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    • 55. 发明申请
    • Gear Machine with Eccentricity at the Gearwheels
    • 减速机偏心齿轮机
    • US20150308428A1
    • 2015-10-29
    • US14699397
    • 2015-04-29
    • Robert Bosch GmbH
    • Guido BredenfeldMarkus StahlChristoph Cholewa
    • F04C2/08
    • F04C2/084F04C2/086F04C2/18F04C15/0026F04C15/0065F04C18/082F04C2230/602F04C2240/50F04C2240/56
    • A gear machine comprises a housing, at least two gearwheels positioned within the housing, and a bearing body defining a circular-cylindrical outer surface segment and a bearing bore. The at least two gearwheels configured to mesh in external engagement with each other. At least one of the gearwheels includes at least one bearing journal rotatably positioned within the bearing bore. The bearing body is positioned within the housing with the circular-cylindrical outer surface segment engaging a corresponding bearing surface defined on the inside of the housing. Each of the at least two gearwheels includes a plurality of tooth tips configured to engage a corresponding sealing surface defined on the inside of the housing. At least one segment of at least one of the sealing surface and the bearing bore is eccentric with respect to the circular-cylindrical outer surface segment of the bearing body. A method of production is also provided.
    • 齿轮机包括壳体,位于壳体内的至少两个齿轮和限定圆柱形外表面段和轴承孔的轴承体。 所述至少两个齿轮被构造成彼此外啮合地啮合。 齿轮中的至少一个包括可旋转地定位在轴承孔内的至少一个轴承轴颈。 轴承体定位在壳体内,圆柱形外表面段接合限定在壳体内侧的对应支承表面。 所述至少两个齿轮中的每一个包括构造成接合限定在所述壳体的内侧上的对应密封表面的多个齿顶。 密封表面和轴承孔中的至少一个的至少一个部分相对于轴承体的圆柱形外表面段是偏心的。 还提供了一种生产方法。
    • 56. 发明申请
    • DOWNHOLE MOTOR COUPLING SYSTEMS AND METHODS
    • 卧式电机联轴器系统和方法
    • US20150034388A1
    • 2015-02-05
    • US14445298
    • 2014-07-29
    • National Oilwell Varco, L.P.
    • Dong P. PhungSorin Gabriel Teodorescu
    • E21B17/03E21B17/04
    • E21B4/006F04C2/1073F04C13/008F04C15/0065
    • A drilling system includes a drillstring and a power section further including a stator having a stator axis and a rotor within the stator. The rotor rotates eccentrically within the stator in response to fluid flowing therebetween. Additionally, the system includes a coupling section including first, second, and third rotation members having a first, second, and third axes, respectively. The third rotation member is coupled to the first and second rotation members. The third rotation member is configured to move radially relative to the first and second rotation members as the first, second, and third rotation members rotate about the first, second, and third axes, respectively. Further, the system includes an input shaft coupled to the rotor and first rotation member. The input shaft and first rotation member rotate with the rotor eccentrically to the stator axis and the second rotation member rotates concentrically about the stator axis.
    • 钻井系统包括钻柱和动力部分,其还包括具有定子轴线的定子和定子内的转子。 转子响应于流体在定子内偏心旋转。 另外,该系统包括耦合部分,其包括分别具有第一,第二和第三轴线的第一,第二和第三旋转部件。 第三旋转构件联接到第一和第二旋转构件。 第三旋转构件被构造成当第一,第二和第三旋转构件分别围绕第一,第二和第三轴线旋转时相对于第一和第二旋转构件径向移动。 此外,该系统包括联接到转子和第一旋转构件的输入轴。 输入轴和第一旋转构件随着转子偏心地旋转到定子轴线,并且第二旋转构件围绕定子轴线同心旋转。
    • 60. 发明申请
    • ROTOR DRIVE MECHANISM AND PUMP APPARATUS INCLUDING THE SAME
    • 转子驱动机构和泵装置,包括它们
    • US20120039734A1
    • 2012-02-16
    • US13258134
    • 2010-03-18
    • Noriaki Sakakihara
    • Noriaki Sakakihara
    • F01C1/10
    • F04C2/1073F01C19/005F04C13/008F04C15/0038F04C15/0065F04C15/0073F04C15/0076
    • The present invention provides a rotor drive mechanism capable of reducing the longitudinal size of a pump apparatus and the volume of a fluid accommodating space in a casing, and improving the accuracy of a discharge rate.A rotor drive mechanism 25 is configured to transfer rotation of a driving shaft 38 to an external screw type rotor 22 of a uniaxial eccentric screw pump 23 via a connecting shaft 39, the driving shaft 38 being rotated such that the center thereof is located at a fixed position. The rotor drive mechanism 25 is configured such that: the driving shaft 38 includes an inner space 46 which is open toward the rotor 22; the connecting shaft 39 is inserted in the inner space 46; a rear end portion of the connecting shaft 39 is connected to the driving shaft 38 via a second joint portion 48; a tip end portion of the connecting shaft 39 is connected to the rotor 22 via a first joint portion 47; and a first seal portion 55 seals between an inner peripheral surface of an opening of the driving shaft 38, the opening being open toward the rotor 22, and an outer peripheral surface of the rotor shaft 37 connected to the rotor 22 configured to carry out an eccentric rotational movement.
    • 本发明提供一种转子驱动机构,其能够减小泵装置的纵向尺寸和壳体中的流体容纳空间的体积,并且提高排出速度的精度。 转子驱动机构25经由连接轴39将驱动轴38的旋转传递到单轴偏心螺杆泵23的外螺纹型转子22,驱动轴38旋转,使得其中心位于 固定位置 转子驱动机构25构成为:驱动轴38包括向转子22开口的内部空间46; 连接轴39插入到内部空间46中; 连接轴39的后端部经由第二接合部48与驱动轴38连接, 连接轴39的前端部经由第一接合部47与转子22连接, 并且第一密封部55密封驱动轴38的开口的内周面,开口朝向转子22开口,转子轴37的外周面与转子22连接,外周面被构造成执行 偏心旋转运动。