abstract: A gear pump having double-helical gears with bearing assembly seals and gear end seals which provided double seal interfaces between the pump cavity and bearing cups having disposed therein bearing assemblies for supporting pump shafts for rotation. The double seal interfaces preclude pumped fluid, particularly contaminated fluid including entrained abrasives from making contact with the bearing assemblies. An adjustable packing seal mechanism, a gear gap adjustment mechanism, a fluid pressure relief system, and pump heat exchanger features are also disclosed.

    Abstract translation: 具有带有轴承组件密封件和齿轮端部密封件的双螺旋齿轮的齿轮泵,其在泵腔和轴承杯之间提供双重密封接口,其中设置有用于支撑用于旋转的泵轴的轴承组件。 双重密封接口排除泵送的流体,特别是污染的流体,包括夹带的磨料与轴承组件接触。 还公开了可调节的填料密封机构,齿轮间隙调节机构,流体压力释放系统和泵的热交换器特征。

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