Transverse internal gear pump
    1.
    发明授权

    公开(公告)号:US10221851B2

    公开(公告)日:2019-03-05

    申请号:US15117274

    申请日:2015-01-30

    申请人: NTN CORPORATION

    摘要: A transverse internal gear pump 1 having a trochoid 4, in which an inner rotor 3 having a plurality of outer teeth is rotatably accommodated within an outer rotor 2 having a plurality of inner teeth, the inner rotor being rotatably accommodated within the outer rotor in an eccentric state and with the outer teeth and the inner teeth meshing, and in which an intake-side volume chamber for taking in a liquid and an ejection-side volume chamber for ejecting liquid taken into the intake-side volume chamber are formed between the inner teeth and the outer teeth; a liquid intake nozzle 9 extending in a non-perpendicular direction with respect to the trochoid rotation surfaces and having a distal end immersed in a liquid reservoir 18; a pump casing 5 in which a recessed portion 5a for accommodating the trochoid is formed; and a pump cover 6.

    INTERNAL GEAR PUMP
    2.
    发明申请
    INTERNAL GEAR PUMP 有权
    内齿轮泵

    公开(公告)号:US20150204325A1

    公开(公告)日:2015-07-23

    申请号:US14420351

    申请日:2013-07-26

    申请人: NTN CORPORATION

    IPC分类号: F04C2/14 F04C15/06

    摘要: Provided is an internal gear pump requiring fewer machining steps, allowing inexpensive manufacture, and offering high safety from the standpoint of function. The internal gear pump 1 comprises: a trochoid 4 in which an inner rotor 3 having a plurality of outer teeth is eccentrically and rotatably accommodated in an outer rotor 2 having a plurality of inner teeth, the outer teeth meshing with the inner teeth, and in which a suction-side chamber for suctioning liquid and a discharge-side chamber for discharging liquid that has been suctioned into the suction-side chamber are formed in between the inner teeth and outer teeth; a casing 5 in which is formed a recess 5a for accommodating the trochoid 4; and a cover 6 for closing off the recess 5a of the casing 5. At least some of the casing 5 is a body injection-molded from a resin composition. The invention also comprises a groove 5d in a portion of the recess 5a of the casing 5 in which the outer periphery is sealed, with a sealing ring 13 installed therein, and bushings 7 made from sintered metal that are provided integrally during injection molding in bolt fixing hole portions.

    摘要翻译: 提供了一种需要更少加工步骤的内齿轮泵,允许廉价的制造,并且从功能的角度提供高安全性。 内齿轮泵1包括:次摆线4,其中具有多个外齿的内转子3偏心并可旋转地容纳在具有多个内齿的外转子2中,外齿与内齿啮合,并且在 在内齿和外齿之间形成有用于吸入液体的吸入侧室和用于排出被吸入吸入侧室的液体的排出侧室; 壳体5,其形成有用于容纳次摆线4的凹部5a; 以及用于封闭壳体5的凹部5a的盖6.壳体5中的至少一个是从树脂组合物注射成型的主体。 本发明还包括在壳体5的凹部5a的一部分中的凹槽5d,其中外周被密封,其中安装有密封环13,以及由在金属螺栓中注射成型期间一体地设置的由烧结金属制成的衬套7 固定孔部分。

    SLIDING BEARING AND IMAGE FORMING APPARATUS
    4.
    发明申请
    SLIDING BEARING AND IMAGE FORMING APPARATUS 有权
    滑动轴承和图像形成装置

