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    Tip seal for scroll compressor
    2.
    发明授权
    Tip seal for scroll compressor 有权

    公开(公告)号：US11536269B2

    公开(公告)日：2022-12-27

    申请号：US16484419

    申请日：2018-02-07

    Applicant: NTN CORPORATION

    Inventor： Takuya Ishii ,  Daichi Ito ,  Katsushi Takeo ,  Satoru Fukuzawa

    IPC: F04C18/02 ,  F04C27/00 ,  F01C19/00

    Abstract: A tip seal 1 for a scroll compressor capable of reducing a frictional force between scroll members and the tip seal where the tip seal 1 has a spiral shape for sealing a compression chamber formed between a fixed scroll and a movable scroll in a scroll compressor provided with the fixed scroll. The movable scroll having a plurality of concave parts 4 being formed by partially notching a sliding surface 5 on the scroll members, the concave parts 4 being arranged on at least one of a spiral inner peripheral surface 1b or a spiral outer peripheral surface 1a. Each of the concave parts 4 being open to the inner peripheral surface 1b or the outer peripheral surface 1a.

    Method for producing semispherical shoe for swash plate compressor and injection molding die
    3.
    发明授权
    Method for producing semispherical shoe for swash plate compressor and injection molding die 审中-公开

    公开(公告)号：US10670074B2

    公开(公告)日：2020-06-02

    申请号：US15505884

    申请日：2015-08-21

    Applicant: NTN CORPORATION

    Inventor： Takuya Ishii ,  Satoru Fukuzawa ,  Hirohisa Abe ,  Akihiro Oomori

    IPC: F16C29/02 ,  F04B27/12 ,  F04B27/10 ,  B29C44/42 ,  B29C45/00 ,  B29C45/17 ,  B29C45/56 ,  F04B27/08 ,  F16C33/20 ,  B29K101/10

    Abstract: The present invention provides a method for producing a durable semispherical shoe which can be prevented from being subjected to seizure even in a dry lubrication state in which there is no lubricating oil at a start time of an operation of a swash plate compressor, can be restrained from deteriorating in its lubricating property due to generated frictional heat, and can be restrained from deteriorating in its strength at a production time and an injection molding die. A semispherical shoe (4), for a swash plate compressor, to be produced by the production method has a base material (5), consisting of a hard material, which has a hollow part along a central axis thereof and a resin layer, consisting of a resin composition, which is formed on a surface of a planar part, disposed on a periphery of the base member, which is to be subjected to sliding contact with the swash plate and on a surface of a spherical part, disposed on the periphery thereof, which is to be subjected to sliding contact with a piston. A resin-filled portion (8) where the resin composition is filled and an empty portion where the resin composition is not filled are formed in the hollow part of the base material. The resin-filled portion (8) and the resin layer are formed by injecting and filling the resin composition into a portion to be formed as the resin-filled portion (8) with the base material (5) being disposed inside a cavity (22) of the injection molding die.

    Internal gear pump
    5.
    发明授权
    Internal gear pump 有权

    公开(公告)号：US10060430B2

    公开(公告)日：2018-08-28

    申请号：US15104188

    申请日：2014-12-10

    Applicant: NTN CORPORATION

    Inventor： Takuya Ishii ,  Hajime Asada

    IPC: F01C1/10 ,  F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C2/10 ,  F16C17/10 ,  F16C33/20 ,  F04C11/00 ,  F04C15/00 ,  F04C18/02 ,  F04C29/02 ,  F16C33/10

    Abstract: An internal gear pump integrally provided with a plain bearing requiring fewer machining steps, allowing inexpensive manufacture, and offering a highly stable seizing property. The internal gear pump has 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 the liquid that has been suctioned into the suction-side chamber are formed between the inner teeth and outer teeth; a drive shaft (9) fixed to the inner rotor (3); 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).

    Flow control valve seal and flow control valve device
    6.
    发明授权
    Flow control valve seal and flow control valve device 有权

    公开(公告)号：US11828385B2

    公开(公告)日：2023-11-28

    申请号：US17417363

    申请日：2019-12-24

    Applicant: NTN CORPORATION

    Inventor： Ken Yasuda ,  Takuya Ishii

    IPC: F16K5/04 ,  F16J15/20 ,  F16J15/3204 ,  F16K5/06 ,  F16K25/00 ,  F01P7/14

    CPC classification number: F16K5/0464 ,  F16J15/20 ,  F16J15/3204 ,  F16K5/0471 ,  F16K5/0668 ,  F16K5/0689 ,  F16K25/005 ,  F01P2007/146

    Abstract: To provide a flow control valve seal that is manufactured at a low cost, that makes wear damage of a rotor with which the flow control valve seal slidably contacts less, and that is superior in its low leak performance, low friction performance, and low wear performance. A seal (6) is installed in a flow control valve device (1) including a housing (2) having an introduction part (5) that receives a cooling water from an internal combustion engine, and a resin rotor (4) disposed in the housing (2) and having a spherical outer peripheral surface (4a), the rotor (4) being rotated relative to the housing (2). The seal (6) is disposed between the introduction part (5) and the rotor (4) in the housing (2) and slidably contacts with the outer peripheral surface (4a) of the rotor (4). The seal (6) is an injection molded body of a resin composition having injection-moldable fluororesin as a base resin. The fluororesin is at least one resin selected from among a tetrafluoroethylene-perfluoro alkylvinyl ether copolymer resin, a tetrafluoroethylene-hexafluoropropylene copolymer resin, and a tetrafluoroethylene-ethylene copolymer resin.