    公开(公告)号:US20140226927A1

    公开(公告)日:2014-08-14

    申请号:US14346675

    申请日:2012-09-20

    申请人: NTN CORPORATION

    IPC分类号: F16C33/20 F16C33/10 F16C33/12

    摘要: Provided is a sliding bearing that has a simple, easy-to-manufacture structure, does not require an insulating sleeve or the like, is not affected by the material or surface roughness of a roller against which the bearing slides, exhibits low friction torque and low wear, tolerates moment loads, and is easy to replace; as well as an image forming apparatus using the bearing. The sliding bearing is a radial sliding bearing provided with a sliding bearing (1), an inner ring (2), and an outer ring (3), the inner ring (2) is made of melt-cast metal and the outer ring (3) being constituted by an article molded from a resin composition, the inner ring (2) comprising a concavely curved surface (2a) on part of the axial direction of the outer circumference and a bearing hole (4) for mating with a support shaft on the inner circumference, the outer ring (3) comprising a convexly curved surface (3a) that contacts and slides against the concavely curved surface (2a) on the outer circumference of the inner ring (2) along part of the axial direction of the inner circumference, and the inner ring (2) and the outer ring (3) relatively rotating without contacting each other apart from the contact between the convexly curved surface and the concavely curved surface.

    摘要翻译: 提供一种滑动轴承,其具有简单,易于制造的结构,不需要绝缘套筒等,不受轴承滑动的辊的材料或表面粗糙度的影响,表现出低摩擦转矩和 低磨损,容易承受力矩,易于更换; 以及使用该轴承的图像形成装置。 滑动轴承是设置有滑动轴承(1),内圈(2)和外圈(3)的径向滑动轴承,内圈(2)由熔铸金属制成,外圈 3)由由树脂组合物成型的制品构成,所述内圈(2)在外周的轴向的一部分上包括凹曲面(2a)和用于与支撑轴配合的轴承孔(4) 所述外圈(3)包括凸形弯曲表面(3a),所述凸形弯曲表面(3a)沿着所述内圈(2)的外周的一部分沿着所述内环(2)的外周的一部分接触并且抵靠所述凹形曲面 内圈和内圈(2)和外圈(3)相对旋转而不与凸曲面和凹曲面之间的接触彼此接触。

    Waveguide slot antenna and method for producing same

    公开(公告)号:US10355364B2

    公开(公告)日:2019-07-16

    申请号:US15754682

    申请日:2016-08-31

    申请人: NTN CORPORATION

    摘要: A waveguide tube slot antenna (1) includes a waveguide tube (10) that is made of a resin and includes a waveguide (2) extending in a tube axis direction; and a plurality of radiating slots (3) provided in the waveguide tube (10). The waveguide tube (10) includes first and second waveguide tube forming members (11 and 12) each having a traverse section having a shape with an end at each part in an extending direction of the waveguide (2), and is configured to define the waveguide (2) by being coupled to each other. The waveguide tube slot antenna (1) includes metal cores (20) disposed along the tube axis direction, and the metal cores (20) are held by both the waveguide tube forming members (11 and 12).

    Internal gear pump
    6.
    发明授权

    公开(公告)号:US09810215B2

    公开(公告)日:2017-11-07

    申请号:US14420351

    申请日:2013-07-26

    申请人: NTN CORPORATION

    摘要: Provided is an internal gear pump requiring fewer machining steps, allowing inexpensive manufacture, and offering high safety from the standpoint of function. The internal gear pump 1 comprises: a trochoid 4 in which an inner rotor 3 having a plurality of outer teeth is eccentrically and rotatably accommodated in an outer rotor 2 having a plurality of inner teeth, the outer teeth meshing with the inner teeth, and in which a suction-side chamber for suctioning liquid and a discharge-side chamber for discharging liquid that has been suctioned into the suction-side chamber are formed in between the inner teeth and outer teeth; a casing 5 in which is formed a recess 5a for accommodating the trochoid 4; and a cover 6 for closing off the recess 5a of the casing 5. At least some of the casing 5 is a body injection-molded from a resin composition. The invention also comprises a groove 5d in a portion of the recess 5a of the casing 5 in which the outer periphery is sealed, with a sealing ring 13 installed therein, and bushings 7 made from sintered metal that are provided integrally during injection molding in bolt fixing hole portions.