    COMPOSITE PLAIN BEARING, CRADLE GUIDE, AND SLIDING NUT
    7.
    发明申请
    COMPOSITE PLAIN BEARING, CRADLE GUIDE, AND SLIDING NUT 审中-公开
    复合平面轴承，导轨和滑动螺母

    公开(公告)号：US20150204383A1

    公开(公告)日：2015-07-23

    申请号：US14388738

    申请日：2013-02-08

    Applicant: NTN CORPORATION

    Inventor： Takuya Ishii ,  Masato Shimoda ,  Yasushi Oohashi ,  Satoru Fukuzawa

    IPC: F16C33/20 ,  F16H25/24 ,  F04B53/14 ,  F16C17/02

    CPC classification number: F16C33/201 ,  F04B1/141 ,  F04B53/14 ,  F05C2253/20 ,  F16C17/02 ,  F16C33/208 ,  F16C2208/36 ,  F16C2240/60 ,  F16C2360/42 ,  F16H25/24 ,  F16H2025/249 ,  Y10T74/1987

    Abstract: There is provided a composite plain bearing having excellent heat resistance, creep resistance under high surface pressure, low friction, abrasion resistance, and other characteristics while being capable of manufacture with high productivity. A composite plain bearing (1) comprising an ingot metal plate (2) and a resin layer (3) comprises a resin composition in which an aromatic polyether ketone resin or the like is used as a base resin, wherein the resin layer (3) is overlaid by injection molding and integrally provided on the surface on the surface of the ingot metal plate (2) to a thickness of 0.1 to 0.7 mm. The ingot metal plate (2) is chemically surface-treated on a face joined to the resin layer (3).

    Abstract translation: 提供了一种复合滑动轴承，其具有优异的耐热性，在高表面压力下的抗蠕变性，低摩擦力，耐磨性等特性，同时能够以高生产率制造。 包含铸锭金属板（2）和树脂层（3）的复合滑动轴承（1）包括使用芳族聚醚酮树脂等作为基础树脂的树脂组合物，其中树脂层（3） 通过注射成型覆盖，并且一体地设置在金属板（2）的表面上，厚度为0.1〜0.7mm。 在与树脂层（3）接合的面上对锭金属板（2）进行化学表面处理。

    SLIDING BEARING AND IMAGE FORMING APPARATUS
    8.
    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

    Applicant: NTN CORPORATION

    Inventor： Takuya Ishii ,  Ikuma Fujitsuka ,  Kei Hattori ,  Kazuo Hirose ,  Satoru Fukuzawa

    IPC: F16C33/20 ,  F16C33/10 ,  F16C33/12

    CPC classification number: F16C33/201 ,  F16C13/02 ,  F16C17/02 ,  F16C17/022 ,  F16C17/22 ,  F16C23/045 ,  F16C23/046 ,  F16C33/102 ,  F16C33/121 ,  F16C33/124 ,  F16C33/208 ,  F16C2202/32 ,  F16C2204/52 ,  F16C2204/60 ,  F16C2204/66 ,  F16C2204/70 ,  F16C2204/72 ,  F16C2208/32 ,  F16C2208/36 ,  F16C2208/40 ,  F16C2208/52 ,  F16C2208/60 ,  F16C2208/66 ,  F16C2208/78 ,  F16C2220/04 ,  F16C2240/30 ,  F16C2240/54 ,  F16C2324/16 ,  F16C2370/38 ,  G03G15/167 ,  G03G15/2053 ,  G03G15/757 ,  G03G21/1647

    Abstract: 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.

    Abstract translation: 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。

    Internal gear pump
    9.
    发明授权
    Internal gear pump 有权

    公开(公告)号：US09810215B2

    公开(公告)日：2017-11-07

    申请号：US14420351

    申请日：2013-07-26

    Applicant: NTN CORPORATION

    Inventor： Takuya Ishii ,  Masato Shimoda ,  Hajime Asada ,  Kei Hattori

    IPC: F04C2/00 ,  F04C2/08 ,  F04C15/06 ,  F04C2/14 ,  F01C21/10 ,  F04C2/10 ,  F04C11/00

    CPC classification number: F04C2/14 ,  F01C21/10 ,  F04C2/086 ,  F04C2/102 ,  F04C11/005 ,  F04C15/06 ,  F04C2210/14 ,  F04C2230/21 ,  F04C2230/22 ,  F04C2230/231 ,  F04C2240/51 ,  F05C2253/20

    Abstract: 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.

